We study the coevolution of cooperation, preferences, and cooperative signals in an environment where individuals … in (social norms of) cooperation in societies which are not driven by social or environmental shocks. …

). In this paper we address this question by using a measure of costly cooperation elicited in a laboratory experiment to … laboratory experiments with 645 subjects at a trucker training program in the Midwestern US. The experiment use a version of the … prisoner's dilemma game to measure subjects' preferences for cooperation. The authors observe the same subjects on the job for …

We measure a specific form of other-regarding behavior, costly cooperation with an anonymous other, among 645 subjects … of costly cooperation towards an anonymous other in a setting that does not admit of repeated-game or reputation …-effect explanations. We find that individual differences in costly cooperation observed in the lab do predict individual differences in …

conflicts. A first experiment shows that a between-group conflict leads to within-group cooperation and particularly individuals … second experiment reveals that prosocials' contributions to the group-specific or collective good vary as a function of the … personal costs of within-group versus collective cooperation, supporting the weighted average social preference theory by …

modification to show how cooperation can arise in nonrepeated versions of the Prisonerś Dilemma (PD). We then show that our … cooperation in the PD. -- nonrationality ; single-shot games ; Prisonerś Dilemma ; Travelerś Dilemma ; Schelling ; emotions …

modification to show how cooperation can arise in nonrepeated versions of the Prisoner's Dilemma (PD). We then show that our … cooperation in the PD …