The Evolution of Cooperation in Infinitely Repeated Games: Experimental Evidence
针对无限重复博弈理论预测不精确的批评，通过实验研究被试在无限重复囚徒困境中合作行为的演化，发现合作虽可维持但条件比子博弈完美均衡或风险占优更严格。
A usual criticism of the theory of infinitely repeated games is that it does not provide sharp predictions since there may be a multiplicity of equilibria. To address this issue, we present experimental evidence on the evolution of cooperation in infinitely repeated prisoner's dilemma games as subjects gain experience. We show that cooperation may prevail in infinitely repeated games, but the conditions under which this occurs are more stringent than the subgame perfect conditions usually considered or even a condition based on risk dominance.