This paper studies the effect of changes in foreign competition on the incentives faced by U.S. managers in the form of wage structures, promotion profiles, and job turnover. We use a panel of executives and measure foreign competition as import penetration. Using tariffs and exchange rates as...

We analyse an experimental public goods game in which group members can endogenously determine whether they want to supplement a standard voluntary contribution mechanism with the possibility of rewarding or punishing other group members. We find a large and positive effect of endogenous...

We test the hypothesis that "genuine" or "convincing" smiling is a costly signal that has evolved to induce cooperation in situations requiring mutual trust. Potential trustees in a trust game made video clips for viewing by potential trusters before the latter decided whether to send them...