Improved Forecasting of Mutual Fund Alphas and Betas by Matthew Spiegel, Harry Mamaysky, Hong Zhang

Maybe mutual funds do beat the market more than previously reported?SSRN-Improved Forecasting of Mutual Fund Alphas and Betas by Matthew Spiegel, Harry Mamaysky, Hong ZhangSpiegel, Mamaysky, and Zhang look at measurement errors in measuring mutual fund performance and find that past researchers have not always gotten it right. In fact, when correct betas are used, it seems that find managers do