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Efficiency With Costly Information: A Study of Mutual Fund Performance, 1965-1984

Ippolito, Richard A.·1989·The Quarterly Journal of Economics

Abstract

If information is costly to collect and implement, then it is efficient for trades by informed investors to occur at prices sufficiently different from full-information prices to compensate them for the cost of becoming informed. This notion is tested by evaluating investment performance in the mutual fund industry over a 20-year period. The study finds evidence that is consistent with optimal trading in efficient markets. Risk-adjusted returns in the mutual fund industry, net of fees and expenses, are comparable to returns available in index funds; and portfolio turnover and management fees are unrelated to fund performance.

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Metadata

Authors
Ippolito, R. A.
Venue
The Quarterly Journal of Economics
Published
1989-02
Volume
104
Issue
1
Pages
1
ISSN
0033-5533 (ISSN-L)
OpenAlex
W2070225810
Cited by
633
References
0
FWCI
11.52
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Efficiency With Costly Information: A Study of Mutual Fund Performance, 1965-1984. https://app.cochat.ai/papers/10.2307/2937832
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Ippolito, R. A. (1989). Efficiency With Costly Information: A Study of Mutual Fund Performance, 1965-1984. The Quarterly Journal of Economics. https://doi.org/10.2307/2937832

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