We present a geometric approach to the finite Rational Inattention (RI) model, recasting it as a convex optimization problem with reduced dimensionality that is well suited to numerical methods. We provide an algorithm that outperforms existing RI computation techniques in terms of both speed...

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...