Journal of Risk Model Validation

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The use of range-based volatility estimators in testing for Granger causality in risk on international capital markets

Marcin Fałdziński and Magdalena Osińska

This study utilizes the extreme value theory (EVT) approach to compare the performance of a wide variety of range-based volatility estimators in the analysis of causality in risk between emerging and developed markets. The AR(1)-GARCH(1,1) model with t-distribution is used as a benchmark. Regulator and firm loss functions are used to select the best volatility model. Two tests of causality in risk are used in our empirical study. The AR-GARCH model with EVT outperforms the other approaches in the case of huge risk. Among the most likely risk-taking markets are Standard & Poor's 500, CAC 40, Nikkei 225, Nasdaq and FTSE 100.

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