This paper examines the issue of whether workers learn productive skills from their co-workers, even if those skills are unethical. Specifically, we estimate whether Jose Canseco, one of the best baseball players in last few decades, affected the performance of his teammates. In his...

This paper combines representative worker-level data that cover time-varying job-level task characteristics of an economy over a long time span with sector-level bilateral trade data. We carefully create longitudinally consistent workplace characteristics from the German Qualification and Career...