G13 - Contingent Pricing; Futures Pricing
-
-
The Equity Premium and the Volatility Spread: The Role of Risk-Neutral Skewness
We introduce the Homoscedastic Gamma [HG] model where the distribution of returns is characterized by its mean, variance and an independent skewness parameter under both measures. The model predicts that the spread between historical and risk-neutral volatilities is a function of the risk premium and of skewness.