mechanism reliably supports the evolution of cooperation when actions vary continuously. Ambiguous reciprocity, a strategy …Repeated interactions provide a prominent but paradoxical hypothesis for human cooperation in one-shot interactions … generally ruled out in models of reciprocal altruism, completely undermines cooperation under repeated interactions, which …

This paper surveys recent experimental and field evidence on the impact of concerns for fairness, reciprocity and …

that only workers who display positive reciprocity in a lab experiment show reciprocal performance responses in the field …, while workers who lack positive reciprocity in the lab do not respond to the wage increase even if they feel underpaid at … interpret previous contradictory findings in the literature. -- Fairness Perception ; Positive Reciprocity ; Field Experiment …