Efficiency with Costly Information: A Reinterpretation of Evidence from Managed Portfolios

Elton, Edwin J, et al

The Review of Financial Studies, 1993, vol. 6, issue 1, 1-22

Abstract: We investigate the informational efficiency of mutual fund performance for the period 1965-84. Results are shown to be sensitive to the measurement of performance chosen. We find that returns on S&P stocks, returns on non-S&P stocks, and returns on bonds are significant factors in performance assessment. Once we correct for the impact of non-S&P assets on mutual fund returns, we find that mutual funds do not earn returns that justify their information acquisition costs. This is consistent with results for prior periods. Coauthors are Martin J. Gruber, Sanjiv Das, and MAtthew Hlavka. Article published by Oxford University Press on behalf of the Society for Financial Studies in its journal, The Review of Financial Studies.

Date: 1993
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