MUTUAL OF AMERICA INVESTMENT CORP
485BPOS, 1999-06-04
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    AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JUNE 4, 1999


                                                        REGISTRATION NO. 33-6486

================================================================================
                      SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                                ---------------
                                   FORM N-1A
             REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933         [X]

                          PRE-EFFECTIVE AMENDMENT NO.                        [ ]


                        POST-EFFECTIVE AMENDMENT NO. 17                      [X]


                                    AND/OR
         REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940    [X]


                                AMENDMENT NO. 18


                                ---------------


                MUTUAL OF AMERICA INVESTMENT CORPORATION
               (EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER)


                                ---------------

                                320 PARK AVENUE
                           NEW YORK, NEW YORK 10022
        (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)(ZIP CODE)
                                 (212) 224-1600
             (DEPOSITOR'S TELEPHONE NUMBER, INCLUDING AREA CODE)

                                ---------------

                        DOLORES J. MORRISSEY, PRESIDENT
                  MUTUAL OF AMERICA INVESTMENT CORPORATION
                                320 PARK AVENUE,
                            NEW YORK, NEW YORK 10022
                    (NAME AND ADDRESS OF AGENT FOR SERVICE)

                                ---------------

                                   COPY TO:
                             STANLEY M. LENKOWICZ, ESQ
                             SENIOR VICE PRESIDENT,
                      DEPUTY GENERAL COUNSEL AND SECRETARY
                  MUTUAL OF AMERICA INVESTMENT CORPORATION
                                320 PARK AVENUE
                            NEW YORK, NEW YORK 10022

                                ---------------

 APPROXIMATE DATE OF PROPOSED PUBLIC OFFERING: As soon as practicable after the
                  effective date of the Registration Statement.


 IT IS PROPOSED THAT THIS FILING WILL BECOME EFFECTIVE:(CHECK APPROPRIATE SPACE)
                   [X] immediately upon filing pursuant to paragraph (b).
                   [ ] on (date) pursuant to paragraph (b).
                   [ ] 60 days after filing pursuant to paragraph (a)(1).
                   [ ] on (date) pursuant to paragraph (a)(1).
                   [ ] 75 days after filing pursuant to paragraph (a)(2).
                   [ ] on (date) pursuant to paragraph (a)(2) of Rule 485.


================================================================================

<PAGE>


                  MUTUAL OF AMERICA INVESTMENT CORPORATION
                             CROSS-REFERENCE SHEET



<TABLE>
<CAPTION>
  ITEMS IN
 PART A OF
 FORM N-1A  CAPTION IN FORM N-1A                      CAPTION OR LOCATION IN PROSPECTUS
- ----------------------------------------------------------------------------------------------------------
     <S>    <C>                                       <C>
      1     Front and Back Cover Pages .............. Front and Back Covers
      2     Risk/Return Summary:
            Investments, Risks, and Performance ..... Summary of How Our Funds Invest
      3     Risk/Return Summary:
            Fee Table ............................... Not Applicable (shares only to separate accounts)
      4     Investment Objectives, Principal
            Investment Strategies, and Related
            Risks ................................... Details about How Our Funds Invest and Related Risks
      5     Management's Discussion of Fund
            Performance ............................. Not Applicable (Included in Annual Report)
      6     Management, Organization, and
            Capital Structure ....................... Management of the Funds
      7     Shareholder Information ................. Information on Fund Shares
      8     Distribution Agreements ................. Not Applicable
      9     Financial Highlights Information ........ Financial Highlights
</TABLE>


<TABLE>
<CAPTION>
  ITEMS IN
 PART B OF                                             CAPTION OR LOCATION IN
 FORM N-1A  CAPTION IN FORM N-1A                       STATEMENT OF ADDITIONAL INFORMATION
- -------------------------------------------------------------------------------------------------------------
  <S>       <C>                                        <C>
  10        Cover Page and Table of Contents ......... Cover
  11        Fund History ............................. Investment Company's Form of Operations
  12        Description of the Fund and Its
            Investments and Risks .................... Investment Strategies and Related Risks; Fundamental
                                                       Investment Restrictions; Description of Corporate Bond
                                                       Ratings; Use of Standard & Poor's Indices
  13        Management of the Fund ................... Management of the Investment Company
  14        Control Persons and Principal Holders
            of Securities ............................ Investment Company's Form of Operations
  15        Investment Advisory and Other
            Services ................................. Investment Advisory Arrangements;
                                                       Independent Auditors; Legal Matters; Custodian
  16        Brokerage Allocation and Other
            Practices ................................ Portfolio Transactions and Brokerage
  17        Capital Stock and Other Securities ....... Investment Company's Form of Operations
  18        Purchase, Redemption, and Pricing of
            Shares ................................... Purchase, Redemption and Pricing of Shares
  19        Taxation of the Fund ..................... Taxation of the Investment Company
  20        Underwriters ............................. Distribution Arrangements
  21        Calculation of Performance Data .......... Yield and Performance Information
  22        Financial Statements ..................... Financial Statements
</TABLE>

  ITEMS IN
 PART C OF  CAPTION IN FORM N-1A AND IN PART C
 FORM N-1A      OF REGISTRATION STATEMENT
- ----------------------------------------------
  23        Exhibits
  24        Persons Controlled by or Under
            Common Control with the Fund
  25        Indemnification
  26        Business and Other Connections of
            the Investment Adviser
  27        Principal Underwriters
  28        Location of Accounts and Records
  29        Management Services
  30        Undertakings

<PAGE>


                           PART C. OTHER INFORMATION


ITEM 23. EXHIBITS
1(a)     Articles of Incorporation of Mutual of America Investment Corporation
         (the "Investment Company") (1)

1(b)     Articles of Amendment, dated September 22, 1986 (1)

1(c)     Articles Supplementary, dated July 25, 1988 (1)

1(d)     Articles Supplementary, dated February 16, 1993 (1)

1(e)     Articles Supplementary, dated October 4, 1993 (1)

1(f)     Articles Supplementary, dated April 5, 1994 (1)

1(g)     Articles Supplementary, dated April 13, 1995 (1)

1(h)     Articles Supplementary, dated September 16, 1997 (1)

1(i)     Articles Supplementary, dated April 6, 1999 (2)

2(a)     By-Laws of the Investment Company (1)

2(b)     Revision to Article II, Section 2.2 and Article III, Section 3.4 of
         the By-Laws (1)

2(c)     Revision to Article III, Section 3.8 of the By-Laws (1)

4(a)     Investment  Advisory  Agreement,  between  the  Investment  Company and
         Mutual of America Life  Insurance  Company  ("Mutual of  America"),  as
         investment adviser (1)

4(b)     Assumption  Agreement,  between Mutual of America and Mutual of America
         Capital Management  Corporation (the "Adviser"),  as investment adviser
         (1)

4(c)     Supplement AA to Investment Advisory Agreement, between the Investment
         Company and the Adviser (1)

4(d)     Supplement AE to Investment Advisory Agreement, between the Investment
         Company and the Adviser (1)

4(e)     Supplement dated May 1, 1999 to Investment Advisory  Agreement,
         between the Investment Company and the Adviser (3)

4(f)     Subadvisory Agreement, between the Adviser and Fred Alger Management,
         Inc. (1)

4(g)     Subadvisory Agreement, between the Adviser and Oak Associates (1)

4(h)     Subadvisory Agreement, between the Adviser and Palley-Needelman Asset
         Management, Inc. (1)

5        Distribution Agreement, between the Investment Company and Mutual of
         America, as Distributor (4)

7        Custody Agreement, between the Investment Company and The Chase
         Manhattan Bank (1)

9(a)     Consent and Opinion of General  Counsel for Equity Index,  All America,
         Aggressive  Equity,  Composite,  Bond,  Mid-Term  Bond, Short-Term Bond
         and Money Market Funds, as restated (1)

9(b)     Consent  and  Opinion  of General Counsel for Mid-Cap Equity Index Fund
         shares(2)

10(a)    Consent of Arthur Andersen LLP(2)

10(b)    Consent of Swidler Berlin Shereff Friedman LLP(2)

10(c)    Powers  of  Attorney  of  Ms. Morrissey and Messrs. Altstadt, Flanagan,
         Mertz, Needham and Nolan (1)

27.1-8   Financial  Data  Schedules  for  Equity Index, All America,  Aggressive
         Equity,  Composite,  Bond,  Mid-Term  Bond,  Short-Term  Bond and Money
         Market Funds (2)

- --------------
(1)   Included in this Post-Effective Amendment No. 17
(2)   Included in Post-Effective Amendment No. 16 filed with the Commission on
      April 15, 1999
(3)   Included in Post-Effective Amendment No. 15 filed with the Commission on
      February 12, 1999
(4)   Included in Post-Effective Amendment No. 11 filed with the Commission on
      April 28, 1995


                                      C-1
<PAGE>

ITEM 24. PERSONS CONTROLLED BY OR UNDER COMMON CONTROL WITH REGISTRANT

      The Adviser is an indirect  wholly-owned  subsidiary  of Mutual of America
Life Insurance Company (Mutual of America Life). Mutual of America Life is a New
York  mutual  life  insurance  company,  and as such no person has the direct of
indirect  power to control  Mutual of America Life except by virtue of a persons
capacity  as a  director  or  executive  officer.  Each  holder  of an  in-force
insurance  policy or annuity  contract  issued by Mutual of America Life has the
right to vote for the  election of directors of Mutual of America Life at annual
elections and upon other corporate matters where policyholders' votes are taken.
Mutual of America Life directly or indirectly owns the following companies:

Mutual of America Life Insurance  Company,  a New York mutual insurance company,
wholly owns

    o  Mutual of  America  Corporation,  a  Delaware  corporation,  and
    o  Mutual of America Foundation, a New York not-for-profit corporation.

Mutual of America Corporation wholly owns

    o  The American  Life  Insurance  Company  of New  York,  a New  York  stock
       corporation,
    o  Mutual of America  Securities Corporation, a  Delaware  corporation,  and
    o  Mutual  of  America  Capital  Management  Corporation  (the  Adviser),  a
       Delaware corporation.

Mutual of America Life Insurance Company and The American Life Insurance Company
of New York,  through their separate  accounts,  wholly own all of  Registrant's
shares.

Mutual of America  Life  Insurance  Company  currently  owns a  majority  of the
outstanding  shares of Mutual of America  Institutional  Funds, Inc., a Maryland
corporation  registered  under the 1940 Act as a management  investment  company
whose shares are publicly offered to institutional investors.


ITEM 25. INDEMNIFICATION

     ARTICLES OF INCORPORATION  OF  THE  INVESTMENT  COMPANY.  The  Articles  of
Incorporation of the Investment Company provide in substance that no director or
officer of the Invesment Company shall be liable  to  the Investment Company  or
its shareholders for money damages, unless the director or officer is subject to
liability by reason of willful misfeasance, bad faith, gross negligence or
reckless disregard of duties in the conduct of his or her office.

      BY-LAWS OF THE INVESMENT COMPANY. The By-Laws of the Investment Company
provide for the indemnification of present and former officers and directors of
the Investment Company against liability by reason of service to the Investment
Company, unless the officer or director is subject to liability by reason of
willful misfeasance, bad faith, gross negligence or reckless disregard of the
duties involved in the conduct of his or her office (Disabling Conduct). No
indemnification shall be made to an officer or director unless there has been a
final adjudication on the merits, a dismissal of a proceeding for insufficiency
of evidence of Disabling Conduct, or a reasonable determination has been made
that no Disabling Conduct occurred. The Investment Company may advance payment
of expenses only if the officer or director to be indemnified undertakes to
repay the advance unless indemnification is made and if one of the following
applies: the officer of director provides a security for his or her undertaking,
the Investment Company is insured against losses from any lawful advances, or a
reasonable determination has been made that there is reason to believe the
officer or director ultimately will be entitled to indemnification.

      INSURANCE. Coverage for officers and director of the Adviser, Distributor
and the Investment Company is provided under an Investment Management insurance
policy issued by American International Specialty Lines Insurance Company, with
excess coverage by Chubb custom Insurance Company, to Mutual of America Life
Insurance Company et al. The aggregate limit of liability under the policy per
year is $10 million, with a $200,000 deductible per entity insured and a $1,000
deductible for individual insureds.


                                      C-2
<PAGE>

      BY-LAWS OF THE ADVISER. The By-Laws of Mutual of America Capital
Management Corporation, the Investment Company's Adviser, provide for the
indemnification by the Corporation of present and former directors and officers
of the Corporation and of any organization for which service is rendered at the
request of the Corporation and permits the advance payment of expenses in
certain circumstances for covered persons in connection with suits by third
parties and derivative suits. Each covered person must have acted in good faith
and in a manner the person reasonably believed to be in or not opposed to the
best interests of the Corporation and, with respect to any criminal action or
proceeding, had no reasonable cause to believe the conduct was unlawful. If in
connection with a derivative suit a covered person shall have been adjudged to
be liable to the Corporation, indemnification shall not be made unless and only
to the extent that the Delaware Court of Chancery or the court in which such
action or suit was brought shall determine upon application that, despite the
adjudication of liability but in view of all the circumstances of the case, such
person is entitled to indemnity. Thus, the officers and directors of the fund
and the Adviser are indemnified by the Adviser for their services in connection
with the Investment Company to the extent set forth in the By-Laws.

     BY-LAWS OF THE DISTRIBUTOR. The By-laws of Mutual of America Securities
Corporation, the principal underwriter and distributor for the fund, provide
for the indemnification by the Corporation of present and former directors and
officers of the Corporation and of any organization for which service is
rendered at the request of the Corporation and permits the advance payment of
expenses in certain circumstances for covered persons in connection with suits
by third parties and derivative suits. Each covered person must have acted in
good faith and in a manner the person reasonably believed to be in or not
opposed to the best interests of the Corporation and, with respect to any
criminal action or proceeding, had no reasonable cause to believe the conduct
was unlawful. If in connection with a derivative suit a covered person shall
have been adjudged to be liable to the Corporation, indemnification shall not
be made unless and only to the extent that the Delaware Court of Chancery or
the court in which such action or suit was brought shall determine upon
application that, despite the adjudication of liability but in view of all the
circumstances of the case, such person is entitled to indemnity. Thus, the
officers and directors of the Distributor are indemnified by the Distributor
for their services in connection with the Investment Company to the extent set
forth in the By-Laws.

     UNDERTAKING. Insofar as indemnification for liability arising under the
Securities Act of 1933 may be permitted to directors, officers and controlling
persons of the registrant pursuant to the foregoing provisions, or otherwise,
the registrant has been advised that in the opinion of the Securities and
Exchange Commission such indemnification is against public policy as expressed
in the Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
registrant of expenses incurred or paid by a director, officer, or controlling
person of the registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the registrant will, unless in
the opinion of its counsel the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question whether
such indemnification by its it against public policy as expressed in the Act
and will be governed by the final adjudication of such issue.


                                      C-3
<PAGE>

ITEM 26. BUSINESS AND OTHER CONNECTIONS OF THE INVESTMENT ADVISER

     Mutual of America Capital Management corporation (the Adviser) is the
investment adviser to the Investment Company and is registered as an investment
adviser under the Investment Advisers Act of 1940. The names, addresses and
positions with the Adviser of each director and officer of the Adviser are set
forth below.

<TABLE>
<CAPTION>
                                 POSITIONS                              PRINCIPAL OCCUPATION
NAME                             WITH ADVISER                          DURING PAST TWO YEARS
- ----                             ------------                          ---------------------
<S>                              <C>                       <C>
Thomas J. Moran ................ Director, Chairman of     President, Chief Executive Officer and
320 Park Avenue                  the Board                 Director, Mutual of America Life
NY, NY 10022

F. Harlan Batrus ............... Director                  Partner, Lazard Freres
30 Rockefeller Plaza
NY, NY 10020

Roger E. Birk .................. Director                  Chairman Emeritus, Merrill Lynch & Co. Inc.
Merrill Lynch
77 Broad Street
Red Bank, NJ 07701

Robert X. Chandler ............. Director                  Director, Development Office, Archdiocese of
Director, Development Office                               Boston
Archdiocese of Boston
2121 Commonwealth Ave.
Brighton, MA 02135

Nathaniel A. Davis ............. Director                  Vice President, Network Engineering
17680 Old Meadow Rd.                                       Operations, Nextel Communications
McLean, VA 22102

Anthony F. Earley .............. Director                  Chairman, President and Chief Operating
Detroit Edison Company                                     Officer, Detroit Edison Co.
2000 Second Avenue
Room 2407 WCB
Detroit, MI 48226

William T. Knowles ............. Director                  Consultant
Orr's Island, ME 04066

Walter A. McDougal ............. Director                  Former Chairman and President, Richmond
Garden City, NY 11530                                      Hill Savings Bank

James E. Quinn ................. Director                  Vice Chairman, Tiffany & Co.
727 Fifth Avenue
NY, NY 10022

Richard J. Ciecka .............. President and Chief       Vice Chairman of the Board, Mutual of
320 Park Avenue                  Financial Officer;        America Life, until October 1998
NY, NY 10022                     Director

Manfred Altstadt ............... Senior Executive Vice     Senior Executive Vice President and Chief
320 Park Avenue                  President and Chief       Financial Officer of Mutual of America Life
NY, NY 10022                     Financial Officer         and American Life

Patrick A. Burns ............... Senior Executive Vice     Senior Executive Vice President and General
320 Park Avenue                  President and             Counsel of Mutual of America Life and
NY, NY 10022                     General Counsel           American Life

Amir Lear ...................... Executive Vice            Senior Vice President, Mutual of America
320 Park Avenue                  President and             Life, until October 1998
NY, NY 10022                     Assistant to the
                                 President and CEO

Andrew L. Heiskell ............. Executive Vice            Executive Vice President of the Adviser
320 Park Avenue                  President
NY, NY 10022

Joseph Brunken ................. Senior President          Senior Vice President of the Adviser since
320 Park Avenue                                            November, 1997; prior thereto, Vice
NY, NY 10022                                               President, Nikko Capital Management
                                                           (USA), Inc.
</TABLE>


                                      C-4
<PAGE>

<TABLE>
<CAPTION>
                              POSITIONS                               PRINCIPAL OCCUPATION
NAME                          WITH ADVISER                            DURING PAST TWO YEARS
- ----                          ------------                            ---------------------
<S>                           <C>                        <C>

Mary E. Canning ................ Senior Vice President     Senior Vice President of the Adviser since May
320 Park Avenue                                            1999; prior thereto, Managing
NY, NY  10022                                              Director/Portfolio Manager at Phoenix Duff &
                                                           Phelps
s
Susan J. Ferber ................ Senior Vice President     Senior Vice President of the Adviser since May
320 Park Avenue                                            1999; prior thereto, Vice President of Business
NY, NY  10022                                              Development, Argus Investors' Counsel


Jon J. LaBerge ................. Senior Vice President     Senior Vice President of the Adviser
320 Park Avenue
NY, NY 10022

Thomas Larsen ............... Executive Vice             Executive Vice President of the Adviser since
320 Park Avenue               President                  June 1998; prior thereto, Senior
NY, NY 10022                                             Vice President, Desai Capital Management

Stanley M. Lenkowicz ........ Senior Vice President,     Senior Vice President and Deputy General
320 Park Avenue               Deputy General             Counsel, Mutual of America Life
NY, NY 10022                  Counsel & Secretary

Nancy McAvey ................ Senior Vice President      Senior Vice President of the Adviser
320 Park Avenue
NY, NY 10022

John P. Middleton ........... Senior Vice President      Senior Vice President of the Adviser since
320 Park Avenue                                          May 1999; prior thereto, Vice President,
NY, NY  10022                                            Raymond James & Associates

Paul Travers ................ Senior Vice President      Senior Vice President of the Adviser
320 Park Avenue
NY, NY 10022

Gary P. Wetterau ............ Senior Vice President      Vice President of the Adviser
320 Park Avenue
NY, NY 10022

David Wood .................. Senior Vice President      Senior Vice President of the Adviser
320 Park Avenue
NY, NY 10022

Aline Couture ............... Vice President             Vice President of the Adviser
320 Park Avenue
NY, NY 10022

Doris Klug .................. Vice President             Vice President of the Adviser
320 Park Avenue
NY, NY 10022

Jonathan Lee ................ Vice President             Vice President of the Adviser
320 Park Avenue
NY, NY 10022

Robert H. Stewart ........... Vice President             Vice President of the Adviser
320 Park Avenue
NY, NY 10022
</TABLE>

     Each of Palley-Needelman Asset Management, Inc. ("Palley-Needelman"), Oak
Associates, Ltd. ("Oak Associates") and Fred Alger Management, Inc. ("Alger
Management") is a subadviser for a portion of the Active Assets of the All
America Fund allocated to it. Each subadviser is registered as an investment
adviser under the Investment Advisers Act of 1940. The names, addresses and
positions of each director and officer of each subadviser are incorporated by
reference to the Form ADV of the subadviser filed with the Securities and
Exchange Commission, as set forth below.

     Palley-Needelman Asset Management, Inc., Form ADV, SEC File No. 801-9755.

     Oak Associates, Ltd., Form ADV, SEC File No. 801-23632.

     Fred Alger Management, Inc., Form ADV, SEC File No. 801-06709.


                                      C-5
<PAGE>

ITEM 27. PRINCIPAL UNDERWRITER


     (a) Mutual of America Life Insurance Company, the principal underwriter of
the Registrant, acts as depositor and principal underwriter of Mutual of America
Separate Account No. 2, and as principal underwriter of The American Separate
Account No. 2 and The American Separate Account No. 3 of The American Life
Insurance Company of New York.


    (b) The name, business address and position of each senior officer and
director of Mutual of America are as follows:


<TABLE>
<CAPTION>
<S>                       <C>
NAME AND PRINCIPAL        POSITIONS AND OFFICERS
BUSINESS ADDRESS          WITH PRINCIPAL UNDERWRITER
- ----------------------    ------------------------------------------------------
DIRECTORS
Clifford L.
Alexander, Jr.            Director
Washington, D.C.

Patricia A. Cahill        Director
Denver, Colorado

Roselyn P. Epps, M.D.     Director
Bethesda, Maryland

Dudley H. Hafner          Director
Dallas, Texas

Earle H. Harbison, Jr.    Director
St. Louis, Missouri

Frances R. Hesselbein     Director
New York, New York

William Kahn              Director
St. Louis, Missouri

LaSalle D. Leffall,
Jr., M.D.                 Director
Washington, D.C.

Michael A. Pelavin        Director
Flint, Michigan

Fioravante G. Perrotta    Director
New York, New York

Francis H. Schott         Director
New York, New York

O. Stanley Smith, Jr.     Director
Columbia, South Carolina

Sheila M. Smythe          Director
Valhalla, New York

Elie Wiesel               Director
New York, New York

OFFICERS-DIRECTORS
William J. Flynn          Chairman of the Board
Thomas J. Moran           President and Chief Executive Officer
Manfred Altstadt          Senior Executive Vice President and Chief
                          Financial Officer
Patrick A. Burns          Senior Executive Vice President and General Counsel
Salvatore R. Curiale      Senior Executive Vice President, Technical
                          Operations
</TABLE>



                                      C-6
<PAGE>

<TABLE>
<CAPTION>
NAME AND PRINCIPAL        POSITIONS AND OFFICERS
BUSINESS ADDRESS          WITH PRINCIPAL UNDERWRITER
- ----------------------    ------------------------------------------------------
<S>                       <C>

OTHER OFFICERS
Diane Aramony             Senior Vice President, Corporate Secretary and
                          Assistant to the Chairman
Meyer Baruch              Senior Vice President, State Compliance and
                          Government Regulations since July 1996; prior
                          thereto, Assistant Chief of the Life Insurance
                          and Companies Bureau of The New York State Insurance
                          Department
Deborah Swinford Becker   Senior Vice President and Associate General Counsel
Nicholas Branchina        Senior Vice President and Associate Treasurer
William Breneisen         Executive Vice President, Office of Technology
Jeremy J. Brown           Executive Vice President and Chief Actuary since
                          April 1997; prior thereto Consulting Actuary with
                          Milliman & Robertson
Allen J. Bruckheimer      Senior Vice President and Associate Treasurer
Patrick Burke             Senior Vice President, Special Markets
Sean Carroll              Senior Vice President, Facilities Management
William Conway            Executive Vice President, Marketing and Corporate
                          Communications
William A. DeMilt         Executive Vice President, Real Estate Management
Warren A. Essner          Senior Vice President, Corporate Services
James Flynn               Senior Vice President, Marketing
Michael Gallagher         Senior Vice President, Direct Response and Technical
Boca Raton, FL            Communications
Harold J. Gannon          Senior Vice President, Corporate Tax
Gordon Gaspard            Senior Vice President, Technical Services
Robert Giaquinto          Senior Vice President, MIS Operations
Thomas E. Gilliam         Executive Vice President and Assistant to the
                          President and Chief Executive Officer
John R. Greed             Executive Vice President and Treasurer since May 1997;
                          Senior Vice President and Deputy Treasurer July 1996
                          to May 1997; prior thereto, partner, Arthur Andersen
                          LLP
Thomas A. Harwood         Senior Vice President, Competition and Asset Retention
Sandra Hersko             Senior Vice President, Technical Administration
Edward J.T. Kenney        Senior Vice President and Assistant to the President
                          and Chief Executive Officer
Gregory A. Kleva, Jr.     Executive Vice President and Deputy General Counsel
Robert Kordecki           Senior Vice President, National Accounts
Stanley M. Lenkowicz      Senior Vice President and Deputy General Counsel
Daniel LeSaffre           Senior Vice President, Human Resources and Training
Robert W. Maull           Senior Vice President and Corporate Actuary
George L. Medlin          Executive Vice President, Internal Audit
Lynn M. Nadler            Senior Vice President, Training -- Boca Raton
Boca Raton, FL
Roger F. Napoleon         Senior Vice President and Associate General Counsel
James Peterson            Senior Vice President, Training -- New York and
                          Leadership Development
William Rose              Senior Vice President, Field Operations
Dennis J. Routledge       Senior Vice President, LAN/Telecommunications
Robert W. Ruane           Senior Vice President, Corporate Communications
                          and Direct Response
William G. Shannon        Senior Vice President, Individual Financial Planning
Walter W. Siegel          Senior Vice President and Actuary
Joan M. Squires           Senior Vice President, Business Applications
Eldon Wonacott            Senior Vice President, Field Administration
Raymond Yeager            Senior Vice President, MIS Operations
Boca Raton, FL

     The business address of all officers and directors is 320 Park Avenue, New
York, New York 10022, unless otherwise noted.
</TABLE>


     (c) Not applicable.



ITEM 28. LOCATION OF ACCOUNTS AND RECORDS

     The records required to be maintained by Section 31(a) of the Investment
Company Act of 1940 and Rules 31a-3 promulgated thereunder, will be maintained
by the Adviser at its offices at 320 Park Avenue, New York, New York 10022 or
with its custodian.


ITEM 29. MANAGEMENT SERVICES

     Not applicable.


ITEM 30. UNDERTAKINGS

     Not applicable.



                                      C-7
<PAGE>

                                   SIGNATURES


Pursuant to the requirements of the Securities Act of 1933 and the Investment
Company Act of 1940, the registrant certifies that it meets all of the
requirements for effectiveness of this post-effective amendment to its
Registration Statement pursuant to Rule 485(b) of the Securities Act of 1933
and has duly caused this post-effective amendment to its Registration Statement
to be signed on its behalf by the undersigned, thereunto duly authorized in the
City of New York, the State of New York, the 4th day of June, 1999.


                                     MUTUAL OF AMERICA INVESTMENT CORPORATION


                                     By: /s/   DOLORES J. MORRISSEY
                                        --------------------------------

                                               DOLORES J. MORRISSEY


                                                PRESIDENT AND CEO

     Pursuant to the requirements of the Securities Act of 1933, this
post-effective amendment to its Registration Statement has been signed below by
the following persons in the capacities on June 4, 1999.



PRINCIPAL EXECUTIVE OFFICER:


By: /s/   DOLORES J. MORRISSEY
     --------------------------
     DOLORES J. MORRISSEY


     PRESIDENT AND CEO



PRINCIPAL FINANCIAL OFFICER and PRINCIPAL ACCOUNTING OFFICER:


/s/   MANFRED ALTSTADT
- -----------------------------
MANFRED ALTSTADT



DIRECTORS:


/s/   MANFRED ALTSTADT
- -----------------------------
MANFRED ALTSTADT



/s/   DOLORES J. MORRISSEY
- -----------------------------
DOLORES J. MORRISSEY



          *
- -----------------------------
PETER J. FLANAGAN



          *
- -----------------------------
GEORGE J. MERTZ



          *
- -----------------------------
JAMES J. NEEDHAM


*By: /s/   MANFRED ALTSTADT
     -------------------------
     ATTORNEY-IN-FACT

                                      C-8
<PAGE>

                                 EXHIBIT INDEX


EXHIBIT
NUMBER                                                                   PAGE
- -------                                                                  ----

1(a)        Articles of Incorporation of Mutual of America Investment
            Corporation (the "Investment Company")

1(b)        Articles of Amendment, dated September 22, 1986

1(c)        Articles Suplementary, dated July 25, 1988

1(d)        Articles Supplementary, dated February 16, 1993

1(e)        Articles Supplementary, dated October 4, 1993

1(f)        Articles Supplementary, dated April 5, 1994

1(g)        Articles Supplementary, dated April 13, 1995

1(h)        Articles Supplementary, dated September 16, 1997

2(a)        By-Laws of the Investment Company

2(b)        Revision to Article II, Section 2.2 and Article III,
            Section 3.4 of the By-Laws

2(c)        Revision to Article III, Section 3.8 of the By-Laws

4(a)        Investment Advisory Agreement, between the Investment
            Company and Mutual of America Life Insurance Company
            ("Mutual of America"), as investment adviser

4(b)        Assumption Agreement, between Mutual of America and Mutual
            of America Capital Management Corporation (the "Adviser"),
            as investment adviser

4(c)        Supplement AA to Investment Advisory Agreement, between
            the Investment Company and the Adviser

4(d)        Supplement AE to Investment Advisory Agreement, between
            the Investment Company and the Adviser

4(f)        Subadvisory Agreement, between the Adviser and Fred Alger
            Management, Inc.

