Examinations of the dynamics of daily returns and volatility in stock markets of the US, Hong Kong and mainland China … the US to the other three markets; but no spillover between Hong Kong and either of the two mainland China markets; (2 … mainland China and Hong Kong markets and low correlations of 6.4% and 7.2% between the US and China's two markets; thus …

volatility as well as the U.S. economy. We find that - even after accounting for these factors - oil price uncertainty still has … confirms these results. Finally, significant spillover effects in the GARCH model suggest that oil price volatility is a gauge …

periods of heightened volatility. We also measure causality in volatilities extending well-known approaches analyzing … volatility transmission. We find significant cross-market relationships between U.S. and German stock and bond markets …

frequency volatilities and correlations ; Dynamic conditional correlation ; Spline-GARCH ; Idiosyncratic volatility ; Long …

significant. Last but not least, we find that option-implied oil price volatility, as a measure of oil price uncertainty …, outperforms the conditional volatility of crude oil prices in predicting unemployment. This study provides valuable implications …