Exhibit No. EX-99.h.4.j FEE WAIVER AGREEMENT FEE WAIVER AGREEMENT dated as of July 8, 2007, between DFA Investment Dimensions Group Inc., a Maryland corporation (the "Fund"), on behalf of U.S. Social Core Equity 2 Portfolio (the "Portfolio"), and...Fee Waiver Agreement • July 6th, 2007 • Dfa Investment Dimensions Group Inc
