Alpha and Performance Measurement: The Effects of Investor Disagreement and Heterogeneity

Wayne Ferson and Jerchern Lin

Journal of Finance, 2014, vol. 69, issue 4, 1565-1596

Abstract: type="main">

The literature has not established that a positive alpha, as traditionally measured, means that an investor would want to buy a fund. When alpha is defined using the client's utility function, a positive alpha generally means the client would want to buy. When markets are incomplete, investors will disagree about the attractiveness of a fund. We provide bounds on the expected disagreement with a traditional alpha and study the cross-sectional relation of disagreement and investor heterogeneity with the flow response to past fund alphas. The effects are both economically and statistically significant.

Date: 2014
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