This paper finds that fund managers do not expect mean reverting returns, as suggested by theory and empirical evidence, but mean averting returns. The degree of mean aversion is positively related to preferences for non-fundamental information and loss aversion.

Motivated by research in psychology and experimental economics, we assume that investors update their beliefs about an asset's value upon observing the price, but only when the price clearly reveals that others obtained private information that differs from their own private information. In...