4(g)        Subadvisory Agreement, between the Adviser and Oak
            Associates

4(h)        Subadvisory Agreement, between the Adviser and
            Palley-Needelman Asset Management, Inc.

7           Custody Agreement, between the Investment Company and The
            Chase Manhattan Bank

9(a)        Consent and Opinion of General Counsel for Equity Index,
            All America, Aggressive Equity, Composite, Bond, Mid-Term
            Bond, Short-Term Bond and Money Market Funds, as restated

10(c)       Powers of Attorney of Ms. Morrissey and Messrs. Altstadt,
            Flanagan, Mertz, Needham and Nolan




                                                                    Exhibit 1(a)

                            ARTICLES OF INCORPORATION

                                       OF

                    MUTUAL OF AMERICA INVESTMENT CORPORATION

      The  undersigned  Daniel J.  Robins,  whose  office  address  is 666 Fifth
Avenue, New York, New York 10103 being an adult over eighteen years of age, does
hereby form a corporation under the General Laws of the State of Maryland.

                                    ARTICLE 1
                                      NAME

      The name of the corporation (hereinafter referred to as the "Corporation")
shall be Mutual of America Investment Corporation.

                                   ARTICLE II
                                    DURATION

      The period of its duration is perpetual.

                                   ARTICLE III
                                     PURPOSE

      The purposes for which the Corporation is formed are:

      (a) To engage generally in the business of investing, reinvesting, owning,
holding and trading in securities (as defined in the  Investment  Company Act of
1940,  as from time to time  amended  (referred  to  herein  as the  "Investment
Company Act")) or repurchase agreements to issue redeemable securities,  and, in
connection  therewith,  to hold all or part of its assets in cash, and generally
engage in the business of an open-end investment company of the management type;

      (b) To  exercise  all rights,  powers,  and  privileges  of  ownership  or
interest in all  securities or repurchase  agreements  held by the  Corporation,
including the right to vote thereon and  otherwise act with respect  thereto and
to do all acts for the preservation,  protection, improvement and enhancement in
the value of all such securities and repurchase agreements.

<PAGE>

      (c) To issue and sell shares of its own capital  stock in such amounts and
on such terms and  conditions,  for such purposes and for such amount or kind of
consideration  (including,  without  limitation,  securities)  now or  hereafter
permitted by the  Investment  Company Act, the laws of the State of Maryland and
by these Articles of Incorporation, as its Board of Directors may determine.

      (d) To redeem, repurchase, or otherwise acquire, hold, dispose of, resell,
transfer, reissue or cancel (all without the vote or consent of the shareholders
of the Corporation) shares of its capital stock, in any manner and to the extent
now or  hereafter  permitted  by the laws of the State of Maryland  and by these
Articles of Incorporation.

      (e) To do everything necessary,  suitable or proper for the accomplishment
of any purpose or the  attainment of any object or the  furtherance of any power
herein set forth,  either alone or in association  with others,  and to take any
action  incidental  or  appurtenant  to or growing out of or connected  with the
aforesaid business or purposes, objects or powers.

      (f) In  general,  to carry on any other  lawful  business  and to have and
exercise all the rights, powers and privileges and conferred upon corporation by
the laws of the State of Maryland as in force from time to time.

      The Corporation shall have the power to conduct and carry on its business,
or any part thereof, and to have one or more offices, and to exercise any or all
of its  corporate  powers and  rights,  in the State of  Maryland,  in any other
states, territories,  districts, colonies and dependencies of the United States,
and in any or all foreign countries.

      The foregoing  clauses shall be construed both as objects and powers,  and
the  foregoing  enumeration  of  specific  powers  shall not be held to limit or
restrict in any manner the general powers of the Corporation.

                                   ARTICLE IV
                       PRINCIPAL OFFICE AND RESIDENT AGENT

      The post office address of the principal office of the Corporation in this
State is c/o The Corporation  Trust  Incorporated,  32 South Street,  Baltimore,
Maryland 21202.  The name of the resident agent of the Corporation in this State
is The Corporation Trust Incorporated, a corporation of this State, and the post
office  address of the resident  agent is 32 South Street,  Baltimore,  Maryland
21202.


                                       2
<PAGE>

                                    ARTICLE V
                                  CAPITAL STOCK

      Section 5.1.  The total  number of shares of capital  stock of all classes
which the  Corporation  shall have  authority  to issue is one  hundred  million
shares, par value $.01 per share, (the "Shares"), with an aggregate par value of
$1,000,000. Forty million of such Shares may be issued in the following classes,
each  class  comprising  the  number  of  shares  and  having  the  designations
indicated;  subject,  however,  to the authority  herein granted to the Board of
Directors to change the designation of any class and to increase or decrease any
such number of Shares:

       Money Market Fund.................................... Ten Million

       Stock Fund........................................... Ten Million

       Bond Fund............................................ Ten Million

       Composite Fund....................................... Ten Million

The balance of sixty  million  Shares may be issued by the Board of Directors in
such  initial  classes,  or in any new class or classes,  each  comprising  such
number  of  Shares  and  having  such   preferences,   rights,   voting  powers,
restrictions,  limitations  as  to  dividends,  qualifications,  and  terms  and
conditions of redemption as shall be fixed and  determined  from time to time by
resolution or  resolutions  providing for the issuance of such Shares adopted by
the Board of  Directors,  to whom  authority so to fix and determine the same is
hereby  expressly  granted.  In  addition,  the  Board of  Directors  is  hereby
expressly  granted  authority  to  change  the  designation  of any class and to
increase or decrease the number of Shares of any class, but the number of Shares
of any class shall not be decreased  by the Board of Directors  below the number
of Shares thereof then outstanding.

      Section  5.2.  The Board of  Directors  may  classify  or  reclassify  any
unissued  Shares into one or more classes that may be established and designated
from time to time. The Corporation may hold as treasury Shares, reissue for such
consideration  and on such terms as the Board of  Directors  may  determine,  or
cancel,  at  their  discretion  from  time to  time,  any  shares  of any  class
reacquired by the Corporation.

      Section 5.3. All persons who shall acquire Shares of a class shall acquire
the same subject to the  provisions of these Articles of  Incorporation  and the
Corporation's  By-Laws as they may exist  from time to time.  The Shares of said
classes  and any Shares of any further  class that may from time be  established
and designated by the Board of Directors (unless provided otherwise by the Board
of Directors with respect to such further class at the time of establishing  and
designating such further class) shall have the following


                                       3
<PAGE>

relative  preferences,  rights, voting powers,  restrictions,  limitations as to
dividends, qualifications, and terms and conditions of redemption:

            (a) Assets Belonging to Classes.  All consideration  received by the
      Corporation  for the  issue  or  sale of  Shares  of a  particular  class,
      together  with all  assets in which  such  consideration  is  invested  or
      reinvested all income earnings,  profits, and proceeds thereof,  including
      any  proceeds  derived  from the sale,  exchange  or  liquidation  of such
      assets,  and any funds or payments  derived from any  reinvestment of such
      proceeds in whatever  form the same may be,  shall  irrevocably  belong to
      that class for all purposes,  subject only to the rights of creditors, and
      shall be so recorded  upon the books of account of the  Corporation.  Such
      consideration,  assets, income,  earnings,  profits, and proceeds thereof,
      including any proceeds  derived from the sale,  exchange or liquidation of
      such assets,  and any funds or payments  derived from any  reinvestment of
      such proceeds, in whatever from the same may be, together with any General
      Items allocated to that class as provided in the following  sentence,  are
      herein referred to as "assets  belonging to" that class. In the event that
      there are any assets,  income,  earnings,  profits,  and proceeds thereof,
      funds, or payments which are not readily  identifiable as belonging to any
      particular class (collectively  "General Items"), such General Items shall
      be allocated by or under the supervision of the Board of Directors, to and
      among any one or more of the classes  established and designated from time
      to time in such manner and on such basis as the Board of Directors, in its
      sole  discretion,  deems  fair and  equitable;  and any  General  Items so
      allocated  to a  particular  class shall  belong to that class.  Each such
      allocation by the Board of Directors  shall be conclusive  and binding for
      all purposes.

            (b)  Liabilities  Belonging to Class.  The assets  belonging to each
      particular  class shall be charged with the liabilities of the Corporation
      in respect of that class and all  expenses,  costs,  charges and  reserves
      attributable to that class, and any general liabilities,  expenses, costs,
      charges or reserves of the Corporation which are not readily  identifiable
      as belonging to any particular  class shall be allocated and charged by or
      under the  supervision  of the Board of  Directors to and among any one or
      more of the classes  established  and designated from time to time in such
      manner  and on  such  basis  as  the  Board  of  Directors,  in  its  sole
      discretion,  deems fair and equitable. The liabilities,  expenses,  costs,
      charges  and  reserves  allocated  and so  charged  to a class are  herein
      referred to as "liabilities  belonging to" that class.  Each allocation of
      liabilities,  expenses,  costs,  charges  and  reserves  by the  Board  of
      Directors shall be conclusive and binding for all purposes.

            (c) Dividends. Dividends and distributions on Shares of a particular
      class may be paid with such  frequency,  in such forms and in such amounts
      as the Board of Directors may from time to time  determine.  Dividends may
      be accrued  daily or  otherwise,  after  providing  for actual and accrued
      liabilities  belonging to that class,


                                       4
<PAGE>

      pursuant to a standing resolution or resolutions adopted only once or with
      such frequency as the Board of Directors may determine.

            All dividends on Shares of a particular class shall be paid only out
      of surplus or other lawfully  available assets  determined by the Board of
      Directors as belonging to such class.  All dividends and  distributions on
      Shares of a particular  class shall be distributed pro rata to the holders
      of that class in  proportion to the number of Shares of that class held by
      such holders at the date and time of record established for the payment of
      such  dividends  or  distributions,  except  that in  connection  with any
      dividend or  distribution  program or procedure the Board of Directors may
      determine that no dividend or  distribution  shall be payable on Shares as
      to which the  Shareholder's  purchase  order and/or  payment have not been
      received by the time or times  established by the Board of Directors under
      such program or procedure.

            The  Corporation  intends  to  qualify  as a  "regulated  investment
      company"  under the  Internal  Revenue  Code of 1954,  as amended,  or any
      successor or  comparable  statute  thereto,  and  regulations  promulgated
      thereunder.  Inasmuch  as the  computation  of net  income  and  gains for
      Federal income tax purposes may vary from the  computation  thereof on the
      books of the Corporation,  the Board of Directors shall have the power, in
      its sole  discretion,  to  distribute  in any  fiscal  year as  dividends,
      including  dividends  designated  in  whole  or in part as  capital  gains
      distributions,  amounts  sufficient,  in  the  opinion  of  the  Board  of
      Directors,  to enable the Corporation to qualify as a regulated investment
      company and to avoid  liability of the  Corporation for Federal income tax
      in respect of that year. However, nothing in the foregoing shall limit the
      authority of the Board of Directors to make  distribution  greater than or
      less than the  amount  necessary  to  qualify  as a  regulated  investment
      company  and to  avoid  liability  of the  Corporation  for such  tax.  In
      furtherance,  and not in limitation of the foregoing,  in the event that a
      class of  shares  has a net  capital  loss for a fiscal  year,  and to the
      extent that a net capital loss for a fiscal year offsets net capital gains
      from one or more of the other classes,  the amount to be deemed  available
      for  distribution to the class or classes with the net capital gain may be
      reduced by the amount offset.

            Dividends and distributions may be made in cash, property or Shares,
      or a  combination  thereof,  as  determined  by the Board of  Directors or
      pursuant to any program that the Board of Directors  may have in effect at
      the time for the election by each Shareholder of the mode of the making of
      such dividend or  distribution to that  Shareholder.  Any such dividend or
      distribution paid in Shares will be paid at the net asset value thereof as
      defined in subsection 5.3(g).

            (d)  Liquidation.  In the event of the liquidation or dissolution of
      the Corporation or of a particular  class,  the Shareholders of each class
      that has been  established and designated and is being liquidated shall be
      entitled  to  receive,  as a


                                       5
<PAGE>

      class,  when and as declared by the Board of Directors,  the excess of the
      assets  belonging  to that class over the  liabilities  belonging  to that
      class. The holders of Shares of any class shall not be entitled thereby to
      any  distribution  upon  liquidation  of any other  class.  The  assets so
      distributable  to  the  Shareholders  of any  particular  class  shall  be
      distributed  among such shareholders in proportion to the number of Shares
      of that class held by them and  recorded on the books of the  Corporation.
      The  liquidation  of any  particular  class in which there are Shares then
      outstanding  may be  authorized  by vote of a  majority  of the  Board  of
      Directors then in office.

            (e) Voting.  On each matter submitted to a vote of the Shareholders,
      each  holder  of a Share  shall be  entitled  to one  vote for each  Share
      standing in his or her name on the books of the Corporation,  irrespective
      of the class thereof, and all outstanding Shares of all classes shall vote
      as a single class ("Single Class Voting");  provided, however, that (a) as
      to any  matter  with  respect  to which a  separate  vote of any  class is
      required  by  the  Investment  Company  Act  or by  the  Maryland  General
      Corporation Law or as to any matter that the Board of Directors determine,
      in its sole  discretion,  concerns only one or more  particular  class,  a
      separate  vote by that class shall apply in lieu of Single Class Voting as
      described  above;  (b) in the event that the  separate  vote  requirements
      referred to in (a) above apply with respect to one or more classes,  then,
      subject to (c)  below,  the  Shares of all other  classes  shall vote as a
      single class;  and (c) as to any matter which does not affect the interest
      of a  particular  class,  only the  holders  of  Shares of the one or more
      affected classes shall be entitled to vote.

            (f) Redemption by Shareholder. Each holder of Shares of a particular
      class shall have the right to require the Corporation to redeem all or any
      part of the Shares of that class  standing  in the name of such  holder on
      the books of the Corporation at a redemption  price per share as in effect
      from time to time.  The  redemption  price of Shares shall be equal to the
      net asset value per Share of that class  (determined  in  accordance  with
      subsection (g) of this Section 5.3) less such redemption  charge,  if any,
      as  is  determined  by  the  Board  of  Directors.   Redemption  shall  be
      conditional upon the Corporation having funds legally available  therefor.
      Payment of the redemption price shall be in cash, provided,  however, that
      if the  Board  of  Directors  determines,  which  determination  shall  be
      conclusive, that conditions exist which make payment wholly in cash unwise
      or  undesirable,  the  Corporation  may make  payment  wholly or partly in
      portfolio  securities or in other assets  belonging to the class of Shares
      being redeemed.

            Notwithstanding the foregoing,  the Corporation may postpone payment
      of the redemption price and may suspend the right of the holders of Shares
      of any class to require  the  Corporation  to redeem  Shares of that class
      during any period or at any time when and to the extent  permissible under
      the Investment Company Act.


                                       6
<PAGE>

            (g) Net Asset Value per Share.  The net asset value per Share of any
      class shall be the  quotient  obtained  by  dividing  the value of the net
      assets of that  class  (being the value of the  assets  belonging  to that
      class less the liabilities belonging to that class) by the total number of
      Shares of that class  outstanding,  as  determined  by or  pursuant to the
      direction of the Board of Directors  from time to time,  all determined in
      accordance  with  generally   accepted   accounting   principles  and  not
      inconsistent with the Investment Company Act.

            (h) Equality. All Shares of each particular class shall represent an
      equal  proportionate  interest  in the  assets  belonging  to  that  class
      (subject to the  liabilities  belonging to that class),  and each Share of
      any particular class shall be equal to each other Share of that class. The
      Board of  Directors  may from time to time divide or combine the Shares of
      any  particular  class into a greater  or lesser  number of Shares of that
      class without thereby changing the  proportionate  beneficial  interest in
      the assets  belonging to that class or in any way  affecting the rights of
      outstanding Shares of any other class.

            (i) Conversion or Exchange  Rights.  Subject to compliance  with the
      requirements  of the Investment  Company Act, the Board of Directors shall
      have the  authority  to  provide  that the  holders of Shares of any class
      shall have the right to convert or exchange said Shares into shares of one
      or more other classes or Shares in accordance with such  requirements  and
      procedures as may be established by the Board of Directors.

                                   ARTICLE VI
                               ISSUE OF NEW STOCK

      Section 6.1  Issuance.  The Board of Directors is  authorized to issue and
sell from time to time  (without the  necessity of offering the same or any part
thereof to existing  shareholders)  all or any portion or portions of the entire
authorized  but unissued  Shares of the  Corporation,  and all or any portion or
portions of the Shares of the Corporation from time to time in its treasury, for
cash or for any other lawful  consideration or considerations  and on or for any
terms,  conditions,  or prices  consistent with the provisions of law and of the
Articles of  Incorporation  and By Laws of the Corporation at the time in force;
provided, however, that in no event shall the Shares of the Corporation having a
par value be issued or sold for a consideration or considerations less in amount
or value  than the par  value of the  Shares so  issued  or sold,  and  provided
further that in no event shall any Shares of the  Corporation  be issued or sold
for a consideration  (which shall be net to the Corporation  after  underwriting
discounts  or  commissions)  less in amount or value than the net asset value of
the Shares so issued or sold.


                                       7
<PAGE>

      Section  6.2.  Fractional  Shares.  The  Corporation  may  issue  and sell
fractions  of Shares  having pro rata all the rights of full  Shares  including,
without limitation, the right to vote and to receive dividends, and wherever the
words  "share" or  "shares"  are used in these  Articles  or in the By Laws they
shall be deemed to include  fractions  of  Shares,  where the  context  does not
clearly indicate that only full Shares are intended.

      Section 6.3. No holder of Shares shall, as such holder,  have any right to
purchase or subscribe  for any Shares or any other  security of the  Corporation
which it may  issue or sell  other  than  such  right,  if any,  as the Board of
Directors in its discretion may determine.

                                   ARTICLE VII
                                    DIRECTORS

      Section 7.1. The number of directors  constituting  the Board of Directors
shall be five (5), which number may be changed in accordance with the By Laws of
the Corporation but shall never be less than three. The names of the persons who
shall act as directors  until the first annual  meeting of the  Corporation  and
until their successors have been duly chosen and qualified are:

                           Harold W. Luebs
                           Calvin E. Green
                           Mary E. Ruddy
                           Carmi Schwartz
                           William H. Hackett

      Section 7.2. The business and affairs of the Corporation  shall be managed
under the direction of the Board of Directors  which shall have and may exercise
all powers of the  Corporation  except  those  powers which are by law, by these
Articles of  Incorporation  or by the By Laws  conferred upon or reserved to the
shareholders.  In furtherance  and not in limitation of the powers  conferred by
law, the Board of Directors shall have the power:

      (i)   to make alter, amend, and repeal bylaws of the Corporation;

      (ii)  from time to time to set apart out of any assets of the  Corporation
            otherwise  available for dividends a reserve or reserves for working
            capital or for any other proper purpose or purposes,  and to reduce,
            abolish or add to any such reserve or reserves  from time to time as
            said Board of Directors  may deem to be in the best  interest of the
            Corporation;  and to  determine in its  discretion  what part of the
            assets of the Corporation  available for dividends in excess of such
            reserve or


                                       8
<PAGE>

            reserves shall be declared in dividends and paid to the shareholders
            of the Corporation.

      Section  7.3.  Any  determination  made  in  good  faith  and,  so  far as
accounting   matters  are  involved,   in  accordance  with  generally  accepted
accounting  principles,  by or  pursuant  to  the  direction  of  the  Board  of
Directors, as to the amount of the assets, debts,  obligations or liabilities of
the  Corporation,  as to the amount of any  reserves  or charges  set up and the
propriety  thereof,  as to the time or purpose  for  creating  such  reserves or
charges,  as to the use,  alteration or  cancellation of any reserves or charges
(whether or not any debt,  obligation  or liability  for which such  reserves or
charges shall have been created,  shall have been paid or discharged or shall be
then or thereafter  required to be paid or discharged),  as to the establishment
or  designation of procedures or methods to be employed for valuing any asset of
the  Corporation  and as to the value of any asset,  as to the allocation of any
asset of the Corporation to a particular  class or classes of Shares,  as to the
funds available for the  declaration of dividends,  and as to the declaration of
dividends,  as to  the  charging  of  any  liability  of  the  Corporation  to a
particular class or classes of Shares, as to the number of outstanding Shares of
any  class  or  classes,  as to the  estimated  expense  to the  Corporation  in
connection  with purchases or  redemptions  of its Shares,  as to the ability to
liquidate investments in orderly fashion, or as to any other matters relating to
the issue,  sale,  purchase or redemption or other acquisition or disposition of
investments or Shares,  or the determination of the net asset value per Share of
any class, shall be final and conclusive.

      Section 7.4. Specifically and without limitation of subsection (3) of this
Article Seventh but subject to the exception therein prescribed, the Corporation
may  enter  into  management  or  advisory,   underwriting,   distribution   and
administration  contracts  and other  contracts,  and may otherwise do business,
with Mutual of America Life  Insurance  Company,  and any parent,  subsidiary or
affiliate  of  such  firm  or  any  affiliate  of  any  such  affiliate,  or the
stockholders,  directors,  officers and employees  thereof,  and may deal freely
with one another  notwithstanding that the Board of Directors of the Corporation
may be composed in part of directors,  officers or employees of such firm and/or
its parents, subsidiaries or affiliates and that officers of the Corporation may
have been, are or become directors,  officers,  or employees of such firm and/or
its  parents,  subsidiaries  or  affiliates,  and  neither  such  management  or
advisory,  underwriting,  distribution or administration contracts nor any other
contract  or  transaction  between  the  Corporation  and such firm  and/or  its
parents,  subsidiaries or affiliates shall be invalidated or in any way affected
thereby,  nor shall any director or officer of the  Corporation be liable to the
Corporation or to any  stockholder or creditor  thereof or to any person for any
loss incurred by it or him under or by reason of such  contract or  transaction;
provided  that  nothing  herein  shall  protect  any  director or officer of the
Corporation  against any liability to the Corporation or to its security holders
to which he would  otherwise  be subject by reason of willful  misfeasance,  bad
faith,  gross  negligence  or reckless  disregard of the duties  involved in the


                                       9
<PAGE>

conduct of his office;  and provided  always that such  contract or  transaction
shall have been on terms that were not unfair to the  Corporation at the time at
which it was entered into.

                                  ARTICLE VIII
                               VOTING REQUIREMENTS

      Section 8.1.  Notwithstanding  any  provision  of law  requiring a greater
proportion than a majority of the votes of all classes (or of any class entitled
to vote  thereon  as a  separate  class) to take or  authorize  any  action,  in
accordance with the authority  granted by Section 2-104 of the Maryland  General
Corporation  Law, the Corporation is hereby  authorized to take such action upon
the  concurrence of a majority of the aggregate  number of Shares (or a majority
of the  aggregate  number of Shares of a class  entitled  to vote  thereon  as a
separate class) entitled to vote thereon.

      Section 8.2.  The right to cumulate  votes in the election of directors is
expressly prohibited.

                                    ARTICLE X
                                 INDEMNIFICATION

      To the maximum  extent  permitted  by the General  Corporation  Law of the
State of Maryland as from time to time amended,  the Corporation shall indemnify
its  currently  acting and its former  directors  and officers and those persons
who,  at  the  request  of  the  Corporation,   serve  or  have  served  another
corporation,  partnership,  joint venture,  trust or other  enterprise in one or
more of such capacities.

                                   ARTICLE XI
                                    AMENDMENT

      The  Corporation  reserves the right from time to time to alter,  amend or
repeal any  provisions  contained  in these  Articles of  Incorporation,  now or
hereafter  authorized  by law,  including any  amendment  which alters  contract
rights of any  outstanding  Shares,  at any time in the manner now or  hereafter
prescribed by the laws of the State of Maryland, and all rights conferred herein
upon the Corporation's shareholders,  directors and officers are granted subject
to such reservation.

      In Witness  Whereof,  the  undersigned  incorporator  of Mutual of America
Investment  Corporation  who executed the  foregoing  Articles of  Incorporation
hereby acknowledges the same to be his act.


                                       10
<PAGE>

Dated the 14th day of February, 1986

                                                        /s/ Daniel J. Robins
                                                        ------------------------
                                                        Daniel J. Robins
                                                        666 Fifth Avenue
                                                        New York, New York 10103

STATE OF NEW YORK
                     ss.:
COUNTY OF NEW YORK

SUBSCRIBED AND SWORN to before me
this 14th day of February, 1986

      /s/ Ann F. Cannon
- -----------------------------
       Notary Public

My commission expires ____________________


                                       11



                                                                    Exhibit 1(b)

                    MUTUAL OF AMERICA INVESTMENT CORPORATION

                              ARTICLES OF AMENDMENT

      Mutual of America Investment  Corporation,  a Maryland  corporation having
its  principal  office in  Baltimore  City,  Maryland  (hereinafter  called  the
Corporation),  hereby  certifies  to the State  Department  of  Assessments  and
Taxation of Maryland, that:

      FIRST:  The charter of the  Corporation  is hereby amended by striking out
Section 5.1 of the Articles of  Incorporation  and inserting in lieu thereof the
following:

      Section 5.1.  The total  number of shares of capital  stock of all classes
which the  Corporation  shall have  authority  to issue to two  hundred  million
shares, par value $.01 per share, (the "Shares"), with an aggregate par value of
$2,000,000. Forty million of such Shares may be issued in the following classes,
each  class  comprising  the  number  of  shares  and  having  the  designations
indicated;  subject,  however,  to the authority  herein granted to the Board of
Directors to change the designation of any class and to increase or decrease any
such number of shares:

         Money Market Fund                Ten Million
         Stock Fund                       Ten Million
         Bond Fund                        Ten Million
         Composite Fund                   Ten Million

The balance of one hundred  sixty  million  Shares may be issued by the Board of
Directors  in  such  initial  classes,  or in any new  class  of  classes,  each
comprising  such number of Shares and having such  preferences,  rights,  voting
powers, restrictions, limitations as to dividends,


<PAGE>

qualifications,  and terms and  conditions  of  redemption as shall be fixed and
determined  from time to time by  resolution  or  resolutions  providing for the
issuance of such Shares adopted by the Board of Directors,  to whom authority so
to fix and  determine the same is hereby  expressly  granted.  In addition,  the
Board of  Directors,  is  hereby  expressly  granted  authority  to  change  the
designation of any class and to increase or decrease the number of Shares of any
class, but the number of Shares of any class shall not be decreased by the Board
of Directors below the number of Shares thereof then outstanding.

      SECOND:  The amendment to the charter of the  Corporation  herein made was
duly approved by unanimous  written consent of the board of directors  effective
as of September 12, 1986;  and that at the time of the approval by the directors
there were no shares of stock of the Corporation  entitled to vote on the matter
either outstanding or subscribed for.

      THIRD:  (a) The total  number of  shares  of all  classes  of stock of the
Corporation  heretofore  authorized is one hundred million  (100,000,000) of the
par value of one cent ($.01) each, and of the aggregate par value of one million
Dollars ($1,000,000).

      (b) The total number of shares of all classes of stock of the  Corporation
as increased is two hundred million (200,000,000) shares of the par value of one
cent  ($.01)  each  and of the  aggregate  par  value  of  two  million  dollars
($2,000,000).

      (c) Set forth in Article FIRST is a description as amended,  of each class
of stock of the  Corporation  including the  preferences,  conversion  and other
rights,   voting   powers,   restrictions,    limitations   as   to   dividends,
qualifications, and terms and conditions of redemption.


                                       2
<PAGE>

      FOURTH:  These articles of amendment shall become effective on the date of
filing.

      IN WITNESS WHEREOF,  MUTUAL OF AMERICA  INVESTMENT  CORPORATION has caused
these  articles to be signed in its name and on its behalf by its  President and
witnessed by its Secretary on September 22, 1986.

                                          MUTUAL OF AMERICA INVESTMENT
                                          CORPORATION

                                          By /s/ Dwight K. Bartlett, III
                                            ------------------------------------
                                                      President

Witness:

  /s/ Stephanie J. Kopp
- ---------------------------
       Secretary

      THE UNDERSIGNED,  President of Mutual of America  Investment  Corporation,
who executed on behalf of said corporation the foregoing  Articles of Amendment,
of which this certificate is made a part, hereby  acknowledges,  in the name and
on behalf of said  corporation,  the  foregoing  Articles of Amendment to be the
corporate act of said corporation and further certifies that, to the best of his
knowledge,  information and belief, the matters and facts set forth therein with
respect to the  approval  thereof are true in all material  respects,  under the
penalties of perjury.

