We summarize and review the literature on two types of economic experiments. First, we explore the consequences for environmental policies of the vast body of literature refuting the assumption that humans are concerned only with their own private welfare. We review the literature addressing...

We conduct a field experiment to measure cooperation among groups of recreational fishermen at a privately owned fishing facility. Group earnings are greater when group members catch fewer fish. Consistent with classical economic theory, though in contrast to prior results from laboratory...