Previous research has shown an interindividual-intergroup discontinuity effect: intergroup interactions generally lead to less cooperative outcomes than interindividual interactions. We replicated the discontinuity effect in the deterministic prisoners dilemma, but we found that groups were more...

The principal findings of behavioral economics and cognitive psychology over the past several decades have been to show that human beings deviate from ideal precepts of rationality in many settings, showing inconsistent judgment in the face of framing and other formal manipulations of the...

Three studies of attitudes toward tax policies were conducted on the World Wide Web. The results show several effects. In penalty aversion, subjects preferred bonuses over penalties, when policies differ only in how they are formally described. In the Schelling effect, subjects prefer both...