                                            /s/ Dwight K. Bartlett, III
                                        -----------------------------------


                                       3


                                                                    Exhibit 1(c)

               MUTUAL OF AMERICA INVESTMENT CORPORATION

                 ARTICLES SUPPLEMENTARY TO THE CHARTER

      Mutual of America Investment  Corporation,  a Maryland  corporation having
its  principal   office  in   Baltimore,   Maryland   (hereinafter   called  the
"Corporation"),  hereby  certifies to the State  Department of  Assessments  and
Taxation of Maryland, that:

      FIRST:  The Board of  Directors  of the  Corporation,  at a  meeting  duly
convened and held on May 3, 1988, adopted a resolution  increasing the aggregate
number of shares of capital stock, par value $.01 per share (the "Shares"),  and
the number of Shares of each class, that the Corporation is authorized to issue,
as follows:

            (i) The total number of shares of all classes  that the  Corporation
      has  authority  to  issue  were  200,000,000  before  the  increase,   and
      1,000,000,000 as increased.

            (ii) The  number of shares  of stock of each  class are as  follows,
      subject,   however,   to  the   authority   granted  in  the  Articles  of
      Incorporation  to the Board of Directors to change the  designation of any
      class and to increase or decrease any such number of shares:

                                       Before the Increase        As Increased
                                       -------------------        ------------
      Money Market Fund                     10,000,000              25,000,000
      Stock Fund                            10,000,000             400,000,000
      Bond Fund                             10,000,000              25,000,000
      Composite Fund                        10,000,000             200,000,000

<PAGE>

      The balance of undesignated shares may be issued by the Board of Directors
      in such initial classes, or any new class of classes, each comprising such
      number of shares and  having  such  preferences,  rights,  voting  powers,
      restrictions,  limitations as to dividends,  qualifications, and terms and
      conditions  of redemption  as shall be fixed and  determined  from time to
      time by  resolution  or  resolutions  providing  for the  issuance of such
      shares adopted by the Board of Directors,  to whom authority so to fix and
      determine the same is in the Articles of Incorporation  expressly granted.
      In addition,  the Board of  Directors is in the Articles of  Incorporation
      expressly  granted authority to change the designation of any class and to
      increase or decrease the number of shares of any class,  but the number of
      shares of any class shall not be decreased by the Board of Directors below
      the number of shares thereof then outstanding.

            (iii)  The par  value of the  shares  of stock of each  class,  both
      before the increase, and as increased, is $.01 per share.

            (iv) The  aggregate  par value of all the shares of all  classes was
      $2,000,000 before the increase, and is $10,000,000 as increased.

      SECOND:  The  Corporation  is registered as an open-end  company under the
Investment Company Act of 1940.

      THIRD:  The total number of shares of capital  stock that the  Corporation
has  authority  to issue  has  been  increased  by the  Board  of  Directors  in
accordance with Section 2-105(c) of the Maryland General Corporation Law.


                                       2
<PAGE>

      IN WITNESS WHEREOF,  MUTUAL OF AMERICA  INVESTMENT  CORPORATION has caused
these  articles to be signed in its name and on its behalf by its  President and
witnessed by its Secretary on 25th of July, 1988.

                                          MUTUAL OF AMERICA INVESTMENT
                                          CORPORATION

                                          By  /s/ Dwight K. Bartlett, III
                                            ------------------------------------
                                                    President

Witness:

   /s/ Stephanie J. Kopp
- ----------------------------
        Secretary

      THE UNDERSIGNED,  President of Mutual of America  Investment  Corporation,
who executed on behalf of said corporation the foregoing Articles Supplementary,
of which this certificate is made a part, hereby  acknowledges,  in the name and
on behalf of said corporation,  the foregoing  Articles  Supplementary to be the
corporate act of said corporation and further certifies that, to the best of his
knowledge,  information and belief, the matters and facts set forth therein with
respect to the  approval  thereof are true in all material  respects,  under the
penalties of perjury.

                                                 /s/ Dwight K. Bartlett, III
                                                --------------------------------


                                       3


                                                                    Exhibit 1(d)

               MUTUAL OF AMERICA INVESTMENT CORPORATION

                 ARTICLES SUPPLEMENTARY TO THE CHARTER

      MUTUAL OF AMERICA INVESTMENT  CORPORATION,  a Maryland  corporation having
its  principal   office  in   Baltimore,   Maryland   (hereinafter   called  the
"Corporation"),  hereby  certifies to the State  Department of  Assessments  and
Taxation of Maryland, that:

      FIRST: The Corporation is an open-end company registered as such under the
Investment  Company Act of 1940, as amended (the "1940 Act"),  with authority to
issue an aggregate amount of 1,000,000,000  shares of capital stock and to issue
the number of shares of stock of each class as follows:

     Money Market Fund.......................................25,000,000
     Stock Fund.............................................400,000,000
     Bond Fund...............................................25,000,000
     Composite Fund.........................................200,000,000

      SECOND: All shares of the Corporation's  capital stock have a par value of
$.01 per share.  The aggregate par value of all the shares of all classes of the
Corporation's capital stock is Ten Million Dollars ($10,000,000).

      THIRD:  The Board of Directors of the  Corporation,  acting in  accordance
with Section  2-105(c) of the General  Corporation Law of the State of Maryland,
hereby  increases  the  number of  authorized  shares  of each of the  following
classes of the Corporation's capital stock as follows:

                                Before the Increase            As Increased
                                -------------------            ------------
Money Market Fund               25,000,000                     50,000,000

Bond Fund                       25,000,000                     200,000,000

      FOURTH:  The Board of Directors of the  Corporation,  acting in accordance
with Section  2-105(c) of the General  Corporation Law of the State of Maryland,
hereby  decreases  the  number of  authorized  shares  of each of the  following
classes of the Corporation's capital stock as follows:

                                Before the Decrease            As Decreased
                                -------------------            ------------
Stock Fund                      400,000,000                    300,000,000

Composite Fund                  200,000,000                    100,000,000


<PAGE>

      FIFTH:  The Board of Directors of the  Corporation,  acting in  accordance
with Section  2-105(c) of the General  Corporation Law of the State of Maryland,
hereby designates the following additional classes of the Corporation's  capital
and authorizes the issuance of shares for each of the additional  classes of the
Corporation's capital stock as follows:

                                     Number of Authorized Shares
                                     ---------------------------
Equity Index Fund                            75,000,000

Short-Term Bond Fund                         50,000,000

Mid-Term Bond Fund                           50,000,000

      SIXTH: All of the additional  shares of the Money Market Fund and the Bond
Fund and all of the newly  authorized  shares  of each of the  newly  designated
Equity Index Fund,  Short-Term  Bond Fund and Mid-Term  Bond Fund shall have the
powers,  preferences and voting or other special rights, and the qualifications,
restrictions and limitations set forth in the Corporation's charter, as amended,
and as required by the 1940 Act.

      SEVENTH:  All of the  additional  shares of the Money  Market Fund and the
Bond Fund and all of the newly authorized shares of each of the newly designated
Equity Index Fund,  Short-Term Bond Fund and Mid-Term Bond Fund shall have a par
value of $.01 per share.

      EIGHTH:  The aggregate par value of all the shares of all classes,  before
the  occurrence of the events as set forth in Articles  Third,  Fourth and Fifth
was, and upon the occurrence of the events set forth in Articles  Third,  Fourth
and Fifth is, Ten Million Dollars ($10,000,000).

      IN WITNESS WHEREOF,  MUTUAL OF AMERICA  INVESTMENT  CORPORATION has caused
these  presents to be signed in its name and on its behalf by its  President and
attested by its Secretary on February 16, 1993.

                                            MUTUAL OF AMERICA INVESTMENT
                                               CORPORATION

                                            By: /s/ Dolores J. Morrissey
                                               ---------------------------------
                                                    Dolores J. Morrissey
                                                    President

Attest:

  /s/ Stephanie J. Kopp
- ------------------------
     Stephanie J. Kopp
     Secretary


                                       2
<PAGE>

      THE UNDERSIGNED,  President of MUTUAL OF AMERICA  INVESTMENT  CORPORATION,
who executed on behalf of said corporation the foregoing Articles  Supplementary
to the Charter,  of which this Certificate is made a part, hereby  acknowledges,
in  the  name  and  on  behalf  of  said  corporation,  the  foregoing  Articles
Supplementary  to the Charter to be the  corporate act of said  corporation  and
further  certifies  that, to the best of his knowledge,  information and belief,
the matters and facts set forth therein with respect to the approval thereof are
true in all material respects, under the penalties of perjury.

                                                  /s/ Dolores J. Morrissey
                                                  ------------------------


                                       3



                                                                    Exhibit 1(e)

                    MUTUAL OF AMERICA INVESTMENT CORPORATION

                      ARTICLES SUPPLEMENTARY TO THE CHARTER

      Mutual of America Investment  Corporation,  a Maryland  corporation having
its  principal   office  in   Baltimore,   Maryland   (hereinafter   called  the
"Corporation"),  hereby  certifies to the State  Department of  Assessments  and
Taxation of Maryland, that:

      FIRST: In accordance with Section 2-105(c) of Maryland General Corporation
Law, The Board of Directors of the  Corporation,  at a meeting duly convened and
held on September 21, 1993, adopted a resolution increasing the aggregate number
of shares of capital  stock,  par value $.01 per share (the  "Shares"),  and the
number of Shares of certain  classes,  that the  Corporation  is  authorized  to
issue, as follows:

            (i) The total number of Shares of all classes  that the  Corporation
      has  authority  to issue  were  1,000,000,000  before  the  increase,  and
      2,000,000,000  as  increased.

            (ii) The  number of shares  of stock of each  class are as  follows,
      subject,   however,   to  the   authority   granted  in  the  Articles  of
      Incorporation  to the Board of Directors to change the  designation of any
      class and to increase or decrease any such number of shares:

                             Before the Increase        As Increased
                             -------------------        ------------
Money Market Fund                    50,000,000         100,000,000
Stock Fund                          300,000,000         500,000,000
Bond Fund                           200,000,000         200,000,000 (no change)
Composite Fund                      100,000,000         150,000,000
Equity Index Fund                    75,000,000          75,000,000 (no change)
Short-Term Bond Fund                 50,000,000          50,000,000 (no change)
Mid-Term Bond Fund                   50,000,000          75,000,000


<PAGE>

      The balance of undesignated shares may be issued by the Board of Directors
in such  initial  classes,  or any new class of classes,  each  comprising  such
number  of  shares  and  having  such   preferences,   rights,   voting  powers,
restrictions,  limitations  as  to  dividends,  qualifications,  and  terms  and
conditions of redemption as shall be fixed and  determined  from time to time by
resolution or  resolutions  providing for the issuance of such shares adopted by
the Board of Directors, to whom authority so to fix and determine the same is in
the Articles of  Incorporation  expressly  granted.  In  addition,  the Board of
Directors is in the Articles of  Incorporation  expressly  granted  authority to
change the  designation  of any class and to increase or decrease  the number of
shares  of any  class,  but the  number  of  shares  of any  class  shall not be
decreased  by the Board of  Directors  below the number of shares  thereof  then
outstanding.

      SECOND: The par value of all Shares of the Corporation's  capital stock of
all classes, before the occurrence of events set forth in Article First was, and
upon the occurrence of the events set forth in Article First, is $.01 per share.

      THIRD:  The  aggregate  par value of all the  Shares of the  Corporation's
capital  stock of all classes  before the  occurrence of the events set forth in
Article First was Ten Million Dollars  ($10,000,000)  and upon the occurrence of
the events set forth in Article First is Twenty Million Dollars ($20,000,000).

      FOURTH:  The  Corporation  is registered as an open-end  company under the
Investment Company Act of 1940.


<PAGE>

      IN WITNESS WHEREOF,  MUTUAL OF AMERICA  INVESTMENT  CORPORATION has caused
these  articles to be signed in its name and on its behalf by its  President and
attested by its Secretary on October 4, 1993.

                                         MUTUAL OF AMERICA INVESTMENT
                                            CORPORATION

                                          By  /s/ Dolores J. Morrissey
                                            ------------------------------------
                                                  Dolores J. Morrissey
                                                  President


ATTEST:

   /s/ Stephanie J. Kopp
- ----------------------------
       Stephanie J. Kopp
       Secretary

      THE UNDERSIGNED,  President of Mutual of America  Investment  Corporation,
who executed on behalf of said corporation the foregoing Articles Supplementary,
of which this certificate is made a part, hereby  acknowledges,  in the name and
on behalf of said corporation,  the foregoing  Articles  Supplementary to be the
corporate act of said corporation and further certifies that, to the best of her
knowledge,  information and belief, the matters and facts set forth therein with
respect to the  approval  thereof are true in all material  respects,  under the
penalties of perjury.

                                               /s/ Dolores J. Morrissey
                                             ----------------------------
                                                   Dolores J. Morrissey




                                                                    Exhibit 1(f)

               MUTUAL OF AMERICA INVESTMENT CORPORATION

                 ARTICLES SUPPLEMENTARY TO THE CHARTER

      MUTUAL OF AMERICA INVESTMENT  CORPORATION,  a Maryland  corporation having
its  principal   office  in   Baltimore,   Maryland   (hereinafter   called  the
"Corporation"),  hereby  certifies to the State  Department of  Assessments  and
Taxation of Maryland, that:

      FIRST: The Corporation is an open-end company registered as such under the
Investment  Company Act of 1940, as amended (the "1940 Act"),  with authority to
issue an aggregate amount of 2,000,000,000  shares of capital stock and to issue
the number of shares of stock of each class as follows:

         Money Market Fund..................................100,000,000
         Stock Fund.........................................500,000,000
         Bond Fund..........................................200,000,000
         Composite Fund.....................................150,000,000
         Equity Index Fund...................................75,000,000
         Short-Term Bond Fund................................50,000,000
         Mid-Term Bond Fund..................................75,000,000

      SECOND: All shares of the Corporation's  capital stock have a par value of
$.01 per share.  The aggregate par value of all the shares of all classes of the
Corporation's capital stock is Twenty Million Dollars ($20,000,000).

      THIRD:  The Board of Directors of the  Corporation,  acting in  accordance
with the  Corporation's  Articles of  Incorporation,  hereby designates that the
name of the Stock Fund be changed to the All America Fund, such change to become
effective upon the  Corporation's  Post-Effective  Amendment to its Registration
being declared effective by the Securities and Exchange Commission.

      FOURTH:  The newly  designated  shares of the All America Fund, shall have
the same  powers,  preferences  and  voting  or other  special  rights,  and the
qualifications,  restrictions  and  limitations  set forth in the  Corporation's
Articles of  Incorporation,  as amended,  and as required by the 1940 Act as the
previously designated shares of the Stock Fund.

      FIFTH:  The Board of Directors of the  Corporation,  acting in  accordance
with Section  2-105(c) of the General  Corporation Law of the State of Maryland,
hereby designates the following  additional class of the  Corporation's  capital
and  authorizes  the  issuance  of  shares  for  the  additional  class  of  the
Corporation's capital stock as follows:

                                          Number of Authorized Shares
                                          ---------------------------
Aggressive Equity Fund                            500,000,000


<PAGE>

      SIXTH:  All  of the  newly  authorized  shares  of  the  newly  designated
Aggressive  Equity Fund shall have the powers,  preferences  and voting or other
special rights, and the  qualifications,  restrictions and limitations set forth
in the Corporation's  Articles of Incorporation,  as amended, and as required by
the 1940 Act.

      SEVENTH:  All of the  newly  authorized  shares  of the  newly  designated
Aggressive Equity Fund shall have a par value of $.01 per share.

      EIGHTH:  The aggregate par value of all the shares of all classes,  before
the  occurrence of the events as set forth in Articles  Third,  Fourth and Fifth
was, and upon the occurrence of the events set forth in Articles  Third,  Fourth
and Fifth is, Twenty Million Dollars ($20,000,000).

      IN WITNESS WHEREOF,  MUTUAL OF AMERICA  INVESTMENT  CORPORATION has caused
these  presents  to be  signed  in its  name  and on its  behalf  by its  Senior
Executive Vice President and attested by its Secretary on April 5, 1994.

                                        MUTUAL OF AMERICA INVESTMENT
                                             CORPORATION

                                         By: /s/ Manfred Altstadt
                                            ------------------------------------
                                                 Manfred Altstadt
                                                 Senior Executive Vice President

Attest:

/s/ Stephanie J. Kopp
- --------------------------
    Stephanie J. Kopp
    Secretary

- --------------------------------------------------------------------------------

      THE  UNDERSIGNED,  Senior  Executive  Vice  President of Mutual of America
Investment Corporation, who executed on behalf of said corporation the foregoing
Articles  Supplementary,  of  which  this  certificate  is made a  part,  hereby
acknowledges,  in the name and on  behalf  of said  corporation,  the  foregoing
Articles  Supplementary  to be the corporate act of said corporation and further
certifies  that,  to the best of her  knowledge,  information  and  belief,  the
matters and facts set forth  therein with  respect to the  approval  thereof are
true in all material respects, under the penalties of perjury.

                                                       /s/ Manfred Altstadt
                                                    --------------------------
                                                           Manfred Altstadt
                                       2


                                                                    Exhibit 1(g)

                    MUTUAL OF AMERICA INVESTMENT CORPORATION

                      ARTICLES SUPPLEMENTARY TO THE CHARTER

      Mutual of America Investment  Corporation,  a Maryland  corporation having
its  principal   office  in   Baltimore,   Maryland   (hereinafter   called  the
"Corporation"),  hereby  certifies to the State  Department of  Assessments  and
Taxation of Maryland, that:

      FIRST: In accordance with Section 2-105(c) of Maryland General Corporation
Law, The Board of Directors of the  Corporation,  at a meeting duly convened and
held on April 11, 1995, adopted a resolution  increasing the aggregate number of
shares of capital stock, par value $.01 per share (the "Shares"), and the number
of Shares of certain  classes,  that the  Corporation is authorized to issue, as
follows:

      (i) The total  number of Shares of all classes  that the  Corporation  has
      authority  to  issue  were   2,000,000,000   before  the   increase,   and
      3,000,000,000 as increased.

      (ii) The number of shares of stock of each class are as follows,  subject,
      however,  to the authority granted in the Articles of Incorporation to the
      Board of Directors to change the  designation of any class and to increase
      or decrease any such number of shares:

                                  Before the Increase    As increased
                                  -------------------    ------------
Money Market Fund                     100,000,000        100,000,000 (no change)
All America Fund                      500,000,000        500,000,000 (no change)
Bond Fund                             200,000,000        250,000,000
Composite Fund                        150,000,000        200,000,000
Equity Index Fund                      75,000,000         75,000,000 (no change)
Short-Term Bond Fund                   50,000,000         50,000,000 (no change)
Mid-Term Bond Fund                     75,000,000         75,000,000 (no change)
Aggressive Equity Fund                500,000,000        500,000,000 (no change)

      The balance of undesignated shares may be issued by the Board of Directors
in such  initial  classes,  or any new class of classes,  each  comprising  such
number  of  shares  and  having  such   preferences,   rights,   voting  powers,
restrictions,  limitations  as  to  dividends,  qualifications,  and  terms  and
conditions of redemption as shall be fixed and  determined  from time to time by
resolution or  resolutions  providing for the issuance of such shares adopted by
the Board of  Directors,  to whom  authority to fix and determine the same is in
the Articles of Incorporation  expressly  granted  authority.  In addition,  the
Board of  Directors  is in the Articles of  Incorporation  expressly  granted to
change the  designation  of any class and to increase or decrease  the number of
shares  of any  class,  but the  number  of  shares  of any  class  shall not be
decreased  by the Board of  Directors  below the number of shares  thereof  then
outstanding.


<PAGE>

      SECOND: The par value of all Shares of the Corporation's  capital stock of
all classes,  before the  occurrence of events set forth in Articles  First was,
and upon the  occurrence of the events set forth in Article  First,  is $.01 per
share.

      THIRD: The aggregate par value of all Shares of the Corporation's  capital
stock of all classes  before the  occurrence  of the events set forth in Article
First was Twenty Million  Dollars  ($20,000,000)  and upon the occurrence of the
events set forth in Article First is Thirty Million Dollars ($30,000,000).

      FOURTH:  The  Corporation  is registered as an open-end  company under the
Investment Company Act of 1940.

      IN WITNESS WHEREOF,  MUTUAL OF AMERICA  INVESTMENT  CORPORATION has caused
these  articles to be signed in its name and on its behalf by its  President and
attested by its Secretary on April 13, 1995.

                                        MUTUAL OF AMERICA INVESTMENT CORPORATION

                                        By:  /s/  Dolores J. Morrissey
                                           ------------------------------------
                                                  Dolores J. Morrissey
                                                  President

Attest:

  /s/ Stephanie J. Kopp
- ---------------------------
Stephanie J. Kopp
     Secretary

- --------------------------------------------------------------------------------

      THE UNDERSIGNED,  President of Mutual of America  Investment  Corporation,
who executed on behalf of said corporation the foregoing Articles Supplementary,
of which this certificate is made a part, hereby  acknowledges,  in the name and
on behalf of said corporation,  the foregoing  Articles  Supplementary to be the
corporate act of said corporation and further certifies that, to the best of her
knowledge,  information and belief, the matters and facts set forth therein with
respect to the  approval  thereof are true in all material  respects,  under the
penalties of perjury.

                                                 /s/ Dolores J. Morrissey
                                             --------------------------------
                                                     Dolores J. Morrissey


                                                                    Exhibit 1(h)

                    MUTUAL OF AMERICA INVESTMENT CORPORATION

                      ARTICLES SUPPLEMENTARY TO THE CHARTER

Mutual  of  America  Investment   Corporation,   a  Maryland   corporation  (the
Corporation),  with its principal office c/o Corporation Trust Incorporated,  32
South  Street,  Baltimore,   Maryland  21202,  hereby  certifies  to  the  State
Department of Assessments and Taxation of Maryland that:

FIRST:  The total  number of shares of  capital  stock of all  classes  that the
Corporation  has authority to issue is three billion  (3,000,000,000)  shares of
common  stock,  par value $.01 per share,  with an aggregate par value of thirty
million dollars ($30,000,000).

SECOND:  Pursuant  to  authority  vested  in  the  Board  of  Directors  of  the
Corporation by Section 5.1 of the Articles of  Incorporation  of the Corporation
(the  Articles)  and a resolution  duly adopted by the Board of Directors at its
meeting held  September 16, 1997, the  authorized  shares  allocated to the Bond
Fund and Equity Index Fund are increased to the following:

                      Bond Fund           -   325,000,000
                      Equity Index Fund   -   150,000,000

The  relative   preferences,   conversion  and  other  rights,   voting  powers,
restrictions,   limitations  as  to  dividends,  qualifications  and  terms  and
conditions  of  redemption  of  each  such  class  are the  same  as for  shares
previously allocated to the Bond and Equity Index Funds.

IN WITNESS  WHEREOF,  the President of the Corporation has signed these Articles
Supplementary in the Corporation's  name and on its behalf and acknowledges that
these Articles Supplementary are the act of the Corporation,  and states that to
the best of her  knowledge,  information  and belief all  matters  and facts set
forth  therein  relating  to the  authorization  and  approval  of the  Articles
Supplementary  are true in all material respects and that this statement is made
under the penalties of perjury.

Date:  September 17, 1997

                                                     MUTUAL OF AMERICA
                                                     INVESTMENT CORPORATION

Attest:

                                                      /s/ Dolores J. Morrissey
                                                    ----------------------------
                                                          Dolores J. Morrissey

     /s/ Stanley M. Lenkowicz                             President and CEO
  ---------------------------------
         Stanley M. Lenkowicz
         Secretary

(seal)



                                                                    Exhibit 2(a)

                                     BY-LAWS

                                       OF

                    MUTUAL OF AMERICA INVESTMENT CORPORATION

                                    ARTICLE I

                                     OFFICES

      SECTION  1.1.  Principal  Office.  The  principal  office of the MUTUAL OF
AMERICA INVESTMENT CORPORATION (hereinafter referred to as the "Corporation") in
the State of Maryland shall be in the City of Baltimore, State of Maryland.

      SECTION 1.2. Other Offices.  The Corporation may also have offices at such
other  places  both  within and  without  the State of  Maryland as the Board of
Directors may from time to time determine or the business of the Corporation may
require, including without limitation offices at New York, New York.

                                   ARTICLE II

                                  SHAREHOLDERS

      SECTION 2.1. Place of Meetings.  Meetings of shareholders shall be held at
the  offices of the  Corporation  in the City of New York,  New York,  or at any
other place within the United States as shall be designated from time to time by
the Board of Directors and stated in the notice of meeting or in a duly executed
waiver of notice thereof.

      SECTION 2.2. Annual  Meetings.  Annual  Meetings of shareholders  shall be
held during the month of April, or at such later date and time as shall be fixed
annually by the Board of Directors  and stated in the notice of the meeting,  at
which the shareholders shall elect a Board of Directors and ratify or reject the
independent  public  accountants  selected for the current year and may transact
any other business  within the powers of the  Corporation  and properly  brought
before the meeting.  Any business of the  Corporation  may be  transacted at the
Annual Meeting  without being  specially  designated in the notice,  except such
business as is specifically required by statute to be stated in the notice.


<PAGE>

      SECTION 2.3. Special Meetings. Special meetings of the shareholders may be
called  by the Board of  Directors  or by the  Chairman  of the  Board.  Special
meetings  of  shareholders  shall be called by the  Secretary  upon the  written
request of holders of shares entitled to cast not less than twenty-five per cent
of all the votes  entitled to be cast at such meeting.  Such request shall state
the purpose or purposes of such meeting and the matters  proposed to be acted on
thereat.  The  Secretary  shall  inform  such  requesting  shareholders  of  the
reasonably  estimated  cost of preparing  and mailing such notice of the meeting
and, upon payment to the  Corporation  of such costs,  the Secretary  shall give
notice  stating  the  purpose or  purposes  of the  meeting to all  shareholders
entitled  to  notice  of such  meeting.  No  special  meeting  need be called to
consider  any matter which is  substantially  the same as a matter voted upon at
any special meeting of the shareholders  held during the preceding twelve months
unless  requested  by the  holders of shares  entitled to cast a majority of all
votes entitled to be cast as such meeting.

      SECTION  2.4.  Notice  and  Purpose.  Not less than ten (10) nor more than
ninety (90) days before the date of every shareholders'  meeting,  the Secretary
shall give to each  shareholders  entitled  to vote at such  meeting and to each
shareholder  not entitled to vote who is entitled by statute to notice,  written
or printed  notice  stating the time and place of the meeting and the purpose or
purposes for which the meeting is called, whether by mail or by presenting it to
him or her personally or by leaving it at his or her residence or usual place of
business.  If mailed,  such notice shall be deemed to be given when deposited in
the United States mail addressed to the  shareholder  at his or her  post-office
address as it appears on the records of the  Corporation,  with postage  thereon
prepaid.  Business  transacted at any special meeting of  shareholders,  but not
annual meetings, shall be limited to the purposes stated in the notice.

      SECTION 2.5.  Record Date.  The Board of Directors may fix, in advance,  a
date as the record date for the purpose of determining  shareholders entitled to
notice  of,  or to vote at,  any  meeting  of  shareholders  or any  adjournment
thereof,  or entitled to receive payment of any dividend or the allotment of any
rights, or in order to make a determination of shareholders for any other proper
purpose.  Such date in any case shall be not more than ninety (90) days,  and in
case of a meeting of  shareholders,  not less than ten (10)  days,  prior to the
date on which the particular action requiring such determination of shareholders
is to be taken.

      SECTION 2.6.  Quorum.  The holders of a majority of the shares entitled to
vote,  represented in person or by proxy, shall constitute a quorum at a meeting
of the  shareholders,  but,  if a quorum is not  represented,  a majority of the
shareholders  present in person or  represented by proxy may adjourn the meeting
from time to time, without notice other than announcement at the meeting,  until
a quorum shall be present or represented.  At such adjourned meeting, at which a
quorum shall be present or  represented,  any business may be  transacted  which
might have been transacted at the meeting as originally notified.


                                      -2-
<PAGE>

      SECTION 2.7.  Voting.  Any holder on the record of the shareholders of the
Corporation  as of the record  date  determined  pursuant  to Section 2.5 herein
shall  be  entitled  to  vote  to  the  extent   provided  in  the  Articles  of
Incorporation,  as they may be amended from time to time, either in person or by
proxy  executed  in  writing  by him or  her  or by his or her  duly  authorized
attorney-in-fact.  Any holder of fractional shares of the Corporation shall have
proportionally the same voting rights as are provided for a full share. No proxy
shall be valid after eleven months from the date of execution,  unless otherwise
provided in the proxy.  Each proxy shall be revocable unless expressly  provided
therein  to be  irrevocable  or unless so  otherwise  made  irrevocable  by law.
Proxies shall be delivered to the Secretary of the Corporation  before or at the
time of such  meeting.  The vote of the  holders  of a  majority  of the  shares
entitled to vote and present in person or  represented  by proxy at a meeting at
which a quorum is present shall be the act of the shareholders  meeting,  unless
the vote of a greater  number is required by law, the Articles of  Incorporation
or these By-laws.

