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...

We analyze how speculative financial innovation affects stock prices, option prices, risk premium, market liquidity, and investor welfare in an economy with heterogeneous beliefs. When investors disagree about the covariance of the newly introduced stocks with the original stocks, we show that...

We analyze how speculative financial innovation affects stock prices, risk premiums, market liquidity, and investor welfare in an economy with heterogeneous beliefs. When investors disagree about the covariance of the newly introduced stocks with the original stocks, we show that financial...