Unobserved actions of mutual funds
By: Marcin Kacperczyk, Clemens Sialm, Lu Zheng
Contributors: Sialm, Clemens; Zheng, Lu; National Bureau of Economic Research
Series: NBER working paper series -- working paper 11766; Working paper series (National Bureau of Economic Research : Online) -- working paper no. 11766.
Publisher: National Bureau of Economic Research
Published: 2005
Place of publication: Cambridge, MA
Language: eng
Format: [electronic resource] /
Description: "Despite extensive disclosure requirements, mutual fund investors do not observe all actions of fund managers.  We estimate the impact of unobserved actions on fund returns using the return gap, which is defined as the difference between the reported fund return and the return of a portfolio that invests in the previously disclosed holdings after adjusting for expenses.  Analyzing monthly return data on more than 2,500 unique U.S.  equity funds over the period 1984-2003, we document a substantial cross-sectional heterogeneity and time-series persistence in the return gap, thus demonstrating that unobserved actions of some funds persistently create value, while such actions of others destroy value.  Most important, we show that the return gap helps to predict future fund performance and conclude that fund investors should use the return gap as an additional measure to evaluate the performance of mutual funds"--National Bureau of Economic Research web site.
Notes: Title from PDF file as viewed on 12/7/2005.

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