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How to Tell if a Money Manager Knows More?

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  • Sergey Iskoz
  • Jiang Wang

Abstract

In this paper, we develop a methodology to identify money managers who have private information about future asset returns. The methodology does not rely on a specific risk model, such as the Sharpe ratio, CAPM, or APT. Instead, it relies on the observation that returns generated by managers with private information cannot be replicated by those without it. Using managers' trading records, we develop distribution-free tests that can identify such managers. We show that our approach is general with regard to the nature of private information the managers may have, and with regard to the trading strategies they may follow.

Suggested Citation

  • Sergey Iskoz & Jiang Wang, 2003. "How to Tell if a Money Manager Knows More?," NBER Working Papers 9791, National Bureau of Economic Research, Inc.
    • Handle: RePEc:nbr:nberwo:9791
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    JEL classification:

    • G0 - Financial Economics - - General

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