the variance of idiosyncratic returns. The estimation is performed on a time series of returns and option prices from 2006 …

models featuring smooth ambiguity preferences. We rely on semi-nonparametric estimation of a flexible auxiliary model in our … structural estimation. Based on the market and aggregate consumption data, our estimation provides statistical support for asset …-varying volatility are preferred to the long-run risk model. We analyze asset pricing implications of the estimated models …