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Filed Pursuant to Rule 497(e)
Registration File No.: 333-38297
SUPPLEMENT TO THE PROSPECTUS OF
MORGAN STANLEY DEAN WITTER
COMPETITIVE EDGE FUND, "BEST IDEAS PORTFOLIO"
DATED DECEMBER 29, 1997
The sixth paragraph of the section entitled "The Fund and Its Management"
in the above Prospectus is revised to reflect that, effective May 1, 1998,
the Trustees of the Fund have amended the Fund's Investment Management
Agreement to reduce the compensation received by the Investment Manager under
the Agreement for assets of the "Best Ideas Portfolio" of the Fund exceeding
$1.5 billion, so that the compensation under the Agreement is calculated
daily by applying the following annual rates to the net assets of the "Best
Ideas Portfolio" determined as of the close of each business day: 0.65% of
the portion of daily net assets not exceeding $1.5 billion; and 0.625% of the
portion of daily net assets exceeding $1.5 billion.
May 1, 1998
