Friend or Foe: Subjective Expected Relative Similarity as a Determinant of Cooperation
Friend or Foe: Subjective Expected Relative Similarity as a Determinant of Cooperation
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DOI：
10.1037/a0016073
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发表时间：
2009-08-01
影响因子：
4.1
通讯作者：
Fischer, Ilan
中科院分区：
文献类型：
--
作者：
Fischer, Ilan
主观期望相对相似性（Sers）是一种描述性理论，它解释了单步囚徒困境（PD）博弈中的合作水平。表面增强拉曼Sers预测，个人合作时，他们的主观感知与他们的对手的相似性超过了情境指数，即游戏的相似性阈值。一个思想实验和两个实验研究说明和探讨Sers的特点，表明该理论预测合作和竞争的单步PD游戏下的3个信息结构：（a）清晰和透明的相似性线索，（B）经验相似性，（c）语义相似性。这项研究的结果表明，感知相似性及其在Sers中的应用在亲属和群体选择机制的合作进化中发挥了重要作用。
Subjective expected relative similarity (SERS) is a descriptive theory that explains cooperation levels in single-step prisoner's dilemma (PD) games. SERS predicts that individuals cooperate whenever their subjectively perceived similarity with their opponent exceeds a situational index, namely the game's similarity threshold. A thought experiment and 2 experimental studies illustrate and explore SERS's characteristics, showing that the theory predicts cooperation and competition in single-step PD games under 3 informational structures: (a) clear and transparent similarity cues, (b) experienced similarity, and (c) semantic similarity. The study's findings suggest that perceived similarity and its application in SERS play an important role in the evolution of cooperation underlying both kin and group selection mechanisms.