the United States to show how stock volatility has changed over time. It also uses various measures of volatility implied … 2008. This episode was associated with historically high levels of stock market volatility, particularly among financial … sector stocks, but the market did not expect volatility to remain high for long and it did not. This is in sharp contrast to …

The leverage effect refers to the generally negative correlation between an asset return and its changes of volatility … volatility estimated from high-frequency data. The puzzle lies in the fact that such an intuitively natural estimate yields …

, return volatility, and trading volume in the mortgage-backed security market. We find that increased disagreement is … associated with higher expected returns, higher return volatility, and larger trading volume. These results imply that there is a … positive risk premium for disagreement in asset prices. We also show that volatility in and of itself does not lead to higher …

We show that volatility movements have first-order implications for consumption dynamics and asset prices. Volatility … news affects the stochastic discount factor and carries a separate risk premium. In the data, volatility risks are … aggregate wealth and the cross-sectional differences in risk premia. Estimation of our volatility risks based model yields an …

stock price reaction to news, and hence lowering the stock return volatility. Thus, in addition to uncertainty about … fundamentals, uncertainty about CEO quality is also a source of stock return volatility, which decreases over a CEO's tenure as the …'s prospects. Overall, uncertainty about management quality appears to be an important source of stock return volatility …