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–regime and Markov-switching GARCH (MSGARCH) models, from a risk management perspective. I find that, for daily, weekly, and ten … étude à grande échelle empirique pour comparer la` performance de prévision de modèle GARCH sans changement de régime et de … modèle GARCH à changement de régimes Markovien (MSGARCH) du point de vue d’un gestionnaire des risques. Les résultats …
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In this research paper ARCH-type models and option implied volatilities (IV) are applied in order to estimate the Value-at-Risk (VaR) of a stock index futures portfolio for several time horizons. The relevance of the asymmetries in the estimated volatility estimation is considered. The empirical...
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This paper proposes a novel and simple approach to compute daily Value at Risk (VaR) and Expected Shortfall (ES) directly from high-frequency data. It assumes that financial logarithm prices are subordinated unifractal processes in the intrinsic time, which stochastically transforms the clock...
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