<PAGE>
Exhibit No. 16
POWER OF ATTORNEY
I, Margo N. Alexander, Trustee and President (Chief Executive Officer)
of PaineWebber PACE Select Advisors Trust ("Trust"), hereby constitute and
appoint Amy R. Doberman, Dianne E. O'Donnell, Keith A. Weller, Arthur J. Brown,
Elinor W. Gammon and Benjamin J. Haskin, and each of them singly, my true and
lawful attorneys, with full power to sign for me, in my name and in my
capacities as Trustee and and as President (Chief Executive Officer) of the
Trust, the registration statements of the Trust on Form N-14 approved by the
Trust's Board of Trustees at meetings held September 12 and 13, 2000, any
amendments to such registration statements and any amendments to the current
registration statement of the Trust on Form N-1A (all as filed with the
Securities and Exchange Commission) and all instruments necessary or desirable
in connection therewith, and hereby ratify and confirm my signature as it may be
signed by said attorneys to these registration statements, amendments to
registration statements and other instruments.
Signature Title Date
--------- ----- ----
Trustee and President
/s/ Margo N. Alexander (Chief Executive Officer) September 12, 2000
------------------------------------------
Margo N. Alexander
<PAGE>
POWER OF ATTORNEY
I, David J. Beaubien, Trustee of PaineWebber PACE Select Advisors Trust
("Trust"), hereby constitute and appoint Amy R. Doberman, Dianne E. O'Donnell,
Keith A. Weller, Arthur J. Brown, Elinor W. Gammon and Benjamin J. Haskin, and
each of them singly, my true and lawful attorneys, with full power to sign for
me, in my name and in my capacity as Trustee of the Trust, the registration
statements of the Trust on Form N-14 approved by the Trust's Board of Trustees
at meetings held September 12 and 13, 2000, any amendments to such registration
statements and any amendments to the current registration statement of the Trust
on Form N-1A (all as filed with the Securities and Exchange Commission) and all
instruments necessary or desirable in connection therewith, and hereby ratify
and confirm my signature as it may be signed by said attorneys to these
registration statements, amendments to registration statements and other
instruments.
Signature Title Date
--------- ----- ----
/s/ David J. Beaubien Trustee September 12, 2000
------------------------------------------
David J. Beaubien
2
<PAGE>
POWER OF ATTORNEY
I, E. Garrett Bewkes, Jr., Trustee of PaineWebber PACE Select Advisors
Trust ("Trust"), hereby constitute and appoint Amy R. Doberman, Dianne E.
O'Donnell, Keith A. Weller, Arthur J. Brown, Elinor W. Gammon and Benjamin J.
Haskin, and each of them singly, my true and lawful attorneys, with full power
to sign for me, in my name and in my capacity as Trustee of the Trust, the
registration statements of the Trust on Form N-14 approved by the Trust's Board
of Trustees at meetings held September 12 and 13, 2000, any amendments to such
registration statements and any amendments to the current registration statement
of the Trust on Form N-1A (all as filed with the Securities and Exchange
Commission) and all instruments necessary or desirable in connection therewith,
and hereby ratify and confirm my signature as it may be signed by said attorneys
to these registration statements, amendments to registration statements and
other instruments.
Signature Title Date
--------- ----- ----
/s/ E. Garrett Bewkes, Jr. Trustee September 12, 2000
-----------------------------------------
E. Garrett Bewkes, Jr.
3
<PAGE>
POWER OF ATTORNEY
I, William W. Hewitt, Jr., Trustee of PaineWebber PACE Select Advisors
Trust ("Trust"), hereby constitute and appoint Amy R. Doberman, Dianne E.
O'Donnell, Keith A. Weller, Arthur J. Brown, Elinor W. Gammon and Benjamin J.
Haskin, and each of them singly, my true and lawful attorneys, with full power
to sign for me, in my name and in my capacity as Trustee of the Trust, the
registration statements of the Trust on Form N-14 approved by the Trust's Board
of Trustees at meetings held September 12 and 13, 2000, any amendments to such
registration statements and any amendments to the current registration statement
of the Trust on Form N-1A (all as filed with the Securities and Exchange
Commission) and all instruments necessary or desirable in connection therewith,
and hereby ratify and confirm my signature as it may be signed by said attorneys
to these registration statements, amendments to registration statements and
other instruments.
Signature Title Date
--------- ----- ----
/s/ William W. Hewitt, Jr. Trustee September 12, 2000
---------------------------------------
William W. Hewitt, Jr.
4
<PAGE>
POWER OF ATTORNEY
I, Morton L. Janklow, Trustee of PaineWebber PACE Select Advisors Trust
("Trust"), hereby constitute and appoint Amy R. Doberman, Dianne E. O'Donnell,
Keith A. Weller, Arthur J. Brown, Elinor W. Gammon and Benjamin J. Haskin, and
each of them singly, my true and lawful attorneys, with full power to sign for
me, in my name and in my capacity as Trustee of the Trust, the registration
statements of the Trust on Form N-14 approved by the Trust's Board of Trustees
at meetings held September 12 and 13, 2000, any amendments to such registration
statements and any amendments to the current registration statement of the Trust
on Form N-1A (all as filed with the Securities and Exchange Commission) and all
instruments necessary or desirable in connection therewith, and hereby ratify
and confirm my signature as it may be signed by said attorneys to these
registration statements, amendments to registration statements and other
instruments.
