We examine when anomaly returns occur in order to understand if they exist. If anomalies are spurious, then anomaly returns should not depend on their proximity to the dates on which key anomaly information is released. Yet, they do. Using a powerful database containing the precise release date...

The beta dispersion, which is the spread of betas on a stock market, can be interpreted as a measure of market vulnerability. This study examines the economic idea of the beta dispersion and its application as a market return predictor. Based on the empirical beta dispersion observed in the US...