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The SARS-CoV-2 coronavirus that causes the COVID-19 disease led to the most significant change in the world order over … that have been discussed in tourism, global health security and risk management in business as well as the social and …
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The stochastic volatility model usually incorporates asymmetric effects by introducing the negative correlation between the innovations in returns and volatility. In this paper, we propose a new asymmetric stochastic volatility model, based on the leverage and size effects. The model is a...
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