Experiments, ethnography, and introspection provide evidence economic agents do not act
to maximize their narrowly defined self interest. Expanding the domain of preferences to …

This target article is concerned with the implications of the surprisingly different experimental
practices in economics and in areas of psychology relevant to both economists and …

Game theory, the formalized study of strategy, began in the 1940s by asking how
emotionless geniuses should play games, but ignored until recently how average people …

Why does trust vary so substantially across countries? This paper presents a general
equilibrium growth model in which heterogeneous agents transact and face a moral hazard …

This paper provides strong evidence challenging the self-interest assumption that dominates
the behavioral sciences and much evolutionary thinking. The evidence indicates that many …

During the last two decades economists have made much progress in understanding
incentives, contracts and organizations. Yet, they constrained their attention to a very narrow …

Some social theorists claim that trust is necessary for the smooth functioning of a democratic
society. Yet many recent surveys suggest that trust is on the wane in the United States. Does …

This paper uses a three-games (or triadic) design to identify trusting and reciprocating
behavior. A large literature on single-game trust and reciprocity experiments is based on the …

Several recent theories in behavioral game theory seek to explain the behavior of subjects
in experimental bargaining games. These models can be partitioned into two classes …

Evolutionary theory reveals that punishment is effective in promoting cooperation and
maintaining social norms. Although it is accepted that emotions are connected to …