PROSPECTUS Dated May 5, 1999 Pricing Supplement No. 20 to
PROSPECTUS SUPPLEMENT Registration Statement No. 333-75289
Dated May 6, 1999 August 2, 1999
Rule 424(b)(3)
Morgan Stanley Dean Witter & Co.
MEDIUM-TERM NOTES, SERIES C
Senior Fixed Rate Notes
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We, Morgan Stanley Dean Witter & Co., have the option to redeem these
notes in whole, but not in part, prior to the maturity date. We may redeem these
notes by giving you not less than 30 nor more than 35 calendar days notice on
any February 18 or August 18, commencing August 18, 2001. We describe the basic
features of this type of note in the section called "Description of Notes--Fixed
Rate Notes" in the accompanying prospectus supplement, subject to and as
modified by the provisions described below.
Principal Amount: $20,000,000
Maturity Date: August 18, 2009
Settlement Date
(Original Issue Date): August 18, 1999
Interest Accrual Date: August 18, 1999
Issue Price: 100%
Specified Currency: U.S. Dollars
Redemption Percentage: 100%
Redemption Dates: Redeemable in whole, but not in part, at our option
upon not less than 30 nor more than 35 calendar days
notice on any February 18 or August 18, commencing
August 18, 2001
Annual Redemption
Percentage Reduction: N/A
Interest Rate: 7.50% per year
Interest Payment Dates: Each February 18 and August 18, commencing
February 18, 2000
Interest Payment Period: Semi-annually
Book Entry Note or
Certificated Note: Book Entry Note
Senior Note or
Subordinated Note: Senior Note
Agent: Morgan Stanley & Co. Incorporated
Trustee: The Chase Manhattan Bank
Minimum Denomination: $1,000
CUSIP: 61745ENU1
Terms not defined above have the meanings given to such terms in the
accompanying prospectus supplement.
MORGAN STANLEY DEAN WITTER
