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In this paper a flexible multiple regime GARCH(1, 1)-type model is developed to describe the sign and size asymmetries and intermittent dynamics in financial volatility. The results of the paper are ...

This study examines how oil market volatility and clean energy trends impact the stock performance of automakers, ...

Journal of Applied Econometrics, Vol. 17, No. 5, Special Issue: Modelling and Forecasting Financial Volatility (Sep. - Oct., 2002), pp. 509-534 (26 pages) Theoretical and practical interest in ...

It has become common practice to fit Garch models to financial time series by means of pseudo-maximum likelihood. In this study we investigate the behavior of several maximum likelihood-based methods ...

There are several approaches to dealing with heteroscedasticity. If the error variance at different times is known, weighted regression is a good method. If, as is ...

Stochastic volatility is the unpredictable nature of asset price volatility over time. It's a flexible alternative to the Black Scholes' constant volatility assumption.