Alghalith, Moawia; Floros, Christos; Gillas, … - In: Risks : open access journal 8 (2020) 2/35, pp. 1-16
We propose novel nonparametric estimators for stochastic volatility and the volatility of volatility. In doing so, we … relax the assumption of a constant volatility of volatility and therefore, we allow the volatility of volatility to vary … Standard & Poor´s 500 equity index, the estimates revealed strong evidence that both volatility and the volatility of …