trustworthiness in one-shot interactions. In addition, repeated interaction increases trust and reciprocity with or without …

paper, I consider an evolutionary model of reciprocity. The main findings of this paper are that evolution can support … cohesiveness of the relationships. These findings match stylized facts learned from experimental and field studies of reciprocity. …

We design experiments to study the extent to which individuals differ in their motivations behind costly punishment and … both inequity-aversion and reciprocity, while smaller fractions are primarily motivated by pure inequity-aversion and pure … reciprocity. These findings provide new insights into the literature on other-regarding preferences and may help to reconcile …

Many experimental studies indicate that people are motivated by reciprocity. Rabin (1993) develops techniques for … reciprocity for extensive games in which the sequential structure of a strategic situation is made explicit. We propose a new … solution concept— sequential reciprocity equilibrium—which is applicable to extensive games, and we prove a general equilibrium …

This paper reports the results of experiments designed to isolate the impact of various combinations of the following …