The Sequential Prisoner's Dilemma: Evidence on Reciprocation
通过序贯囚徒困境实验，发现合作行为主要取决于先行者的选择，支持互惠而非无条件利他，且合作随重复和成本上升而下降。
We investigate how fairness concerns influence individual behaviour in social dilemmas. Using a Sequential Prisoner's Dilemma experiment we analyse the extent to which co‐operation is conditional on first‐mover co‐operation, repetition, economic incentives, subject pool (United Kingdom vs. United States) and gender. We find the most important variable influencing co‐operation is the first‐mover's choice, supporting the argument that co‐operative behaviour in social dilemmas reflects reciprocation rather than unconditional altruism. However, we also find that co‐operation decreases with repetition, and reciprocation falls as its material cost rises.