      SECTION 2.8. The Chairman of the Board and the Secretary.  The Chairman of
the Board or such  individual as the Chairman shall  designate  shall preside at
and the Secretary shall keep the records of each meeting of shareholders, and in
the absence of either  individual,  his or her duties shall be performed by some
person appointed at the meeting.

      SECTION 2.9.  Order of Business.  The business shall be transacted in such
order as the Chairman of the Board shall determine.

      SECTION 2.10.  Conduct of Meetings.  At all meetings of the  shareholders,
all proxies  shall be received  and taken in charge of and all ballots  shall be
received and  canvassed by the  Chairman of the  meetings,  who shall decide all
questions touching the qualification of voters, the validity of the proxies, and
the acceptance or rejection of votes,  unless  Inspectors of Election shall have
been  appointed as follows,  in which event,  such  Inspectors of Election shall
decide all such questions.

      At any meeting of shareholders  at which Directors are to be elected,  the
Board of  Directors  prior  thereto  may,  or, if they  have not so  acted,  the
Chairman of the meeting  may, and upon the request of the holders of ten percent
(10%)  of the  stock  entitled  to vote  at  such  meeting  shall,  appoint  two
Inspectors  of Election  who shall first  subscribe  an oath or  affirmation  to
execute  faithfully  the  duties of  Inspectors  at such  election  with  strict
impartiality  and  according to the best of their  ability,  and shall after the
election  make a certificate  of the result of the vote taken.  No candidate for
the office of Director shall be appointed such Inspector.


                                      -3-
<PAGE>

      The  Chairman  of the  meeting may cause a vote by ballot to be taken upon
any  election  or matter,  and such vote shall be taken upon the  request of the
holders of ten percent  (10%) of the stock  entitled to vote on such election or
matter.

                                   ARTICLE III

                                    DIRECTORS

      SECTION 3.1. General Powers.  The business and property of the Corporation
shall be managed under the  direction of its Board of Directors,  and subject to
the restrictions  imposed by law, by the Articles of Incorporation,  or by these
By-laws, they shall exercise all the powers of the Corporation.

      SECTION 3.2.  Delegation.  To the extent permitted by law, by the Articles
of Incorporation or these By-laws,  the Board of Directors may delegate the duty
of  management  of the  Corporation's  assets  and such  other of its powers and
duties (a) to an  Executive  Committee  or other  committees,  or (b) to another
party to act as manager, investment adviser or underwriter pursuant to a written
contract or  contracts to be approved in the manner  required by the  Investment
Company Act of 1940 (the "1940 Act").

      SECTION  3.3.  Number.  The Board of  Directors  shall  consist of six (6)
directors,  but the number of directors may be increased or decreased  (provided
such decrease does not shorten the term of any incumbent  director) from time to
time by the Board of Directors by  amendment of the By-laws,  provided  that the
number of directors  shall not be more then  twenty-one (21) nor less than three
(3).

      SECTION 3.4. Election,  Resignations,  Term of Office and Vacancies. Until
the first meeting of shareholders or until their successors are duly elected and
qualified,  the Board of Directors shall consist of the persons named as such in
the Articles of  Incorporation.  The  directors  shall be elected at each annual
meeting  of  shareholders  and may be elected  at any  meeting of  shareholders.
Cumulative voting is not permitted. Directors need not be residents of the State
of Maryland or shareholders of the Corporation.  Each director, unless he or she
sooner  resigns,  dies or is removed,  shall hold  office  until the next annual
meeting and until the successor is duly elected and duly qualified. Any director
may  resign  his or her  office at any time by  delivering  the  resignation  in
writing to the Corporation. The acceptance of such resignation,  unless required
by the terms thereof, shall not be necessary to make such resignation effective.
Subject  to  compliance  with  Section  10(e)  and  16(a) of the 1940  Act,  any
vacancies  occurring  in the  Board of  Directors  other  than by  reason  of an
increase  in the  number  of  directors  within  30 days,  may be  filled by the
affirmative  vote of a majority  of the  remaining  directors,  even though such
majority is less than a quorum.  A director elected by the Board of Directors to
fill a vacancy shall be elected for the unexpired term of his


                                      -4-
<PAGE>

or her predecessor in office. If a special meeting of shareholder is required to
fill a vacancy,  the meeting shall be held within sixty (60) days or such longer
period as may be permitted by the Securities and Exchange Commission.

      SECTION 3.5.  Place of Meeting.  Meetings of the Board of Directors may be
held within or without the State of Maryland,  at whatever place is specified by
the officer calling the meeting. In the absence of a specific place designation,
the meeting  shall be held at the office of the  Corporation  in the City of New
York, New York.

      Subject  to any  limitations  of the 1940  Act,  members  of the  Board of
Directors or a committee of the Board may participate in a meeting by means of a
conference  telephone  or similar  communications  equipment  provided  that all
persons  participating  in the  meeting  can hear each  other at the same  time.
Participation  in a meeting by these  means  shall  constitute  presence  at the
meeting.

      SECTION 3.6.  Organization and Regular Meetings.  Each newly elected Board
of Directors may hold its first meeting for the purpose of organization  and the
transaction  of  business,  if a quorum is present,  immediately  following  the
annual meeting of the shareholders,  at the place of such meeting.  No notice of
such first  meeting  need be given to either old or new  members of the Board of
Directors.  Regular meetings may be held at such other times and places as shall
be  designated  by the Board of  Directors,  and notice of such regular  meeting
shall not be required.

      SECTION 3.7. Special Meetings.  Special meetings of the Board of Directors
may be held at any time  upon  the call of the  Chairman  of the  Board,  or the
President, or any two (2) directors of the Corporation. The Secretary shall give
notice of such special meeting by mailing the same at least three (3) days or by
sending by cable, radio or telegraph or delivering personally or telephoning the
same at least one (1) day before the  meeting  to each  director.  Notice of the
time,  place,  and  purpose of such  meeting  may be waived in  accordance  with
Article VIII of these  By-laws.  Attendance  of a director at such meeting shall
also constitute a waiver of notice  thereof,  except where he or she attends for
the  announced  purpose of objecting to the  transaction  of any business on the
ground that the meeting is not lawfully called or convened.  Except as otherwise
herein provided,  neither the business to be transacted at, nor the purpose of ,
any regular or special  meeting of the Board of  Directors  need be specified in
the notice or waiver of notice of such meeting.

      SECTION 3.8.  Chairman of the Board.  The Chairman of the Board shall be a
member of the Board of Directors,  and shall be chosen  annually by the Board of
Directors at its first meeting after each annual meeting of the shareholders.

      The  Chairman  of the  Board  or such  individual  as the  Chairman  shall
designate  shall preside at meetings of the Board of Directors.  He or she shall
have such other


                                      -5-
<PAGE>

powers as are usually incident o the position of Chairman of the Board and shall
exercise such other  specific  powers as the Board of Directors may from time to
time assign him or her.

      SECTION  3.9.  Quorum and Manner of  Acting.  A majority  of the number of
directors fixed by these By-laws as from time to time amended shall constitute a
quorum for the transaction of business, but a small number may adjourn from time
to time until they can secure the attendance of a quorum.  The act of a majority
of the  directors  present at any meeting at which a quorum is present  shall be
the act of the Board of Directors,  except as otherwise expressly required under
the  provisions  of the 1940 Act, or where a larger vote is required by law, the
Articles of  Incorporation  or these By-laws.  Any regular or special meeting of
the Board of  Directors  may be  adjourned  from time to time by those  present,
whether a quorum is present or not.

      SECTION  3.10.  Removal of  Directors.  Any  director  may be removed from
office,  either  for or  without  cause,  at any  annual or  special  meeting of
shareholders  by the affirmative  vote of a majority of the  outstanding  shares
entitled to vote for the election of directors.  The notice calling such meeting
shall give notice of the intention to act upon such matter, and if the notice so
provides,  the vacancy  caused by such  removal may be filled at such meeting by
vote of a majority of the shares  represented  at such  meeting and  entitled to
vote for the election of directors.

      SECTION 3.11.  Informal Action by Directors.  Subject to the provisions of
the 1940 Act, any action  permitted or required by law,  these By-laws or by the
Articles of  Incorporation to be taken at a meeting of the Board of Directors or
any committee  may be taken  without a meeting if a consent in writing,  setting
forth  the  action  so  taken,  is  signed  by all the  members  of the Board of
Directors or such  committee,  as the case may be. Such  consent  shall have the
same force and  effect as a  unanimous  vote at a meeting,  and may be stated as
such in any document or instrument.

      SECTION  3.12.  Compensation  of  Directors.  The Board of  Directors  may
authorize  reasonable  compensation to Directors for their services as Directors
and as members of  committees  of the Board of Directors  and may  authorize the
reimbursement  of reasonable  expenses  incurred by Directors in connection with
rendering those services.

                                   ARTICLE IV

                                   COMMITTEES

      SECTION 4.1. Executive Committee.  The Board may, by resolution adopted by
a majority of the entire Board,  designate an Executive Committee  consisting of
the Chairman of the Board and one or more of the  directors of the  Corporation,
and


                                      -6-
<PAGE>

may  delegate  to such  Executive  Committee  any of the  powers of the Board of
Directors except:

      a.    the power to declare dividends or distribution on stock;

      b.    the power to recommend to the shareholders any action which requires
            shareholder approval;

      c.    the power to amend or repeal By-laws ore adopt new By-laws;

      d.    the power to  approve  any merger or share  exchange  which does not
            require shareholder approval; or

      e.    the power to issue stock, except as hereafter provided.

If the Board of Directors  has given general  authorization  for the issuance of
stock of any  class,  the  Executive  Committee,  in  accordance  with a general
formula or method specified by the Board of Directors by resolution, may fix the
terms of such  class and the terms on which  any  stock  may be  issued,  to the
extent permitted by law and the Articles of Incorporation.

      The Executive  Committee shall keep written minutes of its proceedings and
shall report such minutes to the Board. All such proceedings shall be subject to
revision or alteration by the Board; provided, however, that third parties shall
not be prejudiced by such revision or alteration.

      SECTION 4.2. Other  Committees.  The Board of Directors may, by resolution
or resolutions adopted by a majority of the entire Board,  designate one or more
committees,  each  committee  to consist of two or more of the  directors of the
Corporation, which committee shall have and may exercise the powers of the Board
of Directors in the management of the business and affairs of the Corporation to
the extent provided in said  resolution or  resolutions,  except where action of
the Board of Directors is specified by law. Such  committee or committees  shall
have such  name or names as may be  determined  from time to time by  resolution
adopted by the Board of Directors.  The Board of Directors  shall have the power
at any time to fill  vacancies in, to change the size or  membership  of, and to
discharge any such committees.

      SECTION 4.3. General. A committee shall fix its own rules of procedure not
inconsistent  with  these  By-laws  and  with  any  directions  of the  Board of
Directors.  It shall meet at such times and places and upon such notice as shall
be  provided  by such  rules or by  resolution  of the Board of  Directors.  The
presence  of a  majority  shall


                                      -7-
<PAGE>

constitute  a quorum  for the  transaction  of  business,  and in every  case an
affirmative vote of a majority of the members of the committee  present shall be
necessary for the taking of any action.  A committee  shall keep regular minutes
of its proceedings and report the same to the Board of Directors when required.

                                    ARTICLE V

                                    OFFICERS

      SECTION 5.1.  Number.  The officers of the Corporation  shall be chosen by
the Board of  Directors  and shall be a Chairman  and Chief  Executive  Officer,
President,  a  Secretary,  a  Treasurer  and  Chief  Financial  Officer,  and  a
Controller and Chief Accounting Officer.  The Board of Directors may also choose
a Vice President or additional Vice Presidents,  Assistant Vice Presidents,  and
one or more Assistant Secretaries and Assistant Treasurers.

      SECTION  5.2.  Selection.  At its first  meeting and at its first  meeting
after each annual meeting of shareholders, the Board of Directors shall choose a
Chairman and Chief Executive Officer, a President,  a Secretary, a Treasurer and
Chief Financial Officer, and a Controller and Chief Accounting Officer,  none of
whom need be a member of the Board. Any two or more offices,  except the offices
of President and Vice President,  may be held by the same person, but no officer
shall execute, acknowledge or verify any instrument in more than one capacity if
such  instrument  is required by law,  the  Articles of  Incorporation  or these
By-laws to be executed, acknowledged or verified by two or more officers.

      SECTION 5.3. Term of Office.  The officers of the  Corporation  shall hold
office until their successors are chosen and qualified. Any vacancy occurring in
any office of the Corporation shall be filled by the Board of Directors.

      SECTION  5.4.  Selection  of  Other  Officers  and  Agents.  The  Board of
Directors may appoint such other officers and agents as it shall deem necessary,
who shall hold their  offices for such terms and shall  exercise such powers and
perform  such  duties as shall be  determined  from time to time by the Board of
Directors.  If they so deem,  the Board of Directors  may delegate this power to
appoint other officers and agents to the Chairman of the Board.

      SECTION  5.5.  Salaries.  The  salaries of all  officers and agents of the
Corporation shall be fixed by the Board of Directors. If they so deem, the Board
of  Directors  may delegate  this power to set salary  levels of all officer and
agent to the Chairman of the Board.


                                      -8-
<PAGE>

      SECTION  5.6.  Removal.  Any  officer or agent of the  Corporation  may be
removed  during his term by a majority vote of the Board of Directors  whenever,
in its  judgment,  removal of such person  would serve the best  interest of the
Corporation.  Such removal shall terminate all of such person's  authority as an
officer or agent,  but his right to salary and any contract  rights shall depend
on the terms of his employment and the circumstances of his removal. Election or
appointment of an officer or agent shall not of itself create  contract  rights.
If they so deem, the Board of Directors may delegate this power to remove agents
and  employees  under  their  control  to  the  Chairman  of  the  Board  of the
Corporation.

      SECTION 5.7.  Chairman of the Board. The Chairman of the Board shall, when
present,  preside  at all  meetings  of the  shareholders  and of the  Board  of
Directors. Subject to the control of the Board of Directors, the Chairman of the
Board shall be the chief executive  officer of the Corporation.  He shall assume
general and active management of the business of the Corporation and general and
active supervision and direction over the other officers,  agents, and employees
of the Corporation and shall see that their duties are properly  performed.  The
foregoing  shall not  apply to any  responsibilities  delegated  by the Board of
Directors to a Manager, investment adviser, underwriter,  custodian, or transfer
agent pursuant to any written contract.

      The Chairman of the Board,  either alone or (if as required by law,  these
By-laws or the Board of  Directors)  with the  Secretary or any other officer of
the Corporation so authorized by the Board of Directors,  may sign  certificates
of shares of the Corporation or any deeds, mortgages,  bonds, contracts or other
instruments  that the Board of Directors has authorized  for  execution,  except
when the signing and execution thereof shall be expressly delegated by the Board
of  Directors  or by  these  By-laws  to some  other  officer  or  agent  of the
Corporation or shall be required by law to be otherwise signed or executed.

      The Chairman of the Board,  in conjunction  with the  Secretary,  may duly
authenticate the Corporation's  records or copies thereof for use as evidence in
any action or proceeding to which the Corporation may be a party.

      In general, the Chairman of the Board shall perform all duties incident to
the  office  of the  Chairman  of the  Board  and such  other  duties  as may be
prescribed by the Board of Directors from time to time.

      SECTION 5.8. President.  Subject to the control of the Board of Directors,
the  President  shall be the chief  operating  officer  of the  Corporation.  In
absence of the  President  or in the event of he death,  inability or refusal to
act or in the event for any other reason, it shall become  impracticable for the
President to act personally,  the Chairman of the Board shall perform the duties
of the  President  and when so  acting  shall  have all of the  powers of and be
subject to all of the restrictions upon the President.


                                      -9-
<PAGE>

      The  President,  either along or (if as required by law,  these By-laws or
the  Board  of  Directors)  with  the  Secretary  or any  other  officer  of the
Corporation so authorized by the Board of Directors,  may sign  certificates  of
shares of the  Corporation or any deeds,  mortgages,  bonds,  contracts or other
instruments  that the Board of Directors has authorized  for  execution,  except
when the signing and execution thereof shall be expressly delegated by the Board
of  Directors  or by  these  By-laws  to some  other  officer  or  agent  of the
Corporation or shall be required by law to be otherwise signed or executed.

      The President,  in conjunction with the Secretary,  may duly  authenticate
the Corporation's records or copies thereof for use as evidence in any action or
proceeding to which the Corporation may be a party.

      In general,  the President shall perform all duties incident to the office
of  President  and  such  other  duties  as may be  prescribed  by the  Board of
Directors from time to time.

      SECTION 5.9. The Vice President.  The Vice President, or if there shall be
more than one,  the Vice  Presidents  in the  order  determined  by the Board of
Directors,  shall be vested with all the powers and  required to perform all the
duties of the President in his absence or disability or refusal to act, and when
so acting  shall have all the  powers of and be subject to all the  restrictions
upon the President. Each Vice President shall perform such other duties and have
such  other  power as  Chairman  of the  Board,  the  President  or the Board of
Directors may from time to time prescribe.

      SECTION  5.10.  The Secretary  and  Assistant  Secretaries.  Except as may
otherwise  be  provided  by  the  Board  of  Directors,  the  Secretary  of  the
Corporation shall have the following powers and duties:

      a.    to keep the minutes of the meetings of shareholders, of the Board of
            Directors,  and any committee  thereof in one or more books provided
            for that purpose;

      b.    to see that all  notices are duly given,  in  accordance  with these
            By-laws or as required by law;

      c.    to be  custodian  of the  corporate  records  and  the  seal  of the
            Corporation;

      d.    to see that the seal of the Corporation is affirmed to all documents
            duly   authorized  for  execution   under  seal  on  behalf  of  the
            Corporation;


                                      -10-
<PAGE>

      e.    to keep or cause to be kept for the  Corporation  the  stock  ledger
            described in Section 9.1 of these By-laws;

      f.    to  countersign  certificates  for  shares of the  Corporation,  the
            issuance of which have been authorized by resolution of the Board of
            Directors;

      g.    to  have  general   charge  of  the  stock  transfer  books  of  the
            Corporation;

      h.    to  duly  authenticate,  in  conjunction  with  the  President,  the
            Corporation's  records or copies  thereof to be used as  evidence in
            any action or proceedings to which the  Corporation  may be a party;
            and

      i.    to perform all duties incidental to the office of Secretary and such
            other duties as, from time to time, may be assigned to the Secretary
            by the Chairman of the Board, the President or Board of Directors.

The  Assistant  Secretary,  or  if  there  are  more  than  one,  the  Assistant
Secretaries  in the order  determined by the Board of Directors,  shall,  in the
absence or refusal to act or disability of the Secretary, perform the duties and
exercise the power of the Secretary and shall perform such other duties as, from
time to time, may be assigned by the Chairman of the Board, the Secretary or the
Board of Directors.

      SECTION 5.11. The Treasurer and Chief Financial  Officer,  the Controller,
and  Assistant  Treasurers.  Except as may otherwise be provided by the Board of
Directors the Treasurer and Chief Financial Officer shall:

      a.    have charge and custody of, and be  responsible  for,  all the funds
            and   securities  of  the   Corporation,   except  those  which  the
            Corporation  has placed in the  custody  of a bank or trust  company
            pursuant  to a  written  agreement  designating  such  bank or trust
            company as custodian of the property of the Corporation;

      b.    keep full and accurate accounts of the receipts and disbursements in
            books belonging to the Corporation;

      c.    cause all monies and other  valuables  to be deposited to the credit
            of the Corporation;

      d.    receive,  and give  receipts  for,  monies  due and  payable  to the
            Corporation from any source whatsoever;


                                      -11-
<PAGE>

      e.    disburse the funds of the  Corporation  and supervise the investment
            of its funds as ordered or  authorized  by the Board,  taking proper
            vouchers therefore; and

      f.    in  general,  perform  all the  duties  incident  to the  office  of
            Treasurer and such other duties as from time to time may be assigned
            to him by the Chairman of the Board, the President,  or the Board of
            Directors.

The  controller  shall  perform  such  duties and  exercise  such  powers of the
Treasurer as may be assigned by the Chairman of the Board,  the  President,  the
Treasurer or the Board of Directors.  The Assistant  Treasurer,  or if there are
more than one, the Assistant  Treasurers in the order determined by the Board of
Directors,  shall,  in the  absence  or  refusal  to act  or  disability  of the
Treasurer, perform the duties and exercise the powers of the Treasurer and shall
perform  such  other  duties  as,  from  time to time,  may be  assigned  by the
President, the Treasurer or the Board of Directors.

      SECTION 5.12. Other Subordinate  Officers.  Other subordinate officers and
agents  appointed  by the Board of  Directors  shall  exercise  such  powers and
perform  such  duties as may be  assigned  by the  Chairman  of the  Board,  the
President or may be delegated to them by the resolution  appointing  them, or by
subsequent resolutions adopted from time to time by the Board of Directors.

      SECTION  5.13.  Bonding.  The Board of Directors  may require any officer,
agent or employee to give bond for the  faithful  discharge of his or her duties
and for the  protection of the  Corporation  in such sum and with such surety or
sureties as the Board may deem available.

                                   ARTICLE VI

                        TRANSACTIONS WITH RELATED PARTIES

      SECTION 6.1. To the extent  permitted by law and by the provisions of this
Article VI, any director, officer or employee,  individually, or any partnership
of which any director,  officer or employee may be a member,  or any corporation
or  association  of which any  director,  officer or employee may be an officer,
director,  trustee,  employee  or  shareholder,  may be a  party  to , or may be
pecuniary  or  otherwise  interested  in , any  contract or  transaction  of the
Corporation,  and in the absence of fraud no contract or other transaction shall
be thereby  affected or  invalidated;  provided  that in case a  director,  or a
partnership,  corporation  or  association  of  which a  director  is a  member,
officer, director, trustee, employee or shareholder, is so interested, such fact
shall be  disclosed  or shall  have been  known to the Board of  Directors  or a
majority  thereof;  and any director of the  Corporation who is so interested or
who is also a director,  officer,


                                      -12-
<PAGE>

trustee, employee or shareholder of such other corporation or association,  or a
member of such partnership which is so interested, may be counted in determining
the  existence  of a quorum  at any  meeting  of the Board of  Directors  of the
Corporation  which shall  authorize any such contract or  transaction  with like
force  and  effect  as if he or she were not such  director,  officer,  trustee,
employee or shareholder of such corporation or association, or not so interested
or a member of a partnership so interested, or so interested individually.

      SECTION 6.2.  Nothing herein contained shall protect or purport to protect
any  director  or  officer  of the  Corporation  against  any  liability  to the
Corporation  or its  security  holders  to which he or she  would  otherwise  be
subject  by  reason  of  his  or  her  willful  misfeasance,  bad  faith,  gross
negligence,  or reckless  disregard of the duties involved in the conduct of his
or her office.

                                   ARTICLE VII

                                 INDEMNIFICATION

      SECTION  7.1.  Indemnification.  The  indemnification  set  forth  in this
Article shall be to the maximum extent  permitted by Maryland law,  subject only
to any limitations imposed by federal securities law.

      SECTION 7.2.  Non-Derivative  Actions. The Corporation shall indemnify any
person  who was or is a  party,  or is  threatened  to be made a  party,  to any
threatened,  pending or completed  action,  suit or  proceeding,  whether civil,
criminal,  administrative  or  investigative  (other than an action by or in the
right of the  Corporation),  by  reason  of the fact  that he or she is or was a
director, officer, agent or employee of the Corporation, or is or was serving at
the request of the Corporation as a director or officer of another  corporation,
partnership,   joint  venture,  trust  or  other  enterprise,  against  expenses
(including  attorneys'  fees),  judgments,  fines and amounts paid in settlement
actually and reasonably  incurred by him or her in connection  with such action,
suit or  proceeding  not  arising by reason of willful  misfeasance,  bad faith,
gross negligence, or reckless disregard of duties ("disabling conduct").

      SECTION 7.3.  Derivative  Actions.  The  Corporation  shall  indemnify any
person  who was or is a  party,  or is  threatened  to be made a  party,  to any
threatened,  pending or completion action, suit or proceeding by or in the right
of the Corporation to procure a judgment in its favor by reason of the fact that
the or she is or was a director,  officer, agent or employee of the Corporation,
or is or was serving at the request of the  Corporation as a director or officer
of another corporation,  partnership,  joint venture,  trust or other enterprise
against expense (including  attorneys' fees) actually and reasonably incurred by
him or her in  connection  with the defense or settlement of such action or suit
not arising by reason of disabling conduct.


                                      -13-
<PAGE>

      SECTION 7.4. Required  Indemnification. To the extent that a person who is
or was a  director,  officer,  agent or  employee  of the  Corporation  has been
successful  on the  merits in  defense  of any claim of  liability  by reason of
disabling conduct,  he or she shall be indemnified  against expenses  (including
attorneys'  fees) actually and  reasonably  incurred by him or her in connection
therewith.

      SECTION 7.5. Determination.  Any indemnification under Section 7.1 and 7.2
(unless ordered by a court) shall be made by the Corporation  only as authorized
in the specific case upon a determination,  based on a review of the facts, that
indemnification  of the  director,  officer,  agent  employee  is  proper in the
circumstances  because he or she has met the applicable  standard of conduct set
forth in Sections 7.2 and 7.3. Such  determination  shall be made (1) by a final
decision on the merits by a court or other body before whom the  proceeding  was
brought that the person to be indemnified  was not liable by reason of disabling
conduct, or (2) in the absence of such a decision by the Board of Directors by a
majority  vote of a quorum  consisting of  disinterested  directors who were not
parties to such action, suit or proceeding ("disinterested nonparty directors"),
or (3) if such a quorum is not obtainable  or, even if  obtainable,  a quorum of
disinterested  non-party  directors so direct, by independent legal counsel in a
written opinion.

      SECTION 7.6.  Advance Payment.  Expenses  incurred in defending a civil or
criminal action, suit or proceeding may be paid by the Corporation in advance of
the final  disposition  of such action,  suit or proceeding as authorized by the
Board of Directors in the specific case upon receipt of an  undertaking by or on
behalf of the director,  officer,  agent or employee to repay such amount unless
it shall  ultimately be determined  that he or she is entitled to be indemnified
by the  Corporation as authorized in this Article VII,  provided that either (1)
the person to be indemnified provides a security for his or her undertaking;  or
(2) the  Corporation  is insured  against  losses  arising by reason of any such
lawful advances;  or (3) a majority of a quorum of the  disinterested  non-party
directors,  or an independent  legal counsel in a written  opinion,  determines,
based on a review of  readily-available  facts (as opposed to a full  trial-type
inquiry),  that  there is reason to believe  that the  person to be  indemnified
ultimately will be found entitled to indemnification.

      SECTION 7.7  Non-Exclusive  Right.  The  indemnification  provided by this
Article VII shall not be deemed  exclusive of any other rights to which a person
seeking   indemnification   may  be  entitled  under  any  agreement,   vote  of
shareholders or disinterested directors, or otherwise,  both as to action in his
or her official capacity and as to action in another capacity while holding such
office,  and shall  continue  as to a person  who has  ceased to be a  director,
officer,  agent or  employee  and  shall  inure  to the  benefit  of the  heirs,
executors and administrators of such a person.


                                      -14-
<PAGE>

      SECTION  7.8.  Insurance.   The  Corporation  may  purchase  and  maintain
insurance  on its behalf  and on behalf of any person who is or was a  director,
officer,  agent or  employee  of the  Corporation,  or is or was  serving at the
request  of the  Corporation  as a director  or officer of another  corporation,
partnership,  joint  venture,  trust or other  enterprise  against any liability
asserted against him or her and incurred by him or her in any such capacity,  or
arising out of his or her status as such, but not arising by reason of disabling
conduct.

                                  ARTICLE VIII

                                WAIVERS OF NOTICE

      Whenever,  under the provisions of any law, the Articles of  Incorporation
or amendments thereto,  or these By-laws,  any notice is required to be given to
any  shareholder,  director or  committee  member,  a waiver  thereof in writing
signed by the person or persons entitled to such notice, whether before or after
the time stated  therein,  as well as  attendance at the meeting in person or by
proxy,  shall be  equivalent  to the  giving of such  notice.  Waivers  given by
telegram, radiogram, cablegram or other such form of rapid transmission shall be
deemed waivers in writing within the meaning of these By-laws.

                                   ARTICLE IX

                                 CAPITAL STOCK

      SECTION 9.1.  Stock  Ledger and Record of  Shareholders.  The  Corporation
shall  maintain  at its  offices  in the  City of New  York,  New York or at the
offices of a transfer agent, if one is appointed, an original or duplicate stock
ledger  containing the names and address of all  shareholders  and the number of
shares of each class held by each  shareholder,  and, if a certificate  has been
issued, the certificate  number, date of issue and whether it was original issue
or by transfer.  The Board of Directors of the Corporation may appoint on one or
more  transfer  agents of the stock of the  Corporation.  Unless  and until such
appointment is made, the Secretary of the  Corporation  shall maintain the stock
ledger.  The names of  shareholders  as they appear on the stock ledger shall be
the official list of shareholders of record of the Corporation for all purposes.
The Corporation shall be entitled to treat the holder of record of any shares of
the Corporation as the owner thereof for all purposes, and shall not be bound to
recognize  any  equitable  or other claim to, or interest in, such shares or any
rights  deriving from such shares,  on the part of any other  person,  including
(but without limitation) a purchaser,  assignee or transferee,  unless and until
such other person  becomes the holder of record of such  shares,  whether or not
the Corporation shall have either actual or constructive  notice of


                                      -15-
<PAGE>

the interest of such other person,  except as otherwise  provided by the federal
securities laws or the laws of Maryland.

