Over the past 40 years, the volatility of the average stock return has drastically outpaced total market volatility. Thus, idiosyncratic return volatility has dramatically increased. We estimate this increase to be 6% per year. Consistent with an efficient market, this result is mirrored by an...

Over the past forty years, the volatility of the average stock return has drastically outpaced total market volatility. Thus, idiosyncratic return volatility has dramatically increased. We estimate this increase to be 6% per year. Consistent with an efficient market, we show that this result is...

We use daily returns to compare the performance predictability of Bayesian estimates of mutual fund performance with standard frequentist measures. When the returns on passive nonbenchmark assets are correlated with fund holdings, incorporating histories of these returns produces a performance...

Using unique data on brokerage-firm trading volume, I examine whether analysts' earnings forecasts and recommendations generate trading volume for their brokerage firms. I find that analysts' forecasts differing from the consensus forecast generate signif icant brokerage-firm volume in the...