I use variation in approval time for generic drugs to shed light on the objectives of the federal agency in charge of granting entry permission for these drugs (FDA). Applications belonging to firms later found to have engaged in fraud or corruption were approved nine months faster on average,...

I use variation in approval time for generic drugs to shed light on the objectives of the federal agency in charge of granting entry permission for these drugs (FDA). Applications belonging to firms later found to have engaged in fraud or corruption were approved nine months faster on average,...

Modern investors face a high-dimensional prediction problem: thousands of observable variables are potentially relevant for forecasting. We reassess the conventional wisdom on market efficiency in light of this fact. In our model economy, which resembles a typical machine learning setting, N...