Commonly used performance metrics calculated from tradable long-short strategies constructed using leverage lead to specious conclusions of statistical significance. In particular, even if assets are randomly assigned to the levered strategies' long and short portfolios, too often they generate...

This paper explores a channel whereby asset-pricing anomalies can appear as investors alter portfolios according to findings in academic research. In particular, I find that assets with low realized CAPM Alphas outperform those with high ones, but this finding only appears after the CAPM's...

Under the APT framework and the assumption that the market portfolio is well-diversified, if not mean-variance efficient, the common factors in raw-returns are the market return plus the common factors in the space of excess-returns over the market return. This explains why the market betas fail...

We consider the estimation methods for the rank of a beta matrix corresponding to a multifactor model and study which method would be appropriate for data with a large number of assets. Our simulation results indicate that a restricted version of Cragg and Donald's (1997) Bayesian Information...