Consistent with the argument that portfolio disclosure reveals "trade secrets", a difference-in-differences estimation suggests that there is a drop in fund performance after a hedge fund begins filing Form 13F, as well as an increase in return correlations with other funds in the same...

By comparing the trading behavior of individual investors in different market conditions, this paper tests the theory that attribution bias - inflated confidence in one's own skill - creates overconfident traders. In a bull market, investors incorrectly attribute trading successes (luck) to...

We explore whether style investing by mutual fund investors contributes to return comovement of stocks in the same style, classified by market capitalization and book-to-market ratio. We find that a stock's comovement with other stocks in its style is significantly greater when this stock is...