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Mutual Fund Flows and Performance in Rational Markets

Berk, Jonathan B., Green, Richard C.·2004·Journal of Political Economy

Abstract

We develop a simple rational model of active portfolio management that provides a natural benchmark against which to evaluate observed relationship between returns and fund flows. We show that many effects widely regarded as anomalous are consistent with this simple explanation. In the model, investments with active managers do not outperform passive benchmarks because of the competitive market for capital provision, combined with decreasing returns to scale in active portfolio management. Consequently, past performance cannot be used to predict future returns, or to infer the average skill level of active managers. The lack of persistence in active manager returns does not imply that differential ability across managers is nonexistent or unrewarded, that gathering information about performance is socially wasteful, or that chasing performance is pointless. A strong relationship between past performance and the ow of funds exists in our model, indeed this is the market mechanism that ensures that no predictability in performance exists. Calibrating the model to the fund flows and survivorship rates, we find these features of the data are consistent with the vast majority (80%) of active managers having at least enough skill to make back their fees.

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Research works printed but not linked: 6

  1. Berk Jonathan B, 2002, Green
  2. Bernhardt Dan, Discussion Paper in Finance no. 2002‐19.
  3. Bollen Nicolas P. B., Busse
  4. Chen Hsiu‐lang, 2002, Pennacchi
  5. Getmansky Mila, Manuscript
  6. Ross Stephen A, 2002, Jaffe

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Metadata

Authors
Berk, J. B., & Green, R. C.
Affiliations
  • National Bureau of Economic Research (US)
  • Carnegie Mellon University (US)
Venue
Journal of Political Economy
Published
2004-12
Volume
112
Issue
6
Pages
1269-1295
ISSN
  • 0022-3808 (ISSN-L)
  • 1537-534X
OpenAlex
W3022326679
Cited by
2,083
References
16
Citations by year
2026: 118 · 2025: 123 · 2024: 179 · 2023: 135 · 2022: 128 · 2021: 130 · 2020: 130 · 2019: 105 · 2018: 106 · 2017: 97 · 2016: 83 · 2015: 93 · 2014: 72 · 2013: 92 · 2012: 105
FWCI
54.34
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Political Economy (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Topics
  • Social Sciences › Economics, Econometrics and Finance › Finance › Financial Markets and Investment Strategies
  • Social Sciences › Economics, Econometrics and Finance › Finance › Corporate Finance and Governance
  • Social Sciences › Business, Management and Accounting › Accounting › Financial Analysis and Corporate Governance
Keywords
mutual fund flows, fund performance, active portfolio management, rational expectations, performance persistence, active vs passive investing, financial intermediaries, information aggregation

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