Escobar, Marcos; Gong, Zhenxian - In: Risks 9 (2021) 8, pp. 1-23
In this paper, we propose a new multivariate mean-reverting model incorporating state-of-the art 4/2 stochastic volatility and a convenient principal component stochastic volatility (PCSV) decomposition for the stochastic covariance. We find a quasi closed-form characteristic function and...