      SECTION 9.2.  Transfers of Shares.  The shares of the Corporation shall be
transferable on the stock  certificate books of the Corporation upon appropriate
authorization  in person by the  holder  of record  thereof,  or his or her duly
authorized attorney or legal  representative,  and, if a certificate was issued,
upon  endorsement  and surrender for  cancellation  of the  certificate  of such
shares. All certificates  surrendered for transfer shall be canceled, and no new
certificates  shall be issued to the  transferee  until a former  certificate or
certificates  for a like  number  of shares  shall  have  been  surrendered  and
canceled, except that in the case of a lost, destroyed or mutilated certificate,
a new certificate may be issued therefor upon such conditions for the protection
of the  Corporation  and any transfer  agent of the  Corporation as the Board of
Directors may prescribe.

                                    ARTICLE X

                                    CUSTODIAN

      SECTION 10.1. Employment of Custodian. All assets of the Corporation shall
be  held  by  one or  more  custodian  banks  or  trust  companies  meeting  the
requirements  of the 1940 Act, as the Board of  Directors  may from time to time
determine,  each of which custodians  shall have capital,  surplus and undivided
profits of not less than  $2,000,000  and may be  registered  in the name of the
Corporation,  including a designation of a particular class to which such assets
belong, or any such custodian,  or a nominee of either of them. The terms of any
custodian  agreement shall be determined by the Board of Directors,  which terms
shall be in  accordance  with the  provisions of the 1940 Act. If so directed by
vote of the  holders of a majority  of the  outstanding  shares of a  particular
class or by vote of the Board of Directors, in accordance with the provisions of
the 1940 Act, the custodian of the assets  belonging to such class shall deliver
and pay over such assets as specified in such vote.

      Subject  to such  rules,  regulations  and  orders as the  Securities  and
Exchange Commission may adopt, the Corporation may direct a custodian to deposit
all or any part of the securities  owned by the  Corporation in a system for the
central handling of securities  established by a national securities exchange of
a national  securities  association  registered with the Securities and Exchange
Commission,  or otherwise  in  accordance  with the 1940 Act,  pursuant to which
system all securities of any particular class of any issuer deposited within the
system are treated as fungible and may be  transferred or pledged by bookkeeping
entry  without  physical  delivery of such  securities,  provided  that all such
deposits shall be subject to withdrawal  only upon the order of the  Corporation
or a custodian.


                                      -16-
<PAGE>

                                   ARTICLE XI

                                  MISCELLANEOUS

      SECTION 11.1.  Fiscal Year.  Unless  otherwise  determined by the Board of
Directors,  the fiscal year of the Corporation shall begin on January 1, and end
on December 31, in each year.

      SECTION 11.2.  Seal. The corporate  seal shall have inscribed  thereon the
name of the  Corporation,  the year of its organization and the words "Corporate
Seal, Maryland". The seal may be used by causing it or a facsimile thereof to be
impressed or affixed or reproduced or otherwise.

      SECTION 11.3.  Annual  Report.  The Chairman of the Board,  President or a
Vice President or the Treasurer shall prepare or cause to be prepared annually a
full and  correct  statement  of affairs of the  Corporation  for the  preceding
fiscal year,  which shall be submitted at the annual  meeting and shall be filed
within twenty (20) days thereafter at the principal office of the Corporation in
the State of Maryland.

                                   ARTICLE XII

                                    AMENDMENT

      SECTION 12.1.  By  Shareholders.  These  By-laws may be amended,  altered,
repealed  or added  to at any  regular  meeting  of the  shareholders  or at any
special meeting called for that purpose,  by the affirmative  vote of a majority
of the shares entitled to vote and represented at such meeting.

      SECTION 12.2.  By  Directors.  The Board of Directors may alter and amend,
adopt,  replace or add to these By-laws at any regular  meeting of the Board, or
at any special meeting of the Board called for that purpose,  by the affirmative
vote of a  majority  of such  Board,  except  where  a vote of  shareholders  is
required by law, the Articles of Incorporation, or these By-laws.


                                      -17-


                                                                    Exhibit 2(b)

                    MUTUAL OF AMERICA INVESTMENT CORPORATION

RE:  By-Law Amendments

The attached  resolutions  reflect  suggested  changes to the By-Laws which will
allow the Corporation to avoid having  stockholder  meetings when the Investment
Company  Act of 1940  would  not  otherwise  require  them.  At a  minimum,  the
Corporation  will be able to avoid having  meetings that only elect directors or
ratify selection of accountants.

            RESOLVED,  that Article II, Section 2.2 of the Corporation's By-Laws
      be deleted and replaced in its entirety by the following:

            "Section 2.2. Annual Meeting.  The Corporation shall not be required
      to hold an annual meeting of its shareholders in any year in which none of
      the  following  is  required to be acted on by the holders of any class or
      series of stock under the Investment Company Act of 1940 (the "1940 Act"):
      (a) election of directors,  (b) approval of the  Corporation's  investment
      advisory  agreement  with  respect to a  particular  class or series;  (c)
      ratification of the selection of independent public  accountants;  and (d)
      approval of the  Corporation's  distribution  agreement  with respect to a
      particular  class or series.  In the event that the  Corporation  shall be
      required to hold a meeting of  shareholders  by the 1940 Act, such meeting
      shall be held:  (a) at a date and time set by the  Board of  Directors  in
      accordance  with the 1940 Act if the  purpose  of the  meeting is to elect
      directors or to approve an investment  advisory  agreement or distribution
      agreement;  and (b) on a date fixed by the Board of  Directors  during the
      month of February (i) in the fiscal year immediately  following the fiscal
      year in which independent accountants were appointed if the purpose of the
      meeting is to ratify the selection of such independent accountants or (ii)
      in any fiscal year if an annual meeting is to be held for any reason other
      than as  specified in the  foregoing.  Any  shareholders'  meeting held in
      accordance with the preceding  sentence shall for all purposes  constitute
      the annual meeting of stockholders  for the fiscal year of the Corporation
      in which the meeting is held. At any such meeting,  the shareholders shall
      elect  directors to hold the offices of any directors who have held office
      for more than one year, or who have been elected by the Board of Directors
      to fill  vacancies  that result from any cause.  Except as the Articles of
      Incorporation  or  statute  provides   otherwise,   any  business  may  be
      considered  at an annual  meeting  without  the  purpose of the  meeting's
      having been  specified  in the notice.  Failure to hold an annual  meeting
      does not  invalidate the  Corporation's  existence or affect any otherwise
      valid corporate acts."


<PAGE>

            RESOLVED,  that the  second  and fifth  sentences  of  Article  III,
      Section  3.4  of  the  Corporation's   By-Laws  be  deleted  and  replaced
      respectively in their entirety by the following:

            "The   directors   shall  be  elected  at  the  annual   meeting  of
            shareholders,  if any,  or at any  special  meeting  held  for  that
            purpose."

            "The  term of  office  of each  director  shall  be from the time of
            his/her election and  qualification  until the election of directors
            next succeeding  his/her election and until his/her  successor shall
            have been elected and shall have qualified,  or until his/her death,
            or until  he/she  shall  have  resigned,  or have  been  removed  as
            hereinafter  provided in these By-Laws,  or as otherwise provided by
            statute or the Articles of Incorporation."



                                                                    Exhibit 2(c)

                    MUTUAL OF AMERICA INVESTMENT CORPORATION

RE: By-Law Amendment

      The following  resolution is being proposed to further  refine  procedures
relating to previous  amendments  which have permitted the  Corporation to avoid
having  unnecessary  annual  shareholders   meetings.  The  proposed  resolution
establishes  that each year the Chairman of the Board will be elected whether or
not an annual shareholders meeting is held.

      RESOLVED,  that the first  paragraph  of Article  III  Section  3.8 of the
Corporation's By-Laws be deleted and replaced in its entirety by the following:

            SECTION 3.8  Chairman of the Board.  The Chairman of the Board shall
      be a member of the Board of Directors, and shall be chosen annually by the
      Board of Directors at its first meeting  after each annual  meeting of the
      shareholders if any is held. Should no annual shareholder  meeting be held
      in  any  year,   the  Chairman  of  the  Board  shall  be  chosen  at  the
      Corporation's second meeting held during each such calendar year.



                                                                    Exhibit 4(a)

                          INVESTMENT ADVISORY AGREEMENT

       INVESTMENT ADVISORY AGREEMENT,  made this 21st day of April, 1993, by and
between Mutual of America Life  Insurance  Company (the  "Adviser"),  a New York
mutual life insurance company, and Mutual of America Investment Corporation (the
"Company"), a Maryland corporation.

                               W I T N E S S E T H

       WHEREAS,  the Company is engaged in business  as a  diversified  open-end
management  investment  Company and is registered  as such under the  Investment
Company Act of 1940, (the "Investment Company Act");

       WHEREAS,  the Company is comprised of seven separate Funds, each of which
pursues its investment objective through separate investment policies;

       WHEREAS,  the Adviser renders  advisory  services and is registered as an
investment adviser under the Investment Advisers Act of 1940; and

       WHEREAS,  the Company desires to retain the Adviser to render  investment
supervisory and corporate  administration  services to the Company in the manner
and on the terms hereinafter set forth;

       NOW THEREFORE, in consideration of the premises and the mutual agreements
herein contained, the Adviser and the Company agree as follows:

       1. General.  For the period and on the terms set forth in this Agreement,
the Adviser shall manage the  investment and  reinvestment  of the assets of the
existing  Funds of the  Company,  (the Money Market  Fund,  the Stock Fund,  the
Equity Index Fund, the Bond Fund,  the  Short-Term  Bond Fund, the Mid-Term Bond
Fund and the Composite  Fund) and of any additional  funds created in the future
(collectively, the existing and any additional funds are hereinafter referred to
as  "Funds").  The Adviser  agrees  during such  period,  at its own expense and
subject to the  supervision of the Board of Directors of the Company,  to render
the investment  advisory  services and assume the obligations  herein set forth,
for the compensation provided by this Agreement.

       2.  Investment  Management  Services.  In carrying out its obligations to
manage the investment and reinvestment of the assets of the Company, the Adviser
shall as appropriate  and consistent with the limitations set forth in Paragraph
3 hereof:

         (a)  perform  research  and obtain  and  evaluate  pertinent  economic,
statistical  and financial data relevant to the  investment  policies of each of
the  Funds as set forth in the then  effective  registration  statement  for the
Company,  as amended from time to time,  filed with the  Securities and Exchange
Commission ("Registration Statement");

<PAGE>

                                      -2-


         (b) consult  with the Board of  Directors of the Company and furnish to
the Board of Directors of the Company recommendations with respect to an overall
investment plan for each of the Funds for approval, modification or rejection by
the Board of Directors of the Company;

         (c) seek out, present and recommend specific investment  opportunities,
consistent with any overall  investment plans approved by the Board of Directors
of the Company;

         (d)  take  such  steps  as  are  necessary  to  implement  any  overall
investment  plans  approved by the Board of Directors of the Company,  including
making  and  carrying  out  decisions  to  acquire  or  dispose  of  permissible
investments,  management of  investments  and any other property of the Company,
and  providing  or  obtaining  such  services as may be  necessary  in managing,
acquiring or disposing of investments;

         (e)  regularly  report to the Board of  Directors  of the Company  with
respect to the  implementation of any approved overall  investment plans and any
other activities in connection with management of the assets of the Company;

         (f) maintain all required accounts, records, memoranda, instructions or
authorizations  relating to the  acquisition or  disposition of investments  for
each Fund; and

         (g) provide all the office space, facilities,  equipment,  material and
personnel necessary to fulfill its obligations under this Agreement.

       3.  Supplemental  Information.  If, in the judgment of the  Adviser,  the
Funds of the Company would be benefited by supplemental investment research from
other  persons  or  entities,  outside  the  context  of  a  specific  brokerage
transaction,  the Adviser is authorized to obtain and pay a reasonable  flat fee
for such  information.  Supplemental  investment  research  shall be  limited to
statistical and other factual information, advice regarding economic factors and
trends and advice as to  occasional  transactions  in specific  securities,  and
shall not involve  general advice or  recommendations  regarding the purchase or
sale of securities.  The expenses of the Adviser may not  necessarily be reduced
as a result of receipt of such supplemental information.

       4.  Limitations  on  Management   Services.   The  Adviser  shall  render
investment advisory services with respect to assets allocated to the Company and
effect all purchases and sales of investments  for each Fund thereof in a manner
consistent with:

            (a) the investment  objectives,  policies and  restrictions for each
      Fund of the Company as stated in the Registration Statement;

            (b) the Rules and Regulations of the Company; and

            (c) the provisions of the Investment Company Act of 1940.

Any  investment  program  undertaken by the Adviser  pursuant to this  Agreement
shall at all times be subject to any directives of the Board of Directors of the
Company  or any duly  constituted  committee  thereof  acting  pursuant  to like
authority.

       5. Brokerage and Research  Services.  The Adviser  shall,  subject to the
supervision of the Board of Directors of the Company,  arrange for the placement
of orders for each of the  Funds,  either

<PAGE>

                                      -3-


directly with the issuer, with any broker-dealer or underwriter that specializes
in the securities for which the order is made or with any other broker or dealer
selected by the Adviser, subject to the following limitations.

       The  Adviser is  authorized  to select the  brokers or dealers  that will
execute the purchases and sales of portfolio  securities  for the Funds and will
use its best  efforts to obtain the most  favorable  net  results,  taking  into
account all appropriate  factors,  including price, dealer spread or commission,
if any,  size of the  transaction  and  difficulty  of  execution.  However,  in
addition to seeking the best price and execution, the Adviser may also take into
consideration research and statistical  information and wire and other quotation
services  provided to the Adviser.  In any event,  the Adviser shall select only
brokers  whose  commissions  it  believes  are  reasonable.   The  Adviser  will
periodically  evaluate  the  statistical  data,  research  and other  investment
services provided by brokers and dealers to it. Such services may be used by the
Adviser  in  connection  with the  performance  of its  obligations  under  this
Agreement  or  in  connection  with  other  advisory  activities  or  investment
operations.

       6. Compensation.  As compensation for its investment advisory services to
the Company, the Adviser shall receive an amount calculated as a daily charge at
the annual  rates of .125% of the value of the net  assets of the  Equity  Index
Fund, 0.25% of the value of the net assets of the Money Market Fund and 0.50% of
the value of the net assets of the Stock  Fund,  the Bond Fund,  the  Short-Term
Bond Fund, the Mid-Term Bond Fund and the Composite Fund, respectively (computed
in accordance with the Investment Company Act and the Registration Statement).

       7. Expenses.  The Adviser shall be responsible for all expenses  incurred
in performing the investment advisory services herein set forth, including costs
of  compensating  and furnishing  office space for officers and employees of the
Adviser connected with investment and economic research,  trading and investment
management  for the Funds of the  Company.  All brokers'  commissions,  transfer
taxes and other fees  relating to purchases  and sales of  investments  for each
Fund of the Company shall be paid out of assets allocated to such Fund.

       8. Services Not Exclusive.  The services rendered by the Adviser pursuant
to this  Agreement  are not to be deemed  exclusive,  and the Adviser may render
similar  services to other entities so long as its services under this Agreement
are not impaired or interfered with.

       It is  understood  that  the  Adviser  or  its  affiliates  may  use  any
investment  research  obtained  for the  benefit  of the  Company  in  providing
investment  advice  to its  other  investment  advisory  accounts  or for use in
managing their own accounts.  Conversely, such supplemental information obtained
by the  placement of business for the Company or other  entities  advised by the
Adviser may be  considered  by and may be useful to the Adviser in carrying  out
its obligations to the Company.

       When the  Adviser  deems the  purchase or sale of a security to be in the
best interests of a Fund of the Company, as well as other accounts or companies,
it may, to the extent permitted by applicable laws and regulations, but will not
be obligated to,  aggregate the securities to be sold or purchased for such Fund
with those to be sold or purchased  for other  accounts or companies in order to
obtain  favorable  execution  and low  brokerage  commissions.  In  that  event,
allocation of the securities purchased or sold, as well as the expenses incurred
in the transaction, will be made by the Adviser in the manner it considers to be
most equitable and consistent with its fiduciary  obligations

<PAGE>
                                      -4-


to the Company and to such other accounts or companies.  The Company  recognizes
that in some cases this procedure may adversely  affect the size of the position
obtainable for it.

       9. Term of Agreement.  This Agreement will continue from year to year but
only so long as such  continuance  is  specifically  approved at least  annually
either (i) by the Board of Directors of the Fund or (ii) by a vote of a majority
of the outstanding voting securities of the Fund,  provided that in either event
such  continuance  will  also  be  approved  by the  vote of a  majority  of the
directors who are not interested  persons (as defined in the Investment  Company
Act) of the  Fund,  or of the  Insurance  Company,  cast in  person at a meeting
called  for the  purpose of voting on such  approval.  In  connection  with such
approvals, the Board of Directors of the Company shall request and evaluate, and
the Adviser shall furnish,  such  information as may be reasonably  necessary to
evaluate the terms of this Agreement. This Agreement:

            (a)  shall  not be  terminated  by the  Adviser  without  the  prior
      approval of a new investment  advisory  agreement by vote of a majority of
      the outstanding shares of each Fund of the Company;

            (b) shall be  subject to  termination,  without  the  payment of any
      penalty,  by the  Board  of  Directors  of the  Company,  or by  vote of a
      majority of the  outstanding  shares of the Company,  or with respect to a
      particular  Fund by vote of a majority of the  outstanding  shares of that
      Fund, in each case on sixty days written notice to the Adviser;

            (c) shall not be amended without specific approval of such amendment
      by (i) the Board of Directors of the Company, or by the vote of a majority
      of the  outstanding  shares of each Fund affected by such  amendment,  and
      (ii) a majority of those  members of the Board of Directors of the Company
      who are not  parties to this  Agreement  or  interested  persons of such a
      party,  cast in person at a meeting  called  for the  purpose of voting on
      such approval; and

            (d) shall automatically terminate upon assignment by either party.

       10. Recordkeeping.  The Adviser agrees that all accounts and records that
it  maintains  for the Company  shall be the property of the Company and that it
will  surrender  promptly to the  designated  officers of the Company any or all
such accounts and records upon request.  The Adviser  further agrees to preserve
for the period  prescribed by the rules and  regulations  of the  Securities and
Exchange  Commission  all  such  records  and  accounts  as are  required  to be
maintained pursuant to said rules. The Adviser also agrees that it will maintain
all records and accounts  regarding  the  investment  activities  of each of the
Funds in a  confidential  manner.  All such  accounts  or records  shall be made
available,  within five (5) business days of a written request, to the Company's
accountants or auditors during regular business hours at the Adviser's  offices.
In  addition,  the Adviser  will  provide any  materials  as are  required to be
maintained pursuant to said rules. The Adviser also agrees that it will maintain
all records and accounts  reasonably related to the investment advisory services
provided hereunder,  as may reasonably be requested in writing by the members of
the Board of Directors of the Company or as may be required by any  governmental
agency having jurisdiction over the Adviser or the Company.

       11.  Interested and Affiliated  Persons.  It is understood  that members,
officers,  employees  or agents of the  Company  may also be  interested  in the
Adviser as directors, officers, employees, agents or otherwise.

<PAGE>
                                      -5-


       12. Liability of the Adviser. In the absence of willful misfeasance,  bad
faith,  gross  negligence or reckless  disregard of obligations or duties on the
part of the Adviser (or its officers, directors, agents, employees,  controlling
persons,  and any other person or entity affiliated with the Adviser or retained
by it to  perform or assist in the  performance  of its  obligations  under this
Agreement), neither the Adviser nor any of its officers, directors, employees or
agents shall be subject to liability  to the Company or any  shareholder  of the
Company for any act or omission in the course of, or connected  with,  rendering
services  hereunder,  including  without  limitation,  any error of  judgment or
mistake of law or for any loss suffered by the Company or any shareholder of the
Company in connection with the matters to which this Agreement  relates,  except
to the  extent  specified  in  Section  36(b)  of  the  Investment  Company  Act
concerning  loss  resulting  from a breach of fiduciary duty with respect to the
receipt of compensation for services.

       13.  Governing  Law. This  Agreement is subject to the  provisions of the
Investment  Company  Act,  as  amended,  and the  rules and  regulations  of the
Securities  and  Exchange  Commission  thereunder,   including  such  exemptions
therefrom as the Securities and Exchange Commission may grant. Words and phrases
used herein shall be interpreted in accordance with that Act and those rules and
regulations,  and  such  exemptions.  Without  limiting  the  generality  of the
foregoing,  (a) the term "assigned"  shall not include any transaction  exempted
from  Section  15(a)(4)  of  the  Investment  Company  Act  by an  order  of the
Securities and Exchange Commission,  and (b) as used with respect to the Company
or any of its Funds,  the term  "majority of the  outstanding  shares" means the
lesser of (i) 67% of the shares  represented at a meeting at which more than 50%
of the  outstanding  shares  are  represented,  or  (ii)  more  than  50% of the
outstanding shares.

       14.  Miscellaneous.  The  Adviser  shall  submit  to all  regulatory  and
administrative  bodies having jurisdiction over the operations of the Adviser or
the  Company,  present  or  future,  any  materials,  reasonably  related to the
investment advisory services provided hereunder,  as may be reasonably requested
in writing by the Board of Directors of the Company or as may be required by any
governmental agency having jurisdiction.

       WITNESS WHEREOF,  the parties hereto have caused this Investment Advisory
Agreement to be duly executed as of the day and year first above written.

                                       MUTUAL OF AMERICA LIFE INSURANCE
                                                   COMPANY

                                             /s/ Manfred Altstadt
                                       --------------------------------


                                       MUTUAL OF AMERICA INVESTMENT
                                                 CORPORATION

                                           /s/ Dolores J. Morrissey
                                       --------------------------------




                                                                    Exhibit 4(b)

                              ASSUMPTION AGREEMENT

      ASSUMPTION AGREEMENT made this 3rd day of November,  1993 (the "Assumption
Agreement"), by and between Mutual of America Life Insurance Company, a New York
mutual life insurance  company (the  "Insurance  Company") and Mutual of America
Capital Management Corporation, a Delaware corporation (the "Adviser").

                               W I T N E S S E T H

      WHEREAS, Mutual of America Investment Corporation,  a Maryland corporation
(the  "Investment  Company"),  is engaged in business as a diversified  open-end
management company and is registered as such under the Investment Company Act of
1940 (the "Investment Company Act"); and

      WHEREAS, the Investment Company is comprised of seven separate Funds, each
of which pursues its investment  objective through separate investment policies;
and

      WHEREAS,  the Insurance Company,  as investment  adviser,  entered into an
investment  advisory agreement dated April 20, 1993, with the Investment Company
(the "Investment Advisory Agreement"); and

      WHEREAS,  the Adviser  renders  advisory  services and is registered as an
investment adviser under the Investment Advisers Act of 1940; and

      WHEREAS,  the Adviser  wishes to assume the  obligations  of the Insurance
Company under the Investment Advisory Agreement; and

      WHEREAS,  the  Insurance  Company  wishes to assign its  rights  under the
Investment Advisory Agreement to the Adviser; and

      WHEREAS,  the  Investment  Company  wishes  to  accept  and  agree  to the
provisions of the Assumption Agreement; and

      WHEREAS,  pursuant  to Rule 2a-6 under the  Investment  Company  Act,  the
provisions of the Assumption  Agreement  will not be deemed an assignment  under
the Investment Company Act;

      NOW THEREFORE,  in consideration of the promises and the mutual agreements
herein contained, the Insurance Company and the Adviser agree as follows:

      1. The Adviser  hereby  assumes all of the  obligations  of the  Insurance
Company under the Investment Advisory Agreement.

<PAGE>

      2. The  Insurance  Company  hereby  assigns  all of its  rights  under the
Investment Advisory Agreement to the Adviser.

      3. The provisions  hereof are deemed not to be an assignment under Section
9 of the Investment Advisory Agreement.

      IN WITNESS  WHEREOF,  the  parties  hereto  have  caused  this  Assumption
Agreement to be executed as of the day and year first above written.

                                       MUTUAL OF AMERICA LIFE INSURANCE
                                                    COMPANY

                                             /s/ Richard J. Ciecka
                                       --------------------------------


                                      MUTUAL OF AMERICA CAPITAL MANAGEMENT
                                                 CORPORATION

                                             /s/ Frederick S. Hammer
                                       --------------------------------


The foregoing  Assumption  Agreement
is accepted and agreed to as of
the 3rd day of November, 1993.

MUTUAL OF AMERICA INVESTMENT
     CORPORATION

     /s/ Dolores J. Morrissey
- ------------------------------------


                                                                    Exhibit 4(c)

                                  SUPPLEMENT AA

                                       TO

                          INVESTMENT ADVISORY AGREEMENT

        Supplement AA made this 29th day of April 1, 1994, by and between Mutual
of  America  Capital  Management   Corporation,   a  Delaware  corporation  (the
"Adviser"), and Mutual of America Investment Corporation, a Maryland corporation
(the "Company"),  supplementing the investment advisory agreement dated the 21st
day of April,  1993, by and between the Adviser and the Company (the "Investment
Advisory Agreement").

                               W I T N E S S E T H

        WHEREAS,  the  Company  desires  to  authorize  the  Adviser  to  engage
subadvisory  services  with respect to the  management  of the assets of the All
America  (previously  Stock) Fund of the Company (the "All America Fund") in the
manner and on the terms hereinafter set forth:

        NOW  THEREFORE,   in  consideration  of  the  premises  and  the  mutual
agreements  herein  contained,  the  Investment  Advisory  Agreement  is  hereby
supplemented as follows:

        1. Engagement of Subadvisory  Services.  In carrying out its obligations
to manage the investment and reinvestment of the assets of the All America Fund,
the Adviser shall,  as appropriate and consistent with the limitations set forth
in Paragraph 4 of the Investment Advisory Agreement engage, on behalf of the All
America  Fund and with the  required  consent of the  stockholders  thereof,  he
services  of  one  or  more  subadvisers  (the  "Subadvisers"),  subject  to any
limitations imposed by the Investment Company Act of 1940.

        2. Brokerage and Research Services. With respect only to the All America
Fund,  Paragraph 5 of the Investment  Advisory Agreement shall be interpreted so
that the term  "Adviser",  whenever it appears in the  Paragraph,  includes  the
Subadvisers.

        IN WITNESS WHEREOF, the parties hereto have caused this Supplement AA to
the  Investment  Advisory  Agreement to be duly  executed as of the day and year
first above written.

                                      MUTUAL OF AMERICA
                               CAPITAL MANAGEMENT CORPORATION

                                   By: /s/ Thomas J. Verage
                                       -------------------------------
                                       Name:  Thomas J. Verage
                                       Title:  Senior Vice President

                                      MUTUAL OF AMERICA
                                   INVESTMENT CORPORATION

                                    By: /s/ Manfred Altstadt
                                       -------------------------------
                                       Name:  Manfred Altstadt
                                       Title: Senior Exec.Vice Pres. & CFO



                                                                    Exhibit 4(d)

                                  SUPPLEMENT AE

                                       TO

                          INVESTMENT ADVISORY AGREEMENT

       Supplement AE made this 29th day of April, 1994, by and between Mutual of
America Capital Management Corporation,  a Delaware corporation (the "Adviser"),
and Mutual of America  Investment  Corporation  , a  Maryland  corporation  (the
"Company"),  supplementing the investment  advisory agreement dated the 21st day
of April,  1993,  by and between the  Adviser and the Company  (the  "Investment
Advisory Agreement").

                               W I T N E S S E T H

       WHEREAS,   the  Company  desires  to  authorize  the  Adviser  to  engage
subadvisory  services  with  respect  to the  management  of the  assets  of the
Aggressive  Equity Fund of the Company  (the  "Aggressive  Equity  Fund") in the
manner and on the terms hereinafter set forth;

       NOW THEREFORE, in consideration of the promises and the mutual agreements
herein contained,  the Investment  Advisory Agreement is hereby  supplemented as
follows:

       1. Engagement of Subadvisory Services. In carrying out its obligations to
manage the investment and  reinvestment  of the assets of the Aggressive  Equity
Fund, the Adviser shall as appropriate  and consistent  with the limitations set
forth in Paragraph 4 of the Investment  Advisory  Agreement engage, on behalf of
the  Aggressive  Equity Fund and with the required  consent of the  stockholders
thereof, the services of one or more subadvisers (the "Subadvisers"), subject to
any limitations imposed by the Investment Company Act of 1940.

       2. Brokerage and Research  Services.  With respect only to the Aggressive
Equity  Fund,  Paragraph  5  of  the  Investment  Advisory  Agreement  shall  be
interpreted  so that the term  "Adviser",  whenever it appears in the Paragraph,
includes the Subadvisers.

       IN WITNESS WHEREOF,  the parties hereto have caused this Supplement AE to
the  Investment  Advisory  Agreement to be duly  executed as of the day and year
first above written.

