It is well-known that, in static models, minimum wages generate positive worker rents and, consequently, inefficiently low effort. We show that this result does not necessarily extend to a dynamic context. The reason is that, in repeated employment relationships, firms may exploit workers'...

We conducted a field experiment in a controlled work environment to investigate the effect of motivational talk and its interaction with monetary incentives. We find that motivational talk significantly improves performance only when accompanied by performance pay. Moreover, performance pay...