Because uncertainty is high in bad times, investors find it harder to assess firm prospects and, hence, should value analyst output more. However, higher uncertainty makes analysts' tasks harder so it is unclear if analyst output is more valuable in bad times. We find that, in bad times, analyst...

I provide a taxonomy of market imperfections built around the economic forces underlying them. Market imperfections affect virtually every transaction in some way, generating costs which interfere with trades that rational individuals make, or would make in the absence of the imperfection....

I develop a framework of the buildup and outbreak of financial crises in an asymmetric information setting. In equilibrium, two distinct economic states arise endogenously: "normal times", periods of modest investment, and "booms", periods of expansionary investment. Normal times occur when the...