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implied volatility of a 3 – month Nordea bank call option contract returns, for changing conditional variances to spot any …
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The persistent nature of equity volatility is investigated by means of a multi-factor stochastic volatility model with … model a time-varying generalization of the HAR model for the realized volatility series. It emerges that during the recent … stochastic volatility model suggest that the change in the dynamic structure of the realized volatility during the financial …
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, and the Deutschmark-US dollar. The estimation results for both models show: (i) that the unrestricted model outperforms …
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