This paper argues that the capacity of financial markets to aggregate dispersed information about economic conditions is diminished in times of distress, resulting in countercyclical uncertainty. Building on a rational expectations equilibrium dynamic environment, I model informed traders as...

We propose a theory of asset prices that emphasizes heterogeneous information as the main element determining prices of different securities. Our main analytical innovation is in formulating a model of noisy information aggregation through asset prices, which is parsimonious and tractable, yet...

We study the interplay of share prices and firm decisions when share prices aggregate and convey noisy information about fundamentals to investors and managers. First, we show that the informational feedback between the firm's share price and its investment decisions leads to a systematic...