A Robust General Equilibrium Stochastic Volatility Model with |
Weidong Xu |
Hongyi Li |
and |
Chongfeng Wu |
This paper investigates the implications of model uncertainty for the equity premium in a stochastic volatility model. We consider a general equilibrium setting with one representative agent who has a stochastic differential utility. The results show that the equilibrium equity premium consists of a market risk premium, a stochastic volatility risk premium and an uncertainty aversion premium. Further, the robustness can increase the equilibrium equity premium and drive down the equilibrium risk-free rate. |
Key Words: General equilibrium; Robust control; Stochastic volatility model; Equity premium. |
JEL Classification Numbers: C61, D51, D81. |