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- W3126021918 abstract "We show that the standard equation-by-equation OLS used in performance evaluation ignores information in the alpha population and leads to severely biased estimates for the alpha population. We propose a new framework that treats fund alphas as random effects. Our framework allows us to make inference on the alpha population while controlling for various sources of estimation risk. At the individual fund level, our method pools information from the entire alpha distribution to make density forecast for the fund's alpha, offering a new way to think about performance evaluation. In simulations, we show that our method generates parameter estimates that universally dominate the OLS estimates, both at the population and at the individual fund level. While it is generally accepted that few if any mutual funds outperform, we find that the fraction of funds that generate positive alphas is accurately estimated at over 10%. An out-of-sample forecasting exercise also shows that our method generates superior alpha forecasts." @default.
- W3126021918 created "2021-02-01" @default.
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- W3126021918 date "2016-03-01" @default.
- W3126021918 modified "2023-09-27" @default.
- W3126021918 title "Rethinking Performance Evaluation" @default.
- W3126021918 hasPublicationYear "2016" @default.
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