Bollerslev, Tim, 1958- , Marrone, James V. , Xu, Lai and Zhou, Hao. "Stock Return Predictability and Variance Risk Premia: Statistical Inference and International Evidence, 2011-052," Finance and Economics Discussion Series (Revised December 2011). https://fraser.stlouisfed.org/title/1491/item/723369, accessed on May 31, 2026.