Motivated by a novel empirical finding that variance risk premium (VRP) predicts trading volume, we analyze an asset pricing model where agents are initially uncertain about their subjective models for interpreting public news announcements. Such a setting is micro-founded by ambivalence in...

This paper develops a dynamic model of prices and trades in a risky security and an option, where agents use different subjective likelihood functions to interpret a public signal, but they are initially uncertain about the signal precision or mean. Our model can explain the seemingly overpriced...