Bollerslev, Tim; Sizova, Natalia; Tauchen, George - School of Economics and Management, University of Aarhus - 2009
Stock market volatility clusters in time, carries a risk premium, is fractionally integrated, and exhibits asymmetric … shapes and patterns in the sample autocorrelations of the volatility and the volatility risk premium, and the dynamic cross …-correlations of the volatility measures with the returns calculated from actual high-frequency intra-day data on the S&P 500 aggregate …