%0 Journal Article %T Product Differentiation, Search Costs, and Competition in the Mutual Fund Industry: A Case Study of S&P 500 Index Funds %A Hortacsu, Ali %A Syverson, Chad %A , %J SSRN Electronic Journal %@ 1556-5068 %D 2003-01-01 %I Elsevier BV %~ DeepDyve