English Abstract: In this paper, we investigate the existence of volatility clustering, asymmetric price movements … the volatility, we use ARCH-type models based on varying variance on a daily and weekly basis. In addition to ARCH and … the evaluation of the forecast performance of the models. By comparing the volatility forecasts of the models with the …

GARCH models for daily, weekly and monthly volatility in composite, financial, services and industry indices of Istanbul … Stock Exchange (ISE). Some properties of financial data namely volatility clustering, asymmetrical price movements, leverage … volatility along with classical GARCH model, EGARCH, GJR-GARCH, Asymmetrical PARCH and Asymmetrical CGARCH models have been …

model for gold market index volatility is EGARCH (1,1). There is no leverage effect in this model, but positive shocks are … the result of more volatility than negative shocks …

volatility of interest rates play a crucial role in pricing financial instruments. In this empirical study, we try to investigate … interest rate process. We find that the volatility of the interest rate is not affected by policy change. However, the level of …