RT Journal Article SR Electronic T1 Do Mutual Fund Supermarket Programs Raise Expense Ratios? JF The Journal of Investing FD Institutional Investor Journals SP 90 OP 95 DO 10.3905/joi.2001.319456 VO 10 IS 1 A1 Rich Fortin A1 Stuart E Michelson YR 2001 UL https://pm-research.com/content/10/1/90.abstract AB This article investigates the hypothesis that there are significant differences in mutual fund expense ratios after inclusion of these funds in the Schwab Retail OneSource supermarket program. The data covers the 1991–1998 peroid for ten investment categories. The results show that there is a significant decrease in expense ratios after inclusion in the Schwab OneSource program. This result is important for investors that are considering investing in mutual funds through a supermarket program because expense ratios have a direct impact on their returns.