                                      MUTUAL OF AMERICA
                               CAPITAL MANAGEMENT CORPORATION

                                   By: /s/ Thomas J. Verage
                                       -------------------------------
                                       Name:  Thomas J. Verage
                                       Title:  Senior Vice President

                                      MUTUAL OF AMERICA
                                   INVESTMENT CORPORATION

                                    By: /s/ Manfred Altstadt
                                       -------------------------------
                                       Name:  Manfred Altstadt
                                       Title: Senior Exec.Vice Pres. & CFO



                                                                    Exhibit 4(f)

                              SUBADVISORY AGREEMENT

       SUBADVISORY  AGREEMENT,  made this 2nd day of May,  1994,  by and between
Mutual of America Capital Management  Corporation,  a Delaware  corporation (the
"Adviser"),  and  Fred  Alger  Management,  Inc.,  a New York  corporation  (the
"Subadviser").

                               W I T N E S S E T H

       WHEREAS,  Mutual  of  America  Investment  Corporation  (the  "Investment
Company") is engaged in business as a diversified open-end management investment
company and is registered as such under the Investment  Company Act of 1940 (the
"Investment Company Act"); and

       WHEREAS, the Investment Company is comprised of eight separate Funds, one
of which is  designated,  and is  hereinafter  referred  to, as the "All America
Fund"; and

       WHEREAS,  the Adviser renders  advisory  services and is registered as an
investment adviser under the Investment Advisers Act of 1940; and

       WHEREAS,  the  Investment  Company  entered into an  investment  advisory
agreement dated April 21, 1993 (the "Original  Investment  Advisory  Agreement")
with Mutual of America Life Insurance Company (the "Insurance Company"); and

       WHEREAS,  the  obligations  of the  Insurance  Company under the Original
Investment  Advisory  Agreement  were  assumed by the  Adviser,  pursuant  to an
assumption  agreement dated November 3, 1993,  between the Insurance Company and
the Adviser (the  "Assumption  Agreement"),  which was accepted and agreed to by
the  Investment  Company  as of such  date  (the  Original  Investment  Advisory
Agreement  and the  Assumption  Agreement  together,  the  "Investment  Advisory
Agreement"); and

       WHEREAS,  the  Adviser  renders  investment   supervisory  and  corporate
administration  services to the Investment  Company, on the terms and conditions
set forth in the Investment Advisory Agreement; and

       WHEREAS,  the Investment  Advisory Agreement was supplemented on December
30, 1993 with respect to the  management  of the assets of the All America Fund;
and

       WHEREAS, the Subadviser renders advisory services and is registered as an
investment adviser under the Investment Advisers Act of 1940; and

       WHEREAS,   the  Adviser  desires  to  retain  the  Subadviser  to  render
investment  supervisory services to the Adviser in connection with the Adviser's
responsibilities  to the All America Fund with respect to such assets of the All
America Fund as shall be allocated to the Subadviser (the "Allocated Assets") in
the manner and on the terms hereinafter set forth;

<PAGE>

       NOW THEREFORE, in consideration of the promises and the mutual agreements
herein contained, the Adviser and the Subadviser agree as follows:

       1. General.  For the period and on the terms set forth in this Agreement,
the Subadviser  shall manage the investment  and  reinvestment  of the Allocated
Assets of the All America Fund. The Subadviser agrees during such period, at its
own  expense  and  subject to the  supervision  of the  Adviser and the Board of
Directors of the Investment  Company, to render the investment advisory services
and assume the obligations  herein set forth, for the  compensation  provided by
this Agreement.

       2.  Investment  Management  Services.  In carrying out its obligations to
manage  the  investment  and  reinvestment  of the  Allocated  Assets of the All
America Fund,  the  Subadviser  shall as  appropriate  and  consistent  with the
limitations set forth in Paragraph 3 hereof:

            (a) perform  research  and obtain and evaluate  pertinent  economic,
      statistical and financial data relevant to the investment  policies of the
      All America Fund as set forth in the then effective registration statement
      for the Investment  Company,  as amended from time to time, filed with the
      Securities and Exchange Commission (the "Registration Statement");

            (b)  review  with the  Adviser  and the  Board of  Directors  of the
      Investment Company the overall investment plan for the Allocated Assets of
      the All America Fund;

            (c) make  investments  consistent with any overall  investment plans
      previously  approved  by the  Adviser  and the Board of  Directors  of the
      Investment Company;

            (d) take  such  steps as are  necessary  to  implement  any  overall
      investment plans approved by the Adviser and the Board of Directors of the
      Investment Company, including making and carrying out decisions to acquire
      or dispose of permissible  investments,  management of investments and any
      other property  constituting the Allocated Assets of the All America Fund,
      and providing or obtaining  such services as may be necessary in managing,
      acquiring or disposing of investments;

            (e)  regularly  report to the Adviser and the Board of  Directors of
      the Investment Company with respect to all investment  activity associated
      with the management of the Allocated Assets of the All America Fund;

            (f) maintain all required accounts, records, memoranda, instructions
      or   authorizations   relating  to  the   acquisition  or  disposition  of
      investments for the All America Fund; and

            (g) provide all the office space,  facilities,  equipment,  material
      and personnel necessary to fulfill its obligations under this Agreement.


                                       2
<PAGE>

       3.  Limitations  on  Management  Services.  The  Subadviser  shall render
investment  advisory  services with respect to the  Allocated  Assets of the All
America Fund and effect all purchases and sales of investments for the Allocated
Assets of the All America Fund in a manner consistent with:

            (a) the investment  objectives,  policies and  restrictions  for the
      Allocated  Assets of the All  America  Fund as stated in the  Registration
      Statement;

            (b) the procedures and guidelines  adopted by the Board of Directors
      of the Investment Company; and

            (c) the provisions of the Investment Company Act.

       Any  investment  program  undertaken by the  Subadviser  pursuant to this
Agreement shall at all times be subject to any directives of the Adviser and the
Board of Directors of the Investment  Company or any duly constituted  committee
thereof acting pursuant to like authority.

       4. Brokerage and Research Services. The Subadviser shall, with respect to
the Allocated Assets of the All America Fund,  subject to the supervision of the
Adviser and the Board of Directors of the  Investment  Company,  arrange for the
placement of orders for the All America Fund,  either  directly with the issuer,
with any  broker-dealer  or underwriter  that  specializes in the securities for
which  the order is made or with any other  broker  or  dealer  selected  by the
Subadviser, subject to the following limitations.

       The  Subadviser  is authorized to select the brokers or dealers that will
execute  the  purchases  and  sales of  portfolio  securities  constituting  the
Allocated Assets of the All America Fund and will use its best efforts to obtain
the most  favorable net results,  taking into account all  appropriate  factors,
including  price,  dealer spread or commission,  if any, size of the transaction
and difficulty of execution. However, in selecting brokers or dealers to execute
a particular transaction and in evaluating the best overall terms available, the
Subadviser may consider the brokerage and research  services (as those terms are
defined in Section 28(e) of the Securities Exchange Act of 1934) provided to All
America Fund and/or other  accounts  over which the  Subadviser  or an affiliate
exercises investment  discretion.  The Subadviser will periodically evaluate the
statistical data, research and other investment services provided by brokers and
dealers to it. Such services may be used by the  Subadviser  in connection  with
the  performance of its  obligations  under this Agreement or in connection with
other advisory activities or investment operations.

       5. Compensation.  As compensation for its investment advisory services to
the Adviser,  the  Subadviser  shall receive an amount  calculated  daily at the
annual rate of .45% of the value of the net assets  constituting  the  Allocated
Assets of the All America Fund.

       6.  Expenses.  The  Subadviser  shall  be  responsible  for all  expenses
incurred  in  performing  the  investment  advisory  services  herein set forth,
including  costs of  compensating


                                       3
<PAGE>

and  furnishing  office  space for  officers  and  employees  of the  Subadviser
connected  with  investment  and  economic  research,   trading  and  investment
management  for the All America Fund. All brokers'  commissions,  transfer taxes
and other  fees  relating  to  purchases  and sales of  investments  for the All
America Fund shall be paid out of assets of the All America Fund.

       7.  Services  Not  Exclusive.  The  services  rendered by the  Subadviser
pursuant to this  Agreement are not to be deemed  exclusive,  and the Subadviser
may render similar services to other entities so long as its services under this
Agreement are not impaired or interfered with.

       It is  understood  that  the  Subadviser  or its  affiliates  may use any
investment  research  obtained  for  the  benefit  of the  All  America  Fund in
providing investment advice to its other investment advisory accounts or for use
in  managing  their own  accounts.  Conversely,  such  supplemental  information
obtained by the placement of business for the All America Fund or other entities
advised  by  the  Subadviser  may be  considered  by and  may be  useful  to the
Subadviser in carrying out its obligations to the All America Fund.

       When the Subadviser deems the purchase or sale of a security to be in the
best  interests of the All America Fund as well as other  accounts or companies,
it may, to the extent  permitted by applicable laws and regulations but will not
be obligated to,  aggregate  the  securities to be sold or purchased for the All
America Fund with those to be sold or purchased for other  accounts or companies
in order to obtain favorable  execution and low brokerage  commissions.  In that
event,  allocation of the securities  purchased or sold, as well as the expenses
incurred in the  transaction,  will be made by the  Subadviser  in the manner it
considers to be most equitable and consistent with its fiduciary  obligations to
the All America Fund and to such other  accounts or  companies.  The  Investment
Company  recognizes  that in some cases this procedure may adversely  affect the
price  paid  or  received  by All  America  Fund  or the  size  of the  position
obtainable or disposable for the All America Fund.

       8. Term of Agreement.  This Agreement will continue from year to year but
only so long as such  continuance  is  specifically  approved at least  annually
either (i) by the Board of Directors of the Investment Company or (ii) by a vote
of a majority of the  outstanding  voting  securities  of the All America  Fund,
provided that in either event such continuance will also be approved by the vote
of a majority of the directors who are not interested persons (as defined in the
Investment  Company  Act)  of  the  Investment  Company,  the  Adviser,  or  the
Subadviser, cast in person at a meeting called for the purpose of voting on such
approval.  In  connection  with such  approvals,  the  Adviser  and the Board of
Directors  of the  Investment  Company  shall  request  and  evaluate,  and  the
Subadviser  shall furnish,  such  information as may be reasonably  necessary to
evaluate the terms of this Agreement. This Agreement:

            (a) shall be  subject to  termination,  without  the  payment of any
      penalty,  by the  Subadviser on one hundred eighty days' written notice to
      the Adviser and the Investment Company;

            (b) shall be  subject to  termination,  without  the  payment of any
      penalty,  by the  Adviser  or the  Board of  Directors  of the  Investment
      Company,  or by vote of a majority  of the


                                       4
<PAGE>

      outstanding  shares of the All America  Fund,  in each case on sixty days'
      written notice to the Subadviser;

            (c) shall not be amended without specific approval of such amendment
      by the Adviser and (i) the Board of Directors of the  Investment  Company,
      or by the vote of a majority of the outstanding  shares of the All America
      Fund,  and (ii) a majority of those  members of the Board of  Directors of
      the Investment Company who are not parties to this Agreement or interested
      persons  of such a party,  cast in  person  at a  meeting  called  for the
      purpose of voting on such approval; and

            (d) shall automatically terminate upon assignment by either party.

       9.  Recordkeeping.  The  Subadviser  agrees that all accounts and records
that it  maintains  for the  Investment  Company  shall be the  property  of the
Investment  Company  and  that  it will  surrender  promptly  to the  designated
officers of the  Investment  Company any or all such  accounts  and records upon
request.  The Subadviser further agrees to preserve for the period prescribed by
the rules and  regulations of the  Securities  and Exchange  Commission all such
records and  accounts as are required to be  maintained  pursuant to said rules.
The  Subadviser  also agrees  that it will  maintain  all  records and  accounts
regarding the investment  activities with respect to the Allocated Assets of the
All America Fund in a confidential manner. All such accounts or records shall be
made  available,  within five (5)  business  days of a written  request,  to the
Investment  Company's  accountants or auditors during regular  business hours at
the Subadviser's offices. In addition, the Subadviser will provide any materials
as are required to be maintained  pursuant to said rules.  The  Subadviser  also
agrees that it will maintain all records and accounts  reasonably related to the
investment advisory services provided hereunder,  as may reasonably be requested
in  writing  by the  Adviser or the  members  of the Board of  Directors  of the
Investment  Company or as may be  required  by any  governmental  agency  having
jurisdiction over the Adviser, the Subadviser, or the Investment Company.

       10.  Interested and Affiliated  Persons.  It is understood  that members,
officers,  employees or agents of the Investment Company or the Adviser may also
be interested in the  Subadviser as directors,  officers,  employees,  agents or
otherwise.

       11. Liability of the Subadviser.  In the absence of willful  misfeasance,
bad faith,  gross  negligence or reckless  disregard of obligations or duties on
the part of the  Subadviser  (or its  officers,  directors,  agents,  employees,
controlling  persons,  and any  other  person  or  entity  affiliated  with  the
Subadviser  or  retained  by it to perform or assist in the  performance  of its
obligations  under  this  Agreement),  neither  the  Subadviser  nor  any of its
officers,  directors,  employees  or agents shall be subject to liability to the
Investment  Company or any shareholder of the Investment  Company for any act or
omission in the course of, or  connected  with,  rendering  services  hereunder,
including  without  limitation,  any error of judgment or mistake of law, or for
any loss suffered by the Investment Company or any shareholder of the Investment
Company in connection with the matters to which this Agreement  relates,  except
to the extent


                                       5
<PAGE>

specified in the Investment  Company Act concerning loss resulting from a breach
of fiduciary duty with respect to the receipt of compensation for services.

       12.  Governing  Law. This  Agreement is subject to the  provisions of the
Investment  Company  Act,  as  amended,  and the  rules and  regulations  of the
Securities  and  Exchange  Commission  thereunder,   including  such  exemptions
therefrom as the Securities and Exchange Commission may grant. Words and phrases
used herein shall be interpreted in accordance with that Act and those rules and
regulations, and such exemptions.

       13.  Miscellaneous.  The  Subadviser  shall submit to all  regulatory and
administrative  bodies having  jurisdiction  over the operations of the Adviser,
the  Subadviser or the  Investment  Company,  present or future,  any materials,
reasonably related to the investment  advisory services provided  hereunder,  as
may be reasonably  requested in writing by the Adviser or the Board of Directors
of the  Investment  Company or as may be  required  by any  governmental  agency
having jurisdiction.

       IN WITNESS  WHEREOF,  the parties  hereto  have  caused this  Subadvisory
Agreement to be duly executed as of the day and year first above written.

                                    MUTUAL OF AMERICA CAPITAL
                                      MANAGEMENT CORPORATION

                                    By:  /s/  Manfred Altstadt
                                         --------------------------------------
                                         Name:   Manfred Altstadt
                                         Title:  Senior Executive Vice President
                                                  & CFO

                                    FRED ALGER MANAGEMENT, INC.

                                    By:  /s/  Gregory S. Duch
                                         --------------------------------------
                                         Name:   Gregory S. Duch
                                         Title:  Treasurer


                                       6


                                                                    Exhibit 4(g)

                              SUBADVISORY AGREEMENT

       SUBADVISORY  AGREEMENT,  made this 2nd day of May,  1994,  by and between
Mutual of America Capital Management  Corporation,  a Delaware  corporation (the
"Adviser"), and James Dravo Oelschlager, a sole proprietor doing business as Oak
Associates (the "Subadviser").

                               W I T N E S S E T H

       WHEREAS,  Mutual  of  America  Investment  Corporation  (the  "Investment
Company") is engaged in business as a diversified open-end management investment
company and is registered as such under the Investment  Company Act of 1940 (the
"Investment Company Act"); and

       WHEREAS, the Investment Company is comprised of eight separate Funds, one
of which is  designated,  and is  hereinafter  referred  to, as the "All America
Fund"; and

       WHEREAS,  the Adviser renders  advisory  services and is registered as an
investment adviser under the Investment Advisers Act of 1940; and

       WHEREAS,  the  Investment  Company  entered into an  investment  advisory
agreement dated April 21, 1993 (the "Original  Investment  Advisory  Agreement")
with Mutual of America Life Insurance Company (the "Insurance Company"); and

       WHEREAS,  the  obligations  of the  Insurance  Company under the Original
Investment  Advisory  Agreement  were  assumed by the  Adviser,  pursuant  to an
assumption  agreement dated November 3, 1993,  between the Insurance Company and
the Adviser (the  "Assumption  Agreement"),  which was accepted and agreed to by
the  Investment  Company  as of such  date  (the  Original  Investment  Advisory
Agreement  and the  Assumption  Agreement  together,  the  "Investment  Advisory
Agreement"); and

       WHEREAS,  the  Adviser  renders  investment   supervisory  and  corporate
administration  services to the Investment  Company, on the terms and conditions
set forth in the Investment Advisory Agreement; and

       WHEREAS,  the Investment  Advisory Agreement was supplemented on December
30, 1993 with respect to the  management  of the assets of the All America Fund;
and

       WHEREAS, the Subadviser renders advisory services and is registered as an
investment adviser under the Investment Advisers Act of 1940; and

       WHEREAS,   the  Adviser  desires  to  retain  the  Subadviser  to  render
investment  supervisory services to the Adviser in connection with the Adviser's
responsibilities  to the All America Fund with respect to such assets of the All
America Fund as shall be allocated to the Subadviser (the "Allocated Assets") in
the manner and on the terms hereinafter set forth;

<PAGE>

       NOW THEREFORE, in consideration of the promises and the mutual agreements
herein contained, the Adviser and the Subadviser agree as follows:

       1. General.  For the period and on the terms set forth in this Agreement,
the Subadviser  shall manage the investment  and  reinvestment  of the Allocated
Assets of the All America Fund. The Subadviser agrees during such period, at its
own  expense  and  subject to the  supervision  of the  Adviser and the Board of
Directors of the Investment  Company, to render the investment advisory services
and assume the obligations  herein set forth, for the  compensation  provided by
this Agreement.

       2.  Investment  Management  Services.  In carrying out its obligations to
manage  the  investment  and  reinvestment  of the  Allocated  Assets of the All
America Fund,  the  Subadviser  shall as  appropriate  and  consistent  with the
limitations set forth in Paragraph 3 hereof:

            (a) perform  research  and obtain and evaluate  pertinent  economic,
      statistical and financial data relevant to the investment  policies of the
      All America Fund as set forth in the then effective registration statement
      for the Investment  Company,  as amended from time to time, filed with the
      Securities and Exchange Commission (the "Registration Statement");

            (b)  review  with the  Adviser  and the  Board of  Directors  of the
      Investment Company the overall investment plan for the Allocated Assets of
      the All America Fund;

            (c) make  investments  consistent with any overall  investment plans
      previously  approved  by the  Adviser  and the Board of  Directors  of the
      Investment Company;

            (d) take  such  steps as are  necessary  to  implement  any  overall
      investment plans approved by the Adviser and the Board of Directors of the
      Investment Company, including making and carrying out decisions to acquire
      or dispose of permissible  investments,  management of investments and any
      other property  constituting the Allocated Assets of the All America Fund,
      and providing or obtaining  such services as may be necessary in managing,
      acquiring or disposing of investments;

            (e)  regularly  report to the Adviser and the Board of  Directors of
      the Investment Company with respect to all investment  activity associated
      with the management of the Allocated Assets of the All America Fund;

            (f) maintain all required accounts, records, memoranda, instructions
      or   authorizations   relating  to  the   acquisition  or  disposition  of
      investments for the All America Fund; and

            (g) provide all the office space,  facilities,  equipment,  material
      and personnel necessary to fulfill its obligations under this Agreement.


                                       2
<PAGE>

       3.  Limitations  on  Management  Services.  The  Subadviser  shall render
investment  advisory  services with respect to the  Allocated  Assets of the All
America Fund and effect all purchases and sales of investments for the Allocated
Assets of the All America Fund in a manner consistent with:

            (a) the investment  objectives,  policies and  restrictions  for the
      Allocated  Assets of the All  America  Fund as stated in the  Registration
      Statement;

            (b) the procedures and guidelines  adopted by the Board of Directors
      of the Investment Company; and

            (c) the provisions of the Investment Company Act.

       Any  investment  program  undertaken by the  Subadviser  pursuant to this
Agreement shall at all times be subject to any directives of the Adviser and the
Board of Directors of the Investment  Company or any duly constituted  committee
thereof acting pursuant to like authority.

       4. Brokerage and Research Services. The Subadviser shall, with respect to
the Allocated Assets of the All America Fund,  subject to the supervision of the
Adviser and the Board of Directors of the  Investment  Company,  arrange for the
placement of orders for the All America Fund,  either  directly with the issuer,
with any  broker-dealer  or underwriter  that  specializes in the securities for
which  the order is made or with any other  broker  or  dealer  selected  by the
Subadviser, subject to the following limitations.

       The  Subadviser  is authorized to select the brokers or dealers that will
execute  the  purchases  and  sales of  portfolio  securities  constituting  the
Allocated Assets of the All America Fund and will use its best efforts to obtain
the most  favorable net results,  taking into account all  appropriate  factors,
including  price,  dealer spread or commission,  if any, size of the transaction
and difficulty of execution. However, in selecting brokers or dealers to execute
a particular transaction and in evaluating the best overall terms available, the
Subadviser may consider the brokerage and research  services (as those terms are
defined in Section 28(e) of the Securities Exchange Act of 1934) provided to All
America Fund and/or other  accounts  over which the  Subadviser  or an affiliate
exercises investment  discretion.  The Subadviser will periodically evaluate the
statistical data, research and other investment services provided by brokers and
dealers to it. Such services may be used by the  Subadviser  in connection  with
the  performance of its  obligations  under this Agreement or in connection with
other advisory activities or investment operations.

       5. Compensation.  As compensation for its investment advisory services to
the Adviser,  the  Subadviser  shall receive an amount  calculated  daily at the
annual rate of .30% of the value of the net assets  constituting  the  Allocated
Assets of the All America Fund.

       6.  Expenses.  The  Subadviser  shall  be  responsible  for all  expenses
incurred  in  performing  the  investment  advisory  services  herein set forth,
including  costs of  compensating  and furnishing  office space for officers and
employees of the  Subadviser  connected with  investment and


                                       3
<PAGE>

economic research,  trading and investment  management for the All America Fund.
All brokers'  commissions,  transfer  taxes and other fees relating to purchases
and sales of investments for the All America Fund shall be paid out of assets of
the All America Fund.

       7.  Services  Not  Exclusive.  The  services  rendered by the  Subadviser
pursuant to this  Agreement are not to be deemed  exclusive,  and the Subadviser
may render similar services to other entities so long as its services under this
Agreement are not impaired or interfered with.

       It is  understood  that  the  Subadviser  or its  affiliates  may use any
investment  research  obtained  for  the  benefit  of the  All  America  Fund in
providing investment advice to its other investment advisory accounts or for use
in  managing  their own  accounts.  Conversely,  such  supplemental  information
obtained by the placement of business for the All America Fund or other entities
advised  by  the  Subadviser  may be  considered  by and  may be  useful  to the
Subadviser in carrying out its obligations to the All America Fund.

       When the Subadviser deems the purchase or sale of a security to be in the
best  interests of the All America Fund as well as other  accounts or companies,
it may, to the extent  permitted by applicable laws and regulations but will not
be obligated to,  aggregate  the  securities to be sold or purchased for the All
America Fund with those to be sold or purchased for other  accounts or companies
in order to obtain favorable  execution and low brokerage  commissions.  In that
event,  allocation of the securities  purchased or sold, as well as the expenses
incurred in the  transaction,  will be made by the  Subadviser  in the manner it
considers to be most equitable and consistent with its fiduciary  obligations to
the All America Fund and to such other  accounts or  companies.  The  Investment
Company  recognizes  that in some cases this procedure may adversely  affect the
price  paid  or  received  by All  America  Fund  or the  size  of the  position
obtainable or disposable for the All America Fund.

       8. Term of Agreement.  This Agreement will continue from year to year but
only so long as such  continuance  is  specifically  approved at least  annually
either (i) by the Board of Directors of the Investment Company or (ii) by a vote
of a majority of the  outstanding  voting  securities  of the All America  Fund,
provided that in either event such continuance will also be approved by the vote
of a majority of the directors who are not interested persons (as defined in the
Investment  Company  Act)  of  the  Investment  Company,  the  Adviser,  or  the
Subadviser, cast in person at a meeting called for the purpose of voting on such
approval.  In  connection  with such  approvals,  the  Adviser  and the Board of
Directors  of the  Investment  Company  shall  request  and  evaluate,  and  the
Subadviser  shall furnish,  such  information as may be reasonably  necessary to
evaluate the terms of this Agreement. This Agreement:

            (a) shall be  subject to  termination,  without  the  payment of any
      penalty,  by the  Subadviser on one hundred eighty days' written notice to
      the Adviser and the Investment Company;

            (b) shall be  subject to  termination,  without  the  payment of any
      penalty,  by the  Adviser  or the  Board of  Directors  of the  Investment
      Company,  or by vote of a majority  of the


                                       4
<PAGE>

      outstanding  shares of the All America  Fund,  in each case on sixty days'
      written notice to the Subadviser;

            (c) shall not be amended without specific approval of such amendment
      by the Adviser and (i) the Board of Directors of the  Investment  Company,
      or by the vote of a majority of the outstanding  shares of the All America
      Fund,  and (ii) a majority of those  members of the Board of  Directors of
      the Investment Company who are not parties to this Agreement or interested
      persons  of such a party,  cast in  person  at a  meeting  called  for the
      purpose of voting on such approval; and

            (d) shall automatically terminate upon assignment by either party.

       9.  Recordkeeping.  The  Subadviser  agrees that all accounts and records
that it  maintains  for the  Investment  Company  shall be the  property  of the
Investment  Company  and  that  it will  surrender  promptly  to the  designated
officers of the  Investment  Company any or all such  accounts  and records upon
request.  The Subadviser further agrees to preserve for the period prescribed by
the rules and  regulations of the  Securities  and Exchange  Commission all such
records and  accounts as are required to be  maintained  pursuant to said rules.
The  Subadviser  also agrees  that it will  maintain  all  records and  accounts
regarding the investment  activities with respect to the Allocated Assets of the
All America Fund in a confidential manner. All such accounts or records shall be
made  available,  within five (5)  business  days of a written  request,  to the
Investment  Company's  accountants or auditors during regular  business hours at
the Subadviser's offices. In addition, the Subadviser will provide any materials
as are required to be maintained  pursuant to said rules.  The  Subadviser  also
agrees that it will maintain all records and accounts  reasonably related to the
investment advisory services provided hereunder,  as may reasonably be requested
in  writing  by the  Adviser or the  members  of the Board of  Directors  of the
Investment  Company or as may be  required  by any  governmental  agency  having
jurisdiction over the Adviser, the Subadviser, or the Investment Company.

       10.  Interested and Affiliated  Persons.  It is understood  that members,
officers,  employees or agents of the Investment Company or the Adviser may also
be interested in the  Subadviser as directors,  officers,  employees,  agents or
otherwise.

       11. Liability of the Subadviser.  In the absence of willful  misfeasance,
bad faith,  gross  negligence or reckless  disregard of obligations or duties on
the part of the  Subadviser  (or its  officers,  directors,  agents,  employees,
controlling  persons,  and any  other  person  or  entity  affiliated  with  the
Subadviser  or  retained  by it to perform or assist in the  performance  of its
obligations  under  this  Agreement),  neither  the  Subadviser  nor  any of its
officers,  directors,  employees  or agents shall be subject to liability to the
Investment  Company or any shareholder of the Investment  Company for any act or
omission in the course of, or  connected  with,  rendering  services  hereunder,
including  without  limitation,  any error of judgment or mistake of law, or for
any loss suffered by the Investment Company or any shareholder of the Investment
Company in connection with the matters to which this Agreement  relates,  except
to the extent specified in the Investment  Company Act concerning loss resulting
from a breach of fiduciary duty with respect to the receipt of compensation  for
services.


                                       5
<PAGE>

       12.  Governing  Law. This  Agreement is subject to the  provisions of the
Investment  Company  Act,  as  amended,  and the  rules and  regulations  of the
Securities  and  Exchange  Commission  thereunder,   including  such  exemptions
therefrom as the Securities and Exchange Commission may grant. Words and phrases
used herein shall be interpreted in accordance with that Act and those rules and
regulations, and such exemptions.

       13.  Miscellaneous.  The  Subadviser  shall submit to all  regulatory and
administrative  bodies having  jurisdiction  over the operations of the Adviser,
the  Subadviser or the  Investment  Company,  present or future,  any materials,
reasonably related to the investment  advisory services provided  hereunder,  as
may be reasonably  requested in writing by the Adviser or the Board of Directors
of the  Investment  Company or as may be  required  by any  governmental  agency
having jurisdiction.

       IN WITNESS  WHEREOF,  the parties  hereto  have  caused this  Subadvisory
Agreement to be duly executed as of the day and year first above written.

