This paper investigates the forecasting performance of three popular variants of the non-linear GARCH models, namely VS-GARCH …, GJR-GARCH and Q-GARCH, with the symmetric GARCH(1,1) model as a benchmark. The application involves ten European stock … price indexes. Forecasts produced by each non-linear GARCH model and each index are evaluated using a common set of …

introduction had on electricity market. The most relevant effect is the reduction of the level of electricity price's volatility … multiple linear regression. Then, to study volatility dynamics, we fit a two-states Markov-switching model to represent a high-volatility … and a low-volatility states of the world. This model highlighted that in both states the level of volatility is lower and …

This paper studies the information content of the S&P 500 and VIX markets on the volatility of the S&P 500 returns. We … risk-neutral distributions as well as the term structure of volatility smiles and of variance risk premia. We find that the …