We study how fast investors learn about manager skills by examining the speed at which their disagreement converges. Using a novel measure of disagreement, we find that hedge fund investors learn as fast as suggested by Bayes' rule. However, we also find mutual fund investors learn much more...

We examine whether investor sentiment affects hedge fund companies' decision to start new funds. We find significantly more fund inceptions in hot markets than in cold markets. Moreover, funds opened in hot markets exhibit weaker subsequent performance, higher risk of fraud, and shorter...

This paper documents a high and increasing capital concentration in the bond fund industry over the past three decades. Large funds deliver better performance and receive larger inflows than small funds, which explains the concentration of bond funds. However, large funds take more risks by...

We show theoretically and empirically that flows into index funds raise the prices of large stocks in the index disproportionately more than the prices of small stocks. Conversely, flows predict a high future return of the small-minus-large index portfolio. This finding runs counter to the CAPM,...