                                          MUTUAL OF AMERICA CAPITAL
                                          MANAGEMENT CORPORATION

                                          By: /s/ Thomas J. Verage
`                                             ----------------------------------
                                              Name:   Thomas J. Verage
                                              Title: Senior Vice President


                                          JAMES DRAVO OELSCHLAGER d/b/a/
                                              OAK ASSOCIATES

                                          By: /s/ James Dravo Oelschlager
                                              ----------------------------------
                                              Name:
                                              Title:


                                       6



                                                                    Exhibit 4(h)

                              SUBADVISORY AGREEMENT

       SUBADVISORY  AGREEMENT,  made this 2nd day of May,  1994,  by and between
Mutual of America Capital Management  Corporation,  a Delaware  corporation (the
"Adviser"),   and   Palley-Needelman   Asset  Management,   Inc.,  a  California
corporation (the "Subadviser").

                               W I T N E S S E T H

       WHEREAS,  Mutual  of  America  Investment  Corporation  (the  "Investment
Company") is engaged in business as a diversified open-end management investment
company and is registered as such under the Investment  Company Act of 1940 (the
"Investment Company Act"); and

       WHEREAS, the Investment Company is comprised of eight separate Funds, one
of which is  designated,  and is  hereinafter  referred  to, as the "All America
Fund"; and

       WHEREAS,  the Adviser renders  advisory  services and is registered as an
investment adviser under the Investment Advisers Act of 1940; and

       WHEREAS,  the  Investment  Company  entered into an  investment  advisory
agreement dated April 21, 1993 (the "Original  Investment  Advisory  Agreement")
with Mutual of America Life Insurance Company (the "Insurance Company"); and

       WHEREAS,  the  obligations  of the  Insurance  Company under the Original
Investment  Advisory  Agreement  were  assumed by the  Adviser,  pursuant  to an
assumption  agreement dated November 3, 1993,  between the Insurance Company and
the Adviser (the  "Assumption  Agreement"),  which was accepted and agreed to by
the  Investment  Company  as of such  date  (the  Original  Investment  Advisory
Agreement  and the  Assumption  Agreement  together,  the  "Investment  Advisory
Agreement"); and

       WHEREAS,  the  Adviser  renders  investment   supervisory  and  corporate
administration  services to the Investment  Company, on the terms and conditions
set forth in the Investment Advisory Agreement; and

       WHEREAS,  the Investment  Advisory Agreement was supplemented on December
30, 1993 with respect to the  management  of the assets of the All America Fund;
and

       WHEREAS, the Subadviser renders advisory services and is registered as an
investment adviser under the Investment Advisers Act of 1940; and

       WHEREAS,   the  Adviser  desires  to  retain  the  Subadviser  to  render
investment  supervisory services to the Adviser in connection with the Adviser's
responsibilities  to the All America Fund with respect to such assets of the All
America Fund as shall be allocated to the Subadviser (the "Allocated Assets") in
the manner and on the terms hereinafter set forth;

<PAGE>

       NOW THEREFORE, in consideration of the promises and the mutual agreements
herein contained, the Adviser and the Subadviser agree as follows:

       1. General.  For the period and on the terms set forth in this Agreement,
the Subadviser  shall manage the investment  and  reinvestment  of the Allocated
Assets of the All America Fund. The Subadviser agrees during such period, at its
own  expense  and  subject to the  supervision  of the  Adviser and the Board of
Directors of the Investment  Company, to render the investment advisory services
and assume the obligations  herein set forth, for the  compensation  provided by
this Agreement.

       2.  Investment  Management  Services.  In carrying out its obligations to
manage  the  investment  and  reinvestment  of the  Allocated  Assets of the All
America Fund,  the  Subadviser  shall as  appropriate  and  consistent  with the
limitations set forth in Paragraph 3 hereof:

            (a) perform  research  and obtain and evaluate  pertinent  economic,
      statistical and financial data relevant to the investment  policies of the
      All America Fund as set forth in the then effective registration statement
      for the Investment  Company,  as amended from time to time, filed with the
      Securities and Exchange Commission (the "Registration Statement");

            (b)  review  with the  Adviser  and the  Board of  Directors  of the
      Investment Company the overall investment plan for the Allocated Assets of
      the All America Fund;

            (c) make  investments  consistent with any overall  investment plans
      previously  approved  by the  Adviser  and the Board of  Directors  of the
      Investment Company;

            (d) take  such  steps as are  necessary  to  implement  any  overall
      investment plans approved by the Adviser and the Board of Directors of the
      Investment Company, including making and carrying out decisions to acquire
      or dispose of permissible  investments,  management of investments and any
      other property  constituting the Allocated Assets of the All America Fund,
      and providing or obtaining  such services as may be necessary in managing,
      acquiring or disposing of investments;

            (e)  regularly  report to the Adviser and the Board of  Directors of
      the Investment Company with respect to all investment  activity associated
      with the management of the Allocated Assets of the All America Fund;

            (f) maintain all required accounts, records, memoranda, instructions
      or   authorizations   relating  to  the   acquisition  or  disposition  of
      investments for the All America Fund; and

            (g) provide all the office space,  facilities,  equipment,  material
      and personnel necessary to fulfill its obligations under this Agreement.

       3.  Limitations  on  Management  Services.  The  Subadviser  shall render
investment  advisory  services with respect to the  Allocated  Assets of the All
America Fund and effect all


                                       2
<PAGE>

purchases and sales of investments  for the Allocated  Assets of the All America
Fund in a manner consistent with:

            (a) the investment  objectives,  policies and  restrictions  for the
      Allocated  Assets of the All  America  Fund as stated in the  Registration
      Statement;

            (b) the procedures and guidelines  adopted by the Board of Directors
      of the Investment Company; and

            (c) the provisions of the Investment Company Act.

       Any  investment  program  undertaken by the  Subadviser  pursuant to this
Agreement shall at all times be subject to any directives of the Adviser and the
Board of Directors of the Investment  Company or any duly constituted  committee
thereof acting pursuant to like authority.

       4. Brokerage and Research Services. The Subadviser shall, with respect to
the Allocated Assets of the All America Fund,  subject to the supervision of the
Adviser and the Board of Directors of the  Investment  Company,  arrange for the
placement of orders for the All America Fund,  either  directly with the issuer,
with any  broker-dealer  or underwriter  that  specializes in the securities for
which  the order is made or with any other  broker  or  dealer  selected  by the
Subadviser, subject to the following limitations.

       The  Subadviser  is authorized to select the brokers or dealers that will
execute  the  purchases  and  sales of  portfolio  securities  constituting  the
Allocated Assets of the All America Fund and will use its best efforts to obtain
the most  favorable net results,  taking into account all  appropriate  factors,
including  price,  dealer spread or commission,  if any, size of the transaction
and difficulty of execution. However, in selecting brokers or dealers to execute
a particular transaction and in evaluating the best overall terms available, the
Subadviser may consider the brokerage and research  services (as those terms are
defined in Section 28(e) of the Securities Exchange Act of 1934) provided to All
America Fund and/or other  accounts  over which the  Subadviser  or an affiliate
exercises investment  discretion.  The Subadviser will periodically evaluate the
statistical data, research and other investment services provided by brokers and
dealers to it. Such services may be used by the  Subadviser  in connection  with
the  performance of its  obligations  under this Agreement or in connection with
other advisory activities or investment operations.

       5. Compensation.  As compensation for its investment advisory services to
the Adviser,  the  Subadviser  shall receive an amount  calculated  daily at the
annual rate of .30% of the value of the net assets  constituting  the  Allocated
Assets of the All America Fund.

       6.  Expenses.  The  Subadviser  shall  be  responsible  for all  expenses
incurred  in  performing  the  investment  advisory  services  herein set forth,
including  costs of  compensating  and furnishing  office space for officers and
employees of the  Subadviser  connected with  investment and economic  research,
trading  and  investment  management  for the All  America


                                       3
<PAGE>

Fund.  All  brokers'  commissions,  transfer  taxes and other fees  relating  to
purchases and sales of investments for the All America Fund shall be paid out of
assets of the All America Fund.

       7.  Services  Not  Exclusive.  The  services  rendered by the  Subadviser
pursuant to this  Agreement are not to be deemed  exclusive,  and the Subadviser
may render similar services to other entities so long as its services under this
Agreement are not impaired or interfered with.

       It is  understood  that  the  Subadviser  or its  affiliates  may use any
investment  research  obtained  for  the  benefit  of the  All  America  Fund in
providing investment advice to its other investment advisory accounts or for use
in  managing  their own  accounts.  Conversely,  such  supplemental  information
obtained by the placement of business for the All America Fund or other entities
advised  by  the  Subadviser  may be  considered  by and  may be  useful  to the
Subadviser in carrying out its obligations to the All America Fund.

       When the Subadviser deems the purchase or sale of a security to be in the
best  interests of the All America Fund as well as other  accounts or companies,
it may, to the extent  permitted by applicable laws and regulations but will not
be obligated to,  aggregate  the  securities to be sold or purchased for the All
America Fund with those to be sold or purchased for other  accounts or companies
in order to obtain favorable  execution and low brokerage  commissions.  In that
event,  allocation of the securities  purchased or sold, as well as the expenses
incurred in the  transaction,  will be made by the  Subadviser  in the manner it
considers to be most equitable and consistent with its fiduciary  obligations to
the All America Fund and to such other  accounts or  companies.  The  Investment
Company  recognizes  that in some cases this procedure may adversely  affect the
price  paid  or  received  by All  America  Fund  or the  size  of the  position
obtainable or disposable for the All America Fund.

       8. Term of Agreement.  This Agreement will continue from year to year but
only so long as such  continuance  is  specifically  approved at least  annually
either (i) by the Board of Directors of the Investment Company or (ii) by a vote
of a majority of the  outstanding  voting  securities  of the All America  Fund,
provided that in either event such continuance will also be approved by the vote
of a majority of the directors who are not interested persons (as defined in the
Investment  Company  Act)  of  the  Investment  Company,  the  Adviser,  or  the
Subadviser, cast in person at a meeting called for the purpose of voting on such
approval.  In  connection  with such  approvals,  the  Adviser  and the Board of
Directors  of the  Investment  Company  shall  request  and  evaluate,  and  the
Subadviser  shall furnish,  such  information as may be reasonably  necessary to
evaluate the terms of this Agreement. This Agreement:

            (a) shall be  subject to  termination,  without  the  payment of any
      penalty,  by the  Subadviser on one hundred eighty days' written notice to
      the Adviser and the Investment Company;

            (b) shall be  subject to  termination,  without  the  payment of any
      penalty,  by the  Adviser  or the  Board of  Directors  of the  Investment
      Company,  or by vote of a majority  of the  outstanding  shares of the All
      America  Fund,  in  each  case  on  sixty  days'  written  notice  to  the
      Subadviser;


                                       4
<PAGE>

            (c) shall not be amended without specific approval of such amendment
      by the Adviser and (i) the Board of Directors of the  Investment  Company,
      or by the vote of a majority of the outstanding  shares of the All America
      Fund,  and (ii) a majority of those  members of the Board of  Directors of
      the Investment Company who are not parties to this Agreement or interested
      persons  of such a party,  cast in  person  at a  meeting  called  for the
      purpose of voting on such approval; and

            (d) shall automatically terminate upon assignment by either party.

       9.  Recordkeeping.  The  Subadviser  agrees that all accounts and records
that it  maintains  for the  Investment  Company  shall be the  property  of the
Investment  Company  and  that  it will  surrender  promptly  to the  designated
officers of the  Investment  Company any or all such  accounts  and records upon
request.  The Subadviser further agrees to preserve for the period prescribed by
the rules and  regulations of the  Securities  and Exchange  Commission all such
records and  accounts as are required to be  maintained  pursuant to said rules.
The  Subadviser  also agrees  that it will  maintain  all  records and  accounts
regarding the investment  activities with respect to the Allocated Assets of the
All America Fund in a confidential manner. All such accounts or records shall be
made  available,  within five (5)  business  days of a written  request,  to the
Investment  Company's  accountants or auditors during regular  business hours at
the Subadviser's offices. In addition, the Subadviser will provide any materials
as are required to be maintained  pursuant to said rules.  The  Subadviser  also
agrees that it will maintain all records and accounts  reasonably related to the
investment advisory services provided hereunder,  as may reasonably be requested
in  writing  by the  Adviser or the  members  of the Board of  Directors  of the
Investment  Company or as may be  required  by any  governmental  agency  having
jurisdiction over the Adviser, the Subadviser, or the Investment Company.

       10.  Interested and Affiliated  Persons.  It is understood  that members,
officers,  employees or agents of the Investment Company or the Adviser may also
be interested in the  Subadviser as directors,  officers,  employees,  agents or
otherwise.

       11. Liability of the Subadviser.  In the absence of willful  misfeasance,
bad faith,  gross  negligence or reckless  disregard of obligations or duties on
the part of the  Subadviser  (or its  officers,  directors,  agents,  employees,
controlling  persons,  and any  other  person  or  entity  affiliated  with  the
Subadviser  or  retained  by it to perform or assist in the  performance  of its
obligations  under  this  Agreement),  neither  the  Subadviser  nor  any of its
officers,  directors,  employees  or agents shall be subject to liability to the
Investment  Company or any shareholder of the Investment  Company for any act or
omission in the course of, or  connected  with,  rendering  services  hereunder,
including  without  limitation,  any error of judgment or mistake of law, or for
any loss suffered by the Investment Company or any shareholder of the Investment
Company in connection with the matters to which this Agreement  relates,  except
to the extent specified in the Investment  Company Act concerning loss resulting
from a breach of fiduciary duty with respect to the receipt of compensation  for
services.


                                       5
<PAGE>

       12.  Governing  Law. This  Agreement is subject to the  provisions of the
Investment  Company  Act,  as  amended,  and the  rules and  regulations  of the
Securities  and  Exchange  Commission  thereunder,   including  such  exemptions
therefrom as the Securities and Exchange Commission may grant. Words and phrases
used herein shall be interpreted in accordance with that Act and those rules and
regulations, and such exemptions.

       13.  Miscellaneous.  The  Subadviser  shall submit to all  regulatory and
administrative  bodies having  jurisdiction  over the operations of the Adviser,
the  Subadviser or the  Investment  Company,  present or future,  any materials,
reasonably related to the investment  advisory services provided  hereunder,  as
may be reasonably  requested in writing by the Adviser or the Board of Directors
of the  Investment  Company or as may be  required  by any  governmental  agency
having jurisdiction.

       IN WITNESS  WHEREOF,  the parties  hereto  have  caused this  Subadvisory
Agreement to be duly executed as of the day and year first above written.

                                        MUTUAL OF AMERICA CAPITAL
                                        MANAGEMENT CORPORATION

                                        By: /s/ Thomas J. Verage
                                            ----------------------------------
                                             Name: Thomas J. Verage
                                             Title: Senior Vice President

                                        PALLEY-NEEDELMAN ASSET MANAGEMENT, INC.

                                        By: /s/ Chet Needelman
                                            ----------------------------------
                                            Name: Chet Needelman
                                            Title: CEO


                                       6


CHASE
[LOGO]                                                                 EXHIBIT 7

                                   [FORM OF]
                     DOMESTIC AND GLOBAL CUSTODY AGREEMENT


     This AGREEMENT is effective            , 1996, and is between THE CHASE
MANHATTAN BANK, N.A. (the "Bank") and MUTUAL OF AMERICA INVESTMENT CORPORATION
(the "Customer").

1. CUSTOMER ACCOUNTS.

  The Bank agrees to establish and maintain the following accounts
     ("Accounts"):

  (a) A custody account in the name of the Customer ("Custody Account") for any
and all stocks, shares, bonds, debentures, notes, mortgages or other obligations
for the payment of money, bullion, coin and any certificates, receipts, warrants
or other instruments representing rights to receive, purchase or subscribe for
the same or evidencing or representing any other rights or interests therein,
including options, futures contracts and options on futures contracts, and other
similar property whether certificated or uncertificated or publicly or privately
issued as may be received by the Bank or its Subcustodian (as defined in Section
3) for the account of the Customer ("Securities"); and

  (b) A deposit account in the name of the Customer ("Deposit Account") for any
and all cash in any currency received by the Bank or its Subcustodian for the
account of the Customer. which cash shall not be subiect to withdrawal by draft
or check.

  The Customer warrants its authority to: 1) deposit the cash and Securities
("Assets") received in the Accounts and 2) give Instructions (as defined in
Section 11) concerning the Accounts. The Bank may deliver equivalent securities
of the same class in place of those deposited in the Custody Account.

  Upon written agreement between the Bank and the Customer, additional Accounts
may be established and separately accounted for as additional Accounts under the
terms of this Agreement.

2. MAINTENANCE OF SECURITIES AND CASH AT BANK AND SUBCUSTODIAN LOCATIONS.

     Unless Instructions specifically require another location acceptable to the
     Bank:

                                       1
<PAGE>

  (a) Securities will be held in the country or other jurisdiction in which the
principal trading market for such Securities is located, where such Securities
are to be presented for payment or where such Securities are acquired; and

  (b) Cash will be credited to an account in a country or other jurisdiction in
which such cash may be legally deposited or is the legal currency for the
payment of public or private debts.

  Cash may be held pursuant to Instructions in either interest or non-interest
bearing accounts as may be available for the particular currency. To the extent
Instructions are issued and the Bank can comply with such Instructions, the Bank
is authorized to maintain cash balances on deposit for the Customer with itself
or one of its affiliates at such reasonable rates of interest as may from time
to time be paid on such accounts, or in non-interest bearing accounts as the
Customer may direct, if acceptable to the Bank.

  If the Customer wishes to have any of its Assets held in the custody of an
institution other than the established Subcustodians as defined in Section 3 (or
their securities depositories), such arrangement must be authorized by a written
agreement, signed by the Bank and the Customer.

3. SUBCUSTODIANS AND SECURITIES DEPOSITORIES.

  The Bank may act under this Agreement in the countries and through the
subcustodians listed in Schedule A of this Agreement with which the Bank has
entered into subcustodial agreements ("Subcustodians"). The Customer authorizes
the Bank to hold Assets in the Accounts in accounts which the Bank has
established with one or more of its branches or Subcustodians. The Bank and
Subcustodians are authorized to hold any of the Securities in their account with
any securities depository in which they participate.

  The Bank reserves the right to add new, replace or remove Subcustodians. The
Customer will be given reasonable notice by the Bank of any amendment to
Schedule A regarding Subcustodians. Upon request by the Customer, the Bank will
identify the name, address and principal place of business of any Subcustodian
of the Customer's Assets and the name and address of the governmental agency or
other regulatory authority that supervises or regulates such Subcustodian.
Countries may be added or removed from Schedule A by the written agreement of
the Bank and the Customer, but the Bank reserves the right to remove
Subcustodians from Schedule A upon reasonable notice.

4. USE OF SUBCUSTODIAN.

     (a) The Bank will identify the Assets on its books as belonging to the
Customer.

     (b) A Subcustodian will hold such Assets together with assets belonging to
other customers of the Bank in accounts identified on such Subcustodian's books
as special custody accounts for the exclusive benefit of customers of the Bank.

                                       2
<PAGE>

  (c) Any Assets in the Accounts held by a Subcustodian will be subject only to
the instructions of the Bank or its agent. Any Securities held in a securities
depository for the account of a Subcustodian will be subject only to the
instructions of such Subcustodian.

  (d) Any agreement the Bank enters into with a Subcustodian for holding its
customer's assets shall provide that such assets will not be subject to any
right, charge, security interest, lien or claim of any kind in favor of such
Subcustodian except for safe custody or administration, and that the beneficial
ownership of such assets will be freely transferable without the payment of
money or value other than for safe custody or administration. The foregoing
shall not apply to the extent of any special agreement or arrangement made by
the Customer with any particular Subcustodian.

5. DEPOSIT ACCOUNT TRANSACTIONS.

  (a) The Bank or its Subcustodians will make payments from the Deposit Account
upon receipt of Instructions which include all information required by the Bank.

  (b) In the event that any payment to be made under this Section 5 exceeds the
funds available in the Deposit Account, the Bank, in its discretion, may advance
the Customer such excess amount which shall be deemed a loan payable on demand,
bearing interest at the rate customarily charged by the Bank on similar loans.

  (c) If the Bank credits the Deposit Account on a payable date, or at any time
prior to actual collection and reconciliation to the Deposit Account, with
interest, dividends, redemptions or any other amount due, the Customer will
promptly return any such amount upon oral or written notification: (i) that such
amount has not been received in the ordinary course of business or (ii) that
such amount was incorrectly credited. If the Customer does not promptly return
any amount upon such notification, the Bank shall be entitled, upon oral or
written notification to the Customer, to reverse such credit by debiting the
Deposit Account for the amount previously credited. The Bank or its Subcustodian
shall have no duty or obligation to institute legal proceedings, file a claim or
a proof of claim in any insolvency proceeding or take any other action with
respect to the collection of such amount, but may act for the Customer upon
Instructions after consultation with the Customer. With respect to domestic U.S.
and Canadian Securities (the latter if held in DTC), the "Autocredit" procedures
described in this subsection (c) shall apply.

6. CUSTODY ACCOUNT TRANSACFFONS.

  (a) Securities will be transferred, exchanged or delivered by the Bank or its
Subcustodian upon receipt by the Bank of Instructions which include all
information required by the Bank. Settlement and payment for Securities received
for, and delivery of Securities out of, the Custody Account may be made in
accordance with the customary or established securities trading or securities
processing practices and procedures in the jurisdiction or market in which the
transaction occurs, including, without limitation, delivery of Securities to a
purchaser, dealer or their agents against a receipt with the expectation of
receiving later payment and free delivery.

                                       3
<PAGE>

Delivery of Securities out of the Custody Account may also be made in any manner
specifically required by Instructions acceptable to the Bank.

  (b) The Bank, in its discretion, may credit or debit the Accounts on a
contractual settlement date with cash or Securities with respect to any sale,
exchange or purchase of Securities. Otherwise, such transactions will be
credited or debited to the Accounts on the date cash or Securities are actually
received by the Bank and reconciled to the Account.

  (i) The Bank may reverse credits or debits made to the Accounts in its
discretion and upon notice to the Customer if the related transaction fails to
settle within a reasonable period, determined by the Bank in its discretion,
after the contractual settlement date for the related transaction.

  (ii) If any Securities delivered pursuant to this Section 6 are returned by
the recipient thereof, the Bank may reverse the credits and debits of the
particular transaction within a reasonable time following the return.

7. ACTIONS OF THE BANK.

  The Bank shall follow Instructions received regarding assets held in the
Accounts. However, until it receives Instructions to the contrary, the Bank
will:

  (a) Present for payment any Securities which are called, redeemed or retired
or otherwise become payable and all coupons and other income items which call
for payment upon presentation, to the extent that the Bank or Subcustodian is
actually aware of such opportunities.

  (b) Execute in the name of the Customer such ownership and other certificates
as may be required to obtain payments in respect of Securities.

  (c) Exchange interim receipts or temporary Securities for definitive
Securities.

  (d) Appoint brokers and agents for any transaction involving the Securities,
including, without limitation, affiliates of the Bank or any Subcustodian.

  (e) Issue monthly statements to the Customer, and at other times mutually
agreed upon, identifying the Assets in the Accounts.

  The Bank will send the Customer an advice or notification of any transfers of
Assets to or from the Accounts. Such statements, advices or notifications shall
indicate the identity of the entity having custody of the Assets. Unless the
Customer sends the Bank a written exception or objection to any Bank statement
within sixty (60) days of receipt, the Customer shall be deemed to have approved
such statement. In such event, or where the Customer has otherwise approved any
such statement, the Bank shall, to the extent permitted by law, be released,
relieved and discharged with respect to all matters set forth in such statement
or reasonably implied therefrom as though it had been settled by the decree of a
court of competent jurisdiction in an action where

                                       4
<PAGE>

the Customer and all persons having or claiming an interest in the Customer or
the Customer's Accounts were parties.

  All collections of funds or other property paid or distributed in respect of
Securities in the Custody Account shall be made at the risk of the Customer. The
Bank shall have no liability for any loss occasioned by delay in the actual
receipt of notice by the Bank or by its Subcustodians of any payment, redemption
or other transaction regarding Securities in the Custody Account in respect of
which the Bank has agreed to take any action under this Agreement.

  8. CORPORATE ACTIONS; PROXIES; TAX RECLAIMS.

     (a) Corporate Actions.
         -----------------

     (i) Domestic U.S. and Canadian Securities (the latter if held in DTC). The
         ----------------------------------------------------------------
     Bank will send to the Customer or the Authorized Person for a Custody
     Account, such proxies (signed in blank, if issued in the name of the Bank's
     nominee or the nominee of a central depository) and communications with
     respect to Securities in the Custody Account as call for voting or relate
     to legal proceedings within a reasonable time after sufficient copies are
     received by the Bank for forwarding to its customers. In addition, the Bank
     will follow coupon payments, redemptions, exchanges or similar matters with
     respect to Securities in the Custody Account and advise the Customer or the
     Authorized Person for such Account of rights issued, tender offers or any
     other discretionary rights with respect to such Securities, in each case,
     of which the Bank has received notice from the issuer of or offeror for the
     Securities, or as to which notice is published in publications routinely
     utilized by the Bank for this purpose.

   (ii) Foreign Securities. Whenever the Bank receives information concerning
        ------------------
   the Securities which requires discretionary action by the beneficial owner of
   the Securities (other than a proxy), such as subscription rights, bonus
   issues, stock repurchase plans and rights offerings, or legal notices or
   other material intended to be transmitted to securities holders ("Corporate
   Actions"), the Bank will give the Customer notice of such Corporate Actions
   to the extent that the Bank's central corporate actions department has actual
   knowledge of a Corporate Action in time to notify its customers. When a
   rights entitlement or a fractional interest resulting from a rights issue,
   stock dividend, stock split or similar Corporate Action is received which
   bears an expiration date, the Bank will endeavor to obtain Instructions from
   the Customer or its Authorized Person, but if Instructions are not received
   in time for the Bank to take timely action, or actual notice of such
   Corporate Action was received too late to seek Instructions, the Bank is
   authorized to sell such rights entitlement or fractional interest and to
   credit the Deposit Account with the proceeds or take any other action it
   deems, in good faith, to be appropriate in which case it shall be held
   harmless for any such action.

  (b) Foreign Proxy Voting. As to non-U.S. Securities and Canadian Securities
      --------------------
not held in DTC, the Bank will provide proxy voting services only pursuant to a
separate agreement.

                                       5
<PAGE>

Proxy voting services may be provided by the Bank or, in whole or in part, by
one or more third parties appointed by the Bank (which may be affiliates of the
Bank).

(C) TAX RECLAIMS.
    ------------

(i) Subject to the provisions hereof, the Bank will apply for a reduction of
withholding tax and any refund of any tax paid or tax credits which apply in
each applicable market in respect of income payments on Securities for the
benefit of the Customer which the Bank believes may be available to such
Customer.

(ii) The provision of tax reclaim services by the Bank is conditional upon the
Bank receiving from the beneficial owner of Securities (A) a declaration of its
identity and place of residence and (B) certain other documentation (pro forma
copies of which shall be provided by the Bank). The Customer acknowledges that,
if the Bank does not receive such declarations, documentation and information,
additional United Kingdom taxation will be deducted from all income received in
respect of Securities issued outside the United Kingdom and that U.S. non-
resident alien tax or U.S. backup withholding tax will be deducted from U.S.
source income. The Customer shall provide to the Bank such documentation and
information as the Bank may reasonably require in connection with taxation, and
warrants that, when given, this information shall be true and correct in every
material respect, not misleading in any way, and contain all material
information. The Customer undertakes to notify the Bank immediately if any such
information requires updating or amendment.

(iii) The Bank shall not be liable to the Customer or any third party for any
tax, fines or penalties payable by the Bank or the Customer, and shall be
indemnified accordingly, whether these result from the inaccurate completion of
documents by the Customer or any third party, or as a result of the provision to
the Bank or any third party of inaccurate or misleading information or the
withholding of material information by the Customer or any other third party, or
as a result of any delay of any revenue authority or any other matter beyond the
control of the Bank.

(iv) The Customer confirms that the Bank is authorized to deduct from any cash
received or credited to the Cash Account any taxes or levies required by any
revenue or governmental authority for whatever reason in respect of the
Securities or Cash Accounts.

(v) The Bank shall perform tax reclaim services only with respect to taxation
levied by the revenue authorities of the countries notified to the Customer from
time to time and the Bank may, by notification in writing, at its absolute
discretion, supplement or amend the markets in which the tax

                                       6
<PAGE>

reclaim services are offered. Other than as expressly provided in this
subclause, the bank shall have no responsibility with regard to the Customer's
tax position or status in any jurisdiction.

(vi) The Customer confirms that the Bank is authorised to disclose any
information requested by any revenue authority or any governmental body in
relation to the Customer or the Securities and/or Cash held for the Customer.

(vii) Tax reclaim services may be provided by the Bank or, in whole or in part,
by one or more third parties appointed by the Bank (which may be affiliates of
the Bank); provided that the Bank shall be liable for the performance of any
such third party to the same extent as the Bank would have been if it performed
such services itself.

  9.  NOMINEES.

  Securities which are ordinarily held in registered form may be registered in a
nominee name of the Bank, Subcustodian or securities depository, as the case may
be. The Bank may, with notice to the Customer, cause any such Securities to
cease to be registered in the name of any such nominee and to be registered in
the name of the Customer. In the event that any Securities registered in a
nominee name are called for partial redemption by the issuer, the Bank may allot
the called portion to the respective beneficial holders of such class of
security in any manner the Bank deems to be fair and equitable. The Customer
agrees to hold the Bank, Subcustodians, and their respective nominees harmless
from any liability arising directly or indirectly from their status as a mere
record holder of Securities in the Custody Account.

