When two people coincidentally have something in common (such as a name or birthday), they tend to like each other more and are thus more likely to offer help and comply with requests. This dynamic can have important legal and ethical consequences whenever these incidental similarities give rise...

Security analysts are often considered experts in the industries they follow. We analyze the impact of such expertise on market prices and returns in a setting where firms' earnings components may differ in their levels of persistence over time. In this context we show that a firm's...

This paper analyzes the distribution of stock ratings at investment banks and brokerage firms and examines whether these distributions can be used to predict the profitability of analysts' recommendations. Consistent with prior work, we find that the percentage of buy recommendations increased...