We show what the rational inattention model predicts about the treatment effect of information provided during a randomized control trial. This is a non-trivial question because the model implies optimal attention choice before, during, and after an information treatment. The predictions of the...

The paper examines the welfare properties of rational learning by privately informed risk-neutral firms. It is shown that the market solution is inefficient, with firms putting too much weight on their private information and public information therefore accumulating suboptimally slowly. It...