Signature Title Date
--------- ----- ----
/s/ Morton L. Janklow Trustee September 12, 2000
----------------------------------------
Morton L. Janklow
5
<PAGE>
POWER OF ATTORNEY
I, Brian M. Storms, Trustee of PaineWebber PACE Select Advisors Trust
("Trust"), hereby constitute and appoint Amy R. Doberman, Dianne E. O'Donnell,
Keith A. Weller, Arthur J. Brown, Elinor W. Gammon and Benjamin J. Haskin, and
each of them singly, my true and lawful attorneys, with full power to sign for
me, in my name and in my capacity as Trustee of the Trust, the registration
statements of the Trust on Form N-14 approved by the Trust's Board of Trustees
at meetings held September 12 and 13, 2000, any amendments to such registration
statements and any amendments to the current registration statement of the Trust
on Form N-1A (all as filed with the Securities and Exchange Commission) and all
instruments necessary or desirable in connection therewith, and hereby ratify
and confirm my signature as it may be signed by said attorneys to these
registration statements, amendments to registration statements and other
instruments.
Signature Title Date
--------- ----- ----
/s/ Brian M. Storms Trustee September 12, 2000
----------------------------------------
Brian M. Storms
6
<PAGE>
POWER OF ATTORNEY
I, William D. White, Trustee of PaineWebber PACE Select Advisors Trust
("Trust"), hereby constitute and appoint Amy R. Doberman, Dianne E. O'Donnell,
Keith A. Weller, Arthur J. Brown, Elinor W. Gammon and Benjamin J. Haskin, and
each of them singly, my true and lawful attorneys, with full power to sign for
me, in my name and in my capacity as Trustee of the Trust, the registration
statements of the Trust on Form N-14 approved by the Trust's Board of Trustees
at meetings held September 12 and 13, 2000, any amendments to such registration
statements and any amendments to the current registration statement of the Trust
on Form N-1A (all as filed with the Securities and Exchange Commission) and all
instruments necessary or desirable in connection therewith, and hereby ratify
and confirm my signature as it may be signed by said attorneys to these
registration statements, amendments to registration statements and other
instruments.
Signature Title Date
--------- ----- ----
/s/ William D. White Trustee September 12, 2000
----------------------------------------
William D. White
7
<PAGE>
POWER OF ATTORNEY
I, M. Cabell Woodward, Jr., Trustee of PaineWebber PACE Select Advisors
Trust ("Trust"), hereby constitute and appoint Amy R. Doberman, Dianne E.
O'Donnell, Keith A. Weller, Arthur J. Brown, Elinor W. Gammon and Benjamin J.
Haskin, and each of them singly, my true and lawful attorneys, with full power
to sign for me, in my name and in my capacity as Trustee of the Trust, the
registration statements of the Trust on Form N-14 approved by the Trust's Board
of Trustees at meetings held September 12 and 13, 2000, any amendments to such
registration statements and any amendments to the current registration statement
of the Trust on Form N-1A (all as filed with the Securities and Exchange
Commission) and all instruments necessary or desirable in connection therewith,
and hereby ratify and confirm my signature as it may be signed by said attorneys
to these registration statements, amendments to registration statements and
other instruments.
Signature Title Date
--------- ----- ----
/s/ M. Cabell Woodward, Jr. Trustee September 12, 2000
-----------------------------------------
M. Cabell Woodward, Jr.
8
<PAGE>
POWER OF ATTORNEY
I, Paul H. Schubert, Vice President and Treasurer (Chief Financial and
Accounting Officer) of PaineWebber PACE Select Advisors Trust ("Trust"), hereby
constitute and appoint Amy R. Doberman, Dianne E. O'Donnell, Keith A. Weller,
Arthur J. Brown, Elinor W. Gammon and Benjamin J. Haskin, and each of them
singly, my true and lawful attorneys, with full power to sign for me, in my name
and in my capacity as Vice President and Treasurer (Chief Financial and
Accounting Officer) of the Trust, the registration statements of the Trust on
Form N-14 approved by the Trust's Board of Trustees at meetings held September
12 and 13, 2000, any amendments to such registration statements and any
amendments to the current registration statement of the Trust on Form N-1A (all
as filed with the Securities and Exchange Commission) and all instruments
necessary or desirable in connection therewith, and hereby ratify and confirm my
signature as it may be signed by said attorneys to these registration
statements, amendments to registration statements and other instruments.
Signature Title Date
--------- ----- ----
Vice President and Treasurer
/s/ Paul H. Schubert (Chief Financial and September 12, 2000
----------------------------------------
Paul H. Schubert Accounting Officer)
9
