Statistics Papers
Document Type
Working Paper
Date of this Version
12-31-2008
Abstract
We present a new method for testing whether a fund manager’s track record allows us to infer that he is able to beat the market with high probability or is just plain lucky. The test is based on the martingale maximal inequality. Unlike other standard approaches the test is robust to the assumed distribution of returns while retaining substantial statistical power. The method is illustrated using stock market data from 1926‐2007.
Recommended Citation
Foster, D. P., Stine, R. A., & Young, H. (2008). A Martingale Test for Alpha. Retrieved from https://repository.upenn.edu/statistics_papers/100
Date Posted: 27 November 2017