autoregression, we derive return and volatility spillover indices over the rolling sub-sample windows. We show that there is … substantial difference between the behavior of the East Asian return and volatility spillover indices over time. While the return … spillover index reveals increased integration among the East Asian equity markets, the volatility spillover index experiences …

is that the spot price process of electricity is still puzzling researchers and practitioners. In this paper, we propose … an approach to model spot prices that combines mean-reversion, spikes and stochastic volatility. Thereby we use different … correlation structures of electricity price spikes. Furthermore, all model parameters can easily be estimated with help of …

aggregation of GARCH processes of Drost and Nijman (1993). Using Swedish data, our estimation method produces an overall larger …

Market expectations of future return volatility play a crucial role in finance; so too does our understanding of the … informativeness of volatility forecasts produced by ARCH models versus the volatility forecasts derived from option prices and in … improving volatility forecasts produced by ARCH and option models and combinations of models. Daily and monthly data are …

The paper presents an empirical study of volatility spillover from oil prices to stock markets within an asymmetric … evidence of volatility spillover is found for all stock markets but the Swedish one, where only weak evidence is found. News … impact surfaces show that, although statistically significant, the volatility spillovers are quantitatively small. The stock …

Current models for predicting volatility do not incorporate information flow and are solely based on historical … predictor of its stock volatility. The results show that future stock volatility is better predicted by our method than the … flow or as an active source for new information influencing future volatility. Our data suggest that semantic content may …

the stock market volatility is compared in both the Anglophone world and the Sinophone world. I find that the stock market … volatility and the number of publicly available global news stories are strongly linked to each other in both languages …. Contemporaneous correlations between news and volatility are positive and highly significant, and regressions tell us that the …

This paper addresses stock market volatility in Germany between 1991 and 2018. Through a GARCH model with leverage term …, an estimation of volatility in the DAX is provided. Such estimation is then plugged into a quantile regression model … where potential economic determinants are analyzed. The results suggest that stock market volatility in Germany reached its …

seasonal pattern for the conditional volatility for the Swedish stock market has been found. The daily turnover in the Swedish … stock market has an impact on and eliminates to some extent seasonal patterns in conditional volatility. The daily turnover … returns will display a GARCH-pattern of behaviour if the number of trades on the stock market during a day are serially …