-of-sample volatility of optimized portfolios from each model. A few factors capture the general covariance structure but adding more … yield similar results. Using a tracking error volatility criterion, larger differences appear, with particularly favorable …

information-based model demonstrates that the correlation of beliefs implied by analyst forecasts leads to return correlations … broadly in line with the data, both in levels and across countries - the correlation between predicted and actual is 0.63. Our … findings have implications for market-wide volatility - the model-implied correlations alone can explain 44% of the cross …

This paper compares several statistical models for monthly stock return volatility. The focus is on U.S. data from 1834 … volatility that are inconsistent with stationary models for conditional heteroskedasticity, We show the importance of … of stock volatility, even over the 1834-1925 period …

It appears that volatility in equity markets is asymmetric: returns and conditional volatility are negatively … correlated. We provide a unified framework to simultaneously investigate asymmetric volatility at the firm and the market level … empirical evidence on asymmetry to Japanese stocks. Although volatility asymmetry is present and significant at the market and …

It is sometimes argued that an increase in stock market volatility raises required stock returns, and thus lowers stock … for this volatility feedback effect. The resulting model is asymmetric, because volatility feedback amplifies large … for large crashes. The model also implies that volatility feedback is more important when volatility is high. In U …

. They dampen local stock market volatility for all stock markets, except those associated with the three safe …

) levels of volatility. These results provide a novel perspective on both the equity risk premium and excess volatility puzzles …