10. AUTHORIZED PERSONS.

  As used in this Agreement, the term "Authorized Person" means employees or
agents including investment managers as have been designated by written notice
from the Customer, attested to or certified by its Secretary or Assistant
Secretary with the Corporate Seal affixed, or its designated agent to act on
behalf of the Customer under this Agreement. Such persons shall continue to be
Authorized Persons until such time as the Bank receives Instructions from the
Customer or its designated agent that any such employee or agent is no longer an
Authorized Person.

11. INSTRUCTIONS.

  Except as provided below, the term "Instructions" means written instructions
of any Authorized Person received by the Bank, via telex, TWX, facsimile
transmission, bank wire or other teleprocess or instructions given by an
electronic or trade information system acceptable to the Bank which the Bank
believes in good faith to have been given by Authorized Persons or which are
transmitted with proper testing or authentication pursuant to terms and
conditions which the Bank may specify. Unless otherwise expressly provided, all
Instructions shall continue in full force and effect until canceled or
superseded. The Customer shall be responsible

                                       7
<PAGE>

for safeguarding any testkeys, identification codes or other security devices
which the Bank shall make available to the Customer or its Authorized Persons.
The Bank shall make test keys, identification codes or other security devices
available only to the persons specified on Schedule B hereto, as modified from
time to time by the written agreement of the Customer and the Bank.

     Oral Instructions may only be given for transfers between Accounts and the
Bank may rely upon such Instructions if it believes in good faith that the
Instruction was issued by an Authorized Person.  The Bank may electronically
record any Instructions given by telephone, and any other telephone discussions
with respect to the Custody Account.

12.  STANDARD OF CARE; LIABILITIES.

     (a) The Bank shall be responsible for the performance of only such duties
as are set forth in this Agreement or expressly contained in Instructions which
are consistent with the provisions of this Agreement as follows:

     (i) The Bank will use reasonable care with respect to its obligations under
     this Agreement and the safekeeping of Assets by exercising the same degree
     of care with respect to the Assets as it would with respect to its own
     securities and property and will indemnify the Customer and hold the
     Customer harmless from any loss or liability (including, without
     limitation, the reasonable fees and disbursements of outside counsel)
     incurred by the Customer by reason of the negligence (whether through
     action or inaction) or willful misconduct of the Bank. The Bank shall be
     liable to the Customer for any loss which shall occur as the result of the
     failure of a Subcustodian to exercise reasonable care with respect to the
     safekeeping of such Assets to the same extent that the Bank would be liable
     to the Customer if the Bank were holding such Assets in New York. In the
     event of any loss to the Customer by reason of the failure of the Bank or
     its Subcustodian to utilize reasonable care, the Bank shall be liable to
     the Customer only to the extent of the Customer's direct damages, to be
     determined based on the market value of the property which is the subject
     of the loss at the date of discovery of such loss and without reference to
     any special conditions or circumstances. The Bank will not be responsible
     for the insolvency of any Subcustodian which is not a branch or affiliate
     of Bank.

     (ii) The Bank will not be responsible for any act, omission, default or the
     solvency of any broker or agent which it or a Subcustodian appoints unless
     such appointment was made negligently or in bad faith.

     (iii)   The Bank shall be without liability to the Customer for any action
     taken or omitted by the Bank whether pursuant to Instructions or otherwise
     within the scope of this Agreement if such act or omission was in good
     faith, without negligence. In performing its obligations under this
     Agreement, the Bank may rely on the genuineness of any document which it
     believes in good faith to have been validly executed.

                                       8
<PAGE>

     (iv) The Customer agrees to pay for and hold the Bank harmless from any
     liability or loss resulting from the imposition or assessment of any taxes
     or other governmental charges, and any related expenses with respect to
     income from or Assets in the Accounts, other than taxes imposed as a
     consequence of the Bank's failure to perform the services set forth in
     Section 8(c) of this Agreement.

     (v) The Bank shall be entitled to rely, and may act, upon the written
     advice of counsel (who may be counsel for the Customer) on all matters and
     shall be without liability for any action reasonably taken or omitted
     pursuant to such advice.

     (vi) The Bank need not maintain any insurance for the benefit of the
     Customer.

     (vii)  Without limiting the foregoing, the Bank shall not be liable for any
     loss which results from: 1) the general risk of investing, or 2) investing
     or holding Assets in a particular country including, but not limited to,
     losses resulting from nationalization, expropriation or other governmental
     actions; regulation of the banking or securities industry; currency
     restrictions, devaluations or fluctuations; and market conditions which
     prevent the orderly execution of securities transactions or affect the
     value of Assets.

     (viii)  Neither party shall be liable to the other for any loss due to
     forces beyond their control including, but not limited to strikes or work
     stoppages, acts of war or terrorism, insurrection, revolution, nuclear
     fusion, fission or radiation, or acts of God.

     (ix) The Customer agrees to indemnify the Bank and to hold the Bank
     harmless from any loss or liability (including, without limitation, the
     reasonable fees and disbursements of outside counsel) incurred by the Bank
     arising out of or related to this Agreement and services performed
     hereunder, except such loss or liabilty that results from the Bank's
     failure to exercise the standard of care set forth in paragraph (a)(i) of
     this Section 12. The Customer shall be liable to the Bank only to the
     extent of the Bank's direct damages, without reference to any special
     conditions or circumstances.

     (b) Consistent with and without limiting the first paragraph of this
Section 12, it is specifically acknowledged that the Bank shall have no duty or
responsibility to:

     (i) question Instructions or make any suggestions to the Customer or an
     Authorized Person regarding such Instructions;

     (ii) supervise or make recommendations with respect to investments or the
     retention of Securities;

                                       9
<PAGE>

     (iii)  advise the Customer or an Authorized Person regarding any default in
     the payment of principal or income of any security other than as provided
     in Section 5(c) of this Agreement;

     (iv) evaluate or report to the Customer or an Authorized Person regarding
     the financial condition of any broker, agent or other party to which
     Securities are delivered or payments are made pursuant to this Agreement;

     (v) review or reconcile trade confirmations received from brokers.  The
     Customer or its Authorized Persons (as defined in Section 10) issuing
     Instructions shall bear any responsibility to review such confirmations
     against Instructions issued to and statements issued by the Bank.

     (c) The Customer authorizes the Bank to act under this Agreement
notwithstanding that the Bank or any of its divisions or affiliates may have a
material interest in a transaction, or circumstances are such that the Bank may
have a potential conflict of duty or interest including the fact that the Bank
or any of its affiliates may provide brokerage services to other customers, act
as financial advisor to the issuer of Securities, act as a lender to the issuer
of Securities, act in the same transaction as agent for more than one customer,
have a material interest in the issue of Securities, or earn profits from any of
the activities listed herein.

13.  FEES AND EXPENSES.

     The Customer agrees to pay the Bank for its services under this Agreement
such amount set forth in Schedule C hereto, as modified from time to time by the
written agreement of the Bank and the Customer, together with the Bank's
reasonable out-of-pocket or incidental expenses, including, but not limited to,
legal fees.  The Bank shall have a lien on and is authorized to charge any
Accounts of the Customer for any amount owing to the Bank under any provision of
this Agreement.  In case of any dispute between the Customer and the Bank as to
an amount owed, no lien shall be applicable and no charge shall be made until
the dispute has been settled, adjudicated or arbitrated.

14.  MISCELLANEOUS.

     (a) Foreign Exchange Transactions.  To facilitate the administration of the
         ------------------------------
Customer's trading and investment activity, the Bank is authorized to enter into
spot or forward foreign exchange contracts with the Customer or an Authorized
Person for the Customer and may also provide foreign exchange through its
subsidiaries, affiliates or Subcustodians.  Instructions, including standing
instructions, may be issued with respect to such contracts but the Bank may
establish rules or limitations concerning any foreign exchange facility made
available.  In all cases where the Bank, its subsidiaries, affiliates or
Subcustodians enter into a foreign exchange contract related to Accounts, the
terms and conditions of the then current foreign exchange contract of the Bank,
its subsidiary, affiliate or Subcustodian and, to the extent not inconsistent,
this Agreement shall apply to such transaction.

                                       10
<PAGE>

     (b) Certification of Residency, etc.  The Customer certifies that it is a
         --------------------------------
resident of the United States and agrees to notify the Bank of any changes in
residency.  The Bank may rely upon this certification or the certification of
such other facts as may be required to administer the Bank's obligations under
this Agreement.  The Customer will indemnify the Bank against all losses,
liability, claims or demands arising directly or indirectly from any such
certifications.

     (c) Access to Records.  The Bank shall allow the Customer's independent
         ------------------
public accountants reasonable access to the records of the Bank relating to the
Assets as is required in connection with their examination of books and records
pertaining to the Customer's affairs.  Any representative of an appropriate
regulatory body shall be entitled to the same access as the Customer's
independent public accountants, but only when an appropriate officer of the
Customer has furnished the Bank with written instructions to that effect.
Subject to restrictions under applicable law, the Bank shall also obtain an
undertaking to permit the Customer's independent public accountants reasonable
access to the records of any Subcustodian which has physical possession of any
Assets as may be required in connection with the examination of the Customer's
books and records.  Upon reasonable request by the Customer, the Bank will
furnish copies of documents filed in connection with tax reclaims.

     (d) Governing Law; Successors and Assigns.  This Agreement shall be
         --------------------------------------
governed by the laws of the State of New York and shall not be assignable by
either party, but shall bind the successors in interest of the Customer and the
Bank.

     (e) Entire Agreement; Applicable Riders.  Customer and Bank agree that the
         ------------------------------------
following Riders are made a part of this Agreement:

       X   ERISA
      ---

       X   MUTUAL FUND
      ---

       X   SPECIAL TERMS AND CONDITIONS
      ---

     The following Schedules are part of this Agreement:

     Schedule A -  List of Countries, Subcustodians and Securities Depositories;
     ----------

     Schedule B -  Customer Personnel to Receive Security Information; and
     ----------

     Schedule C -  Fees of Bank.
     ----------


     There are no other provisions of this Agreement and this Agreement
supersedes any other agreements, whether written or oral, between the parties.
Any amendment to this Agreement must be in writing, executed by both parties.

                                       11
<PAGE>

     (f) Severability.  In the event that one or more provisions of this
         -------------
Agreement are held invalid, illegal or enforceable in any respect on the basis
of any particular circumstances or in any jurisdiction, the validity, legality
and enforceability of such provision or provisions under other circumstances or
in other jurisdictions and of the remaining provisions will not in any way be
affected or impaired.

     (g) Waiver.  Except as otherwise provided in this Agreement, no failure or
         -------
delay on the part of either party in exercising any power or right under this
Agreement operates as a waiver, nor does any single or partial exercise of any
power or right preclude any other or further exercise, or the exercise of any
other power or right.  No waiver by a party of any provision of this Agreement,
or waiver of any breach or default, is effective unless in writing and signed by
the party against whom the waiver is to be enforced.

     (h) Notices.  All notices under this Agreement shall be effective when
         --------
actually received.  Any notices or other communications which may be required
under this Agreement are to be sent to the parties at the following addresses or
such other addresses as may subsequently be given to the other party in writing:


     Bank:     The Chase Manhattan Bank, N.A.
               110 West 52nd Street
               New York, NY  10019
               Attention:  John K. Breitweig

               or facsimile: (212) 554-2905


     Customer: Mutual of America Investment Corporation
               320 Park Avenue
               New York, NY  10022
               Attention:  Allen Bruckheimer

               or facsimile:  (212) 224-2535

     (i) Termination.  This Agreement may be terminated by the Customer or the
         ------------
Bank by giving sixty (60) days written notice to the other.  If notice of
termination is given, the Customer shall, within sixty (60) days following
receipt of the notice, deliver to the Bank Instructions specifying the names of
the persons to whom the Bank shall deliver the Assets. The Bank will deliver the
Assets to the persons so specified, after deducting any amounts which the Bank
determines in good faith to be owed to it under Section 13.  If within sixty
(60) days following receipt of a notice of termination by either party, the Bank
does not receive Instructions from the Customer specifying the names of the
persons to whom the Bank shall deliver the Assets, the Bank, at its election,
may deliver the Assets to a bank or trust company doing business in the State of
New York, with aggregate capital and undivided profits (as shown by its last
published report) of not less than two million dollars ($2,000,000), to be held
and disposed of pursuant to

                                       12
<PAGE>

the provisions of this Agreement, or may continue to hold the Assets until
Instructions are provided to the Bank.



                              MUTUAL OF AMERICA INVESTMENT
                              CORPORATION


                              By:______________________________________
                              Title:
                              Date:


                              THE CHASE MANHATTAN BANK, N.A.


                              By:______________________________________
                              Title:
                              Date:

                                       13
<PAGE>

STATE OF NEW YORK)
                    :  ss.
COUNTY OF NEW YORK)


     On this      day of                 , 1996, before me personally came,
to me known, who being by me duly sworn, did depose and say that he/she
resides in
                   at                                     ; that he/she

is               of  MUTUAL OF  AMERICA  INVESTMENT  CORPORATION,   the   entity
described in and which executed  the foregoing instrument; that he/she knows the
seal of said entity, that the seal affixed to said instrument is such seal, that
it was so affixed by order of said entity, and that he/she signed his/her name
thereto by like order.






Sworn to before me this ______________

day of ______________, 19_____.

      Notary

                                       14
<PAGE>

STATE OF NEW YORK   )
                    :  ss.
COUNTY OF NEW YORK       )


     On this            day of              ,1996, before me personally came
          , to me known, who being by me duly sworn, did depose and say that
he/she resides in                   at                         ; that
he/she is a Vice President of THE CHASE MANHATTAN BANK, (National
Association), the corporation described in and which executed the foregoing
instrument; that he/she knows the seal of said corporation, that the seal
affixed to said instrument is such corporate seal, that it was so affixed by
order of the Board of Directors of said corporation, and that he/she signed
his/her name thereto by like order.




Sworn to before me this ___________________

day of ________________, 19________.


      Notary

                                       15
<PAGE>

             ERISA Rider to Domestic and Global Custody Agreement
                  Between The Chase Manhattan Bank, N.A. and
                    Mutual of America Investment Corporation
                        effective ______________, 1996


          Customer represents that some of the Assets being placed in the Bank's
custody are subject to ERISA.  It is understood that in connection therewith the
Bank is a service provider and not a fiduciary of the plan and trust to which
the assets are related.  The Bank shall not be considered a party to the
underlying plan and trust and the Customer hereby assumes all responsibility to
assure that Instructions issued under this Agreement are in compliance with such
plan and trust and ERISA.

          This Agreement will be interpreted as being in compliance with the
Department of Labor Regulations Section 2550.404b-1 concerning the maintenance
of indicia of ownership of plan assets outside of the jurisdiction of the
district courts of the United States.

          The following modifications are made to the Agreement:

     Section 3.     Subcustodians and Securities Depositories.
                    ------------------------------------------

     Add the following language to the end of Section 3:

     As used in this Agreement, the term Subcustodian and the term securities
depositories include a branch of the Bank, a branch of a qualified U.S. bank, an
eligible foreign custodian, or an eligible foreign securities depository, where
such terms shall mean:
<PAGE>

     (a) "qualified U.S. bank" shall mean a U.S. bank as described in paragraph
         (a)(2)(ii)(A)(1) of the Department of Labor Regulations Section
         2550.404b-1;

     (b) "eligible foreign custodian" shall mean a banking institution
         incorporated or organized under the laws of a country other than the
         United States which is supervised or regulated by that country's
         government or an agency thereof or other regulatory authority in the
         foreign jurisdiction having authority over banks; and

     (c) "eligible foreign securities depository" shall mean a securities
         depository or clearing agency, incorporated or organized under the laws
         of a country other than the United States, which is supervised or
         regulated by that country's government or an agency thereof or other
         regulatory authority in the foreign jurisdiction having authority over
         such depositories or clearing agencies and which is described in
         paragraph (c)(2) of the Department of Labor Regulations Section
         2550.404b-1.

     Section 4.    Use of Subcustodian.
                   --------------------

     Subsection (d) of this section is modified by deleting the last sentence.

     Section 5.    Deposit Account Payments.
                   -------------------------

     Subsection (b) is amended to read as follows:

     (b) In the event that any payment made under this Section 5 exceeds the
         funds available in the Deposit Account, such discretionary advance
         shall be deemed a service provided by the Bank under this Agreement for
         which it is entitled to recover its costs as may be determined by the
         Bank in good faith.

                                       2
<PAGE>

     Section 10.    Authorized Persons.
                    -------------------

     Add the following paragraph at the end of Section 10:

     Customer represents that to the extent that Assets are subject to ERISA: a)
     Instructions will only be issued by or for a fiduciary pursuant to
     Department of Labor Regulation Section 404b-1 (a)(2)(i) and b) if
     Instructions are to be issued by an investment manager, such entity will
     meet the requirements of Section 3(38) of ERISA and will have been
     designated by the Customer to manage assets held in the Customer Accounts
     ("Investment Manager"). An Investment Manager may designate certain of its
     employees to act as Authorized Persons under this Agreement.

     Section 14(a).    Foreign Exchange Transactions.
                       ------------------------------

     Add the following paragraph at the end of Subsection 14(a):

     Instructions to execute foreign exchange transactions with the Bank, its
     subsidiaries, affiliates or Subcustodians will include (1) the time period
     in which the transaction must be completed; (2) the location i.e., Chase
     New York,

     Chase London, etc. or the Subcustodian with whom the contract is to be
     executed and (3) such additional information and guidelines as may be
     deemed necessary; and, if the Instruction is a standing Instruction, a
     provision allowing such Instruction to be overridden by specific contrary
     Instructions.

                                       3
<PAGE>

                 Mutual Fund Rider to Global Custody Agreement
                  Between The Chase Manhattan Bank, N.A. and
                    Mutual of America Investment Corporation
                         effective __________________


          Customer represents that the Assets being placed in the Bank's custody
are subject to the Investment Company Act of 1940 (the Act), as the same may be
amended from time to time.

          Except to the extent that the Bank has specifically agreed to comply
with a condition of a rule, regulation, interpretation promulgated by or under
the authority of the SEC or the Exemptive Order applicable to accounts of this
nature issued to the Bank (Investment Company Act of 1940, Release No. 12053,
November 20, 1981), as amended, or unless the Bank has otherwise specifically
agreed, the Customer shall be solely responsible to assure that the maintenance
of Assets under this Agreement complies with such rules, regulations,
interpretations or exemptive order promulgated by or under the authority of the
Securities Exchange Commission.

          The following modifications are made to the Agreement:

          Section 3.  Subcustodians and Securities Depositories.
                      -----------------------------------------

          Add the following language to the end of Section 3:

          The terms Subcustodian and securities depositories as used in this
          Agreement shall mean a branch of a qualified U.S. bank, an eligible
          foreign custodian or an eligible foreign securities depository, which
          are further defined as follows:

          (a) "qualified U.S. Bank" shall mean a qualified U.S. bank as defined
          in Rule 17f-5 under the Investment Company Act of 1940;
<PAGE>

     (b) "eligible foreign custodian" shall mean (i) a banking institution or
     trust company incorporated or organized under the laws of a country other
     than the United States that is regulated as such by that country's
     government or an agency thereof and that has shareholders' equity in excess
     of $200 million in U.S. currency (or a foreign currency equivalent
     thereof), (ii) a majority owned direct or indirect subsidiary of a
     qualified U.S. bank or bank holding company that is incorporated or
     organized under the laws of a country other than the United States and that
     has shareholders' equity in excess of $100 million in U.S. currency (or a
     foreign currency equivalent thereof) or (iii) any other entity that shall
     have been so qualified by exemptive order, rule or other appropriate action
     of the SEC; and

     (c) "eligible foreign securities depository" shall mean a securities
     depository or clearing agency, incorporated or organized under the laws of
     a country other than the United States, which operates (i) the central
     system for handling securities or equivalent book-entries in that country,
     or (ii) a transnational system for the central handling of securities or
     equivalent book-entries.

     The Customer represents that its Board of Directors has approved each of
the Subcustodians listed in Schedule A to this Agreement and the terms of the
subcustody agreements between the Bank and each Subcustodian, which are attached
as Exhibits I through _____ of Schedule A, and further represents that its Board
has determined that the use of each Subcustodian and the terms of each
subcustody agreement are consistent with the best interests of the Fund(s) and
its (their) shareholders.  The Bank will supply the Customer with any amendment
to Schedule A for approval.  The Customer has supplied or will supply the Bank
with certified copies of its Board of Directors resolution(s) with respect to
the foregoing prior to placing Assets with any Subcustodian so approved.

     Section 6.  Custody Account Transactions.
                 -----------------------------

                                       2
<PAGE>

     Add the following language to the end of Section 6:

     (c) Unless the Custodian gives the Customer reasonable notice to the
contrary, the Custodian will execute, or cause a subcustodian or agent to
execute, an escrow receipt relating to any covered call option written by
Customer and will deliver such escrow receipt against payment of the premium
thereof.  The Custodian shall maintain a segregated margin account as necessary
in connection with put or call options purchased or sold by the Customer.

     (d) If the Customer purchases or sells puts, calls or futures contracts
traded on any commodity exchange, the Custodian shall establish a segregated
margin account in the name of each futures commission merchant ("FCM"), pursuant
to a safekeeping agreement among the Custodian, the Customer and the FCM.

     Section 11.  Instructions.
                  -------------

     Add the following language to the end of Section 11:

     Deposit Account Payments and Custody Account Transactions made pursuant to
     Section 5 and 6 of this Agreement may be made only for the purposes listed
     below. Instructions must specify the purpose for which any transaction is
     to be made and Customer shall be solely responsible to assure that
     Instructions are in accord with any limitations or restrictions applicable
     to the Customer by law or as may be set forth in its prospectus.

     (a)  In connection with the purchase or sale of Securities at prices as
     confirmed by Instructions;

     (b) When Securities are called, redeemed or retired, or otherwise become
     payable;

                                       3
<PAGE>

     (c) In exchange for or upon conversion into other securities alone or other
     securities and cash pursuant to any plan or merger, consolidation,
     reorganization, recapitalization or readjustment;

     (d) Upon conversion of Securities pursuant to their terms into other
     securities;

     (e) Upon exercise of subscription, purchase or other similar rights
     represented by Securities;

     (f) For the payment of interest, taxes, management or supervisory fees,
     distributions or operating expenses;

     (g) In connection with any borrowings by the Customer requiring a pledge of
     Securities, but only against receipt of amounts borrowed;

     (h) In connection with any loans, but only against receipt of adequate
     collateral as specified in Instructions which shall reflect any
     restrictions applicable to the Customer;

     (i) For the purpose of redeeming shares of the capital stock of the
     Customer and the delivery to, or the crediting to the account of, the Bank,
     its Subcustodian or the Customer's transfer agent, such shares to be
     purchased or redeemed;

     (j) For the purpose of redeeming in kind shares of the Customer against
     delivery to the Bank, its Subcustodian or the Customer's transfer agent of
     such shares to be so redeemed;

     (k) For delivery in accordance with the provisions of any agreement among
     the Customer, the Bank and a broker-dealer registered under the Securities
     Exchange Act of 1934 (the "Exchange Act") and a member of The National
     Association of Securities Dealers, Inc. ("NASD"), relating to compliance
     with the rules of The Options Clearing
                                       4
<PAGE>

Corporation and of any registered national securities exchange, or of any
similar organization or organizations, regarding escrow or other arrangements in
connection with transactions by the Customer;

(l) For release of Securities to designated brokers under covered call
options, provided, however, that such Securities shall be released only upon
payment to the Bank of monies for the premium due and a receipt for the
Securities which are to be held in escrow.  Upon exercise of the option, or at
expiration, the Bank will receive from brokers the Securities previously
deposited.  The Bank will act strictly in accordance with Instructions in the
delivery of Securities to be held in escrow and will have no responsibility or
liability for any such Securities which are not returned promptly when due other
than to make proper request for such return;

(m) For spot or forward foreign exchange transactions to facilitate
security trading, receipt of income from Securities or related transactions;

(n) For other proper purposes as may be specified in Instructions issued by
an officer of the Customer which shall include a statement of the purpose for
which the delivery or payment is to be made, the amount of the payment or
specific Securities to be delivered, the name of the person or persons to whom
delivery or payment is to be made, and a certification that the purpose is a
proper purpose under the instruments governing the Customer; and

(o) Upon the termination of this Agreement as set forth in Section 14(i).

Section 12.  Standard of Care; Liabilities.
             ------------------------------

Add the following subsection (d) to Section 12:

                                       5
<PAGE>

(d) The Bank hereby warrants to the Customer that in its opinion, after due
inquiry, the established procedures to be followed by each of its branches, each
branch of a qualified U.S. bank, each eligible foreign custodian and each
eligible foreign securities depository holding the Customer's Securities
pursuant to this Agreement afford protection for such Securities at least equal
to that afforded by the Bank's established procedures with respect to similar
securities held by the Bank and its securities depositories in New York.

Section 14.  Access to Records.
             ------------------

Add the following language to the end of Section 14(c):
- - -------------------------------------------------------

Upon reasonable request from the Customer, the Bank shall furnish the
Customer such reports (or portions thereof) of the Bank's system of internal
accounting controls applicable to the Bank's duties under this Agreement.  The
Bank shall endeavor to obtain and furnish the Customer with such similar reports
as it may reasonably request with respect to each Subcustodian and securities
depository holding the Customer's assets.

                                       6
<PAGE>

                     Special Terms and Conditions Rider to

                     Domestic and Global Custody Agreement

                                    between

                        The Chase Manhattan Bank, N.A.

                                      and

                    Mutual of America Investment Corporation

                    effective                       , 1996

The following accounts are to be maintained under the Custody Agreement:

Title of Account                                   Account Number
- -----------------                                 --------------


All America Fund

Bond Fund

Mid-Term Bond Fund
Short-Term Bond Fund
Money Market Fund
Composite Fund
Aggressive Equity Fund
Equity Income Fund


This Rider may be amended from time to time by Customer and the Bank.

                                       7


                                                                    Exhibit 9(a)

                        [Letterhead of Patrick A. Burns,
              Senior Executive Vice President and General Counsel]

June 4, 1999

Mutual of America Investment Corporation
320 Park Avenue
New York, New York  10022

Dear Sirs/Madams:

This opinion  restates  opinions  previously  furnished by counsel in connection
with  offerings  of common  shares of the Equity Index Fund,  All America  Fund,
Aggressive  Equity  Fund,   Composite  Fund,  Bond  Fund,  Mid-Term  Bond  Fund,
Short-Term Bond Fund and Money Market Fund (together,  the "Funds") of Mutual of
America  Investment  Corporation  (the  "Investment  Company").  This opinion is
furnished in connection with the filing of a Post-Effective  Amendment No. 17 to
the Registration  Statement on Form N-1A by the Investment Company, made for the
purpose of filing via EDGAR all necessary exhibits that previously were filed on
paper.


The  Investment  Company  offers common shares of the Funds,  par value $.01 per
share, as described in the Investment Company's current Prospectus and Statement
of Additional Information, each dated May 1, 1999.

I have reviewed such documents and records as I have deemed necessary to express
an informed  opinion on the matters  covered  hereby.  It is my opinion that the
common  shares  of the  Funds,  when  issued  and  sold in  accordance  with the
Investment Company's current Prospectus and Statement of Additional  Information
in jurisdictions where such sales have been authorized,  are and will be legally
issued, fully paid and non-assessable.

I consent to the use of this opinion as an exhibit to  Post-Effective  Amendment
No. 17.

Sincerely,

/s/ Patrick A. Burns



                                                                   Exhibit 10(c)

                                POWER OF ATTORNEY

      KNOW ALL MEN BY THESE PRESENTS,  that each person whose signature  appears
below constitutes and appoints William J. Flynn,  Dolores J. Morrissey,  Manfred
Altstadt, Patrick A. Burns and Stephanie J. Kopp, and each of them, his true and
lawful  attorneys-in-fact  and  agents,  with  full  power of  substitution  and
resubstitution,  for  him  and in his  name,  place  and  stead,  in any and all
capacities, to sign any and all amendments (including post-effective amendments)
to this Registration Statement, and to file the same, with all exhibits thereto,
and other  documents in connection  therewith,  with the Securities and Exchange
Commission,  granting unto said  attorneys-in-fact and agents, and each of them,
full  power  and  authority  to do and  perform  each and  every  act and  thing
requisite  and  necessary to be done, as fully to all intents and purposes as he
might or could do in  person,  hereby  ratifying  and  confirming  all that said
attorneys-in-fact  and  agents  or any of them,  or their or his  substitute  or
substitutes, may lawfully do or cause to be done by virtue hereof.

         /s/ Manfred Altstadt
- ----------------------------------------

         /s/ Dolores J. Morrissey
- ----------------------------------------

         /s/ Peter J. Flanagan
- ----------------------------------------

         /s/ George J. Mertz
- ----------------------------------------

         /s/ James J. Needham
- ----------------------------------------

         /s/ Howard J. Nolan
- ----------------------------------------

[From  Pages C-5 and C-6 of  Post-Effective  Amendment  No.  10 to  Registrant's
Registration  Statement on Form N-1A, as filed with the  Securities and Exchange
Commission on April 19, 1994]



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