This paper examines long memory volatility in international stock markets. We show that long memory volatility is … memory in volatility than emerging and frontier countries and that stock market jumps are negatively correlated with long … memory of volatility. Overall, our results provide some evidence of a link between stock market uncertainty and macroeconomic …

documents that, when the idiosyncratic volatility is specified by firm size, the size-portfolio idiosyncratic volatility is …, this paper examines the predictive ability of the size-portfolio idiosyncratic volatility for GDP growth. It concludes that … size-portfolio idiosyncratic volatility contain significant information for forecasting future GDP growth for both the U …