To address the impact of regulation on ethical concerns of consumers, we study the example of minimum wages. In our experimental market, consumers have monopsony power, firms set prices and wages, and workers are passive recipients of a wage payment. We find that the consumers exhibit...

We investigate whether peer punishment is an efficient mechanism for enforcing cooperation in an experiment with a long time horizon. Previous evidence suggests that the costs of peer punishment can be outweighed by the benefits of higher cooperation, if (i ) there is a sufficiently long time...