DFA INVESTMENT DIMENSIONS GROUP INC.
SUPPLEMENT TO PROSPECTUS
DATED MARCH 30, 1999
Emerging Markets Value Portfolio
The annual fund operating expenses for Emerging Markets Value Portfolio are
as follows:
<TABLE>
<CAPTION>
Total
Annual
Management Other Operating
Fee Expenses Expenses
<S> <C> <C> <C>
0.50% 1.46% 1.96%
</TABLE>
DFA Intermediate Government Fixed Income Portfolio
Effective June 1, 1999, the annual investment advisory fee payable by the DFA
Intermediate Government Fixed Income Portfolio (the "Portfolio") to
Dimensional Fund Advisors Inc. is reduced from 0.15% to 0.10% of the net
assets of the Portfolio.
In conjunction with the reduction in the advisory fee payable by the
Portfolio, the final line of the Example on page 19 of the Prospectus
is deleted, and replaced with the following:
<TABLE>
<CAPTION>
1 Year 3Year 5 Year 10 Years
<S> <C> <C> <C> <C>
DFA Intermediate Government Fixed Income 19 61 107 243
</TABLE>
The date of this Supplement is May 28, 1999.
