Disagreement about stock valuation, combined with short-sales constraints, can increase asset prices. We build a model showing that, so long as investor beliefs are not perfectly correlated, investors will disagree less about the value of a conglomerate than about each of its individual...

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...