PROSPECTUS Dated May 5, 1999 Pricing Supplement No. 73 to
PROSPECTUS SUPPLEMENT Registration Statement No. 333-75289
Dated May 6, 1999 May 3, 2000
Rule 424(b)(3)
Morgan Stanley Dean Witter & Co.
MEDIUM-TERM NOTES, SERIES C
Senior Fixed Rate Notes
-----------------------
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 every May 22 and November 22, commencing May 22, 2003. 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: May 22, 2015
Settlement Date
(Original Issue Date): May 22, 2000
Interest Accrual Date: May 22, 2000
Issue Price: 98.125%
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 every May 22 and
November 22, commencing May 22, 2003
Annual Redemption
Percentage Reduction: N/A
Interest Rate: 8.25% per year
Interest Payment
Dates: Each May 22 and November 22, commencing
November 22, 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: 61745EPU9
Terms not defined above have the meanings given to such terms in the
accompanying prospectus supplement.
MORGAN STANLEY DEAN WITTER
