The study of social dilemmas is the study of the tension between individual and collective
rationality. In a social dilemma, individually reasonable behavior leads to a situation in …

There is strong evidence that people exploit their bargaining power in competitive markets
but not in bilateral bargaining situations. There is also strong evidence that people exploit …

I assume multiple types of players--“rational egoists,” as well as “conditional cooperators”
and “willing punishers”--in models of nonmarket behavior. I use an indirect evolutionary …

People are reciprocal if they reward kind actions and punish unkind ones. In this paper we
present a formal theory of reciprocity. It takes into account that people evaluate the kindness …

Researchers from across the social sciences have found consistent deviations from the
predictions of the canonical model of self-interest in hundreds of experiments from around …

Game theory is central to understanding human behavior and relevant to all of the
behavioral sciences—from biology and economics, to anthropology and political science …

The results of an experiment with 91 Japanese participants confirmed the hypothesis that
players of a Prisoner's Dilemma game would cooperate more with an in-group member than …

We observed the behaviors of the same people across five games–two prisoner's dilemma
games, a trust game (in which the subject took on the role of both truster and trustee), a …

Most cognitive approaches for explaining cooperation in Prisoner's Dilemma games include
the view that many people believe that mutual cooperation is generally a gainful strategy to …

We propose that a “social exchange heuristic” is as important as the cheater detection
mechanism for attaining mutual cooperation in social exchange. The social exchange …