Expert performance is often evaluated in a one dimensional way by assuming that good experts have good outcomes. We examine the example of expertise in medicine and develop a model that allows for two dimensions of physician performance: Procedural decision making and skill performing...

Local opinion leaders may play a key role in easing information frictions associated with technology adoption. This paper analyzes the influence of physician investigators who lead clinical trials for new cancer drugs. By comparing diffusion patterns across 21 new cancer drugs, we separate...

We examine misconduct in credence good markets with price taking experts. We propose a market-level model in which price-taking experts extract surplus based on the value of their firm's brand and their own skill. We test the predictions of the model using sales complaint data for exclusive and...