Language, Meaning, and Games: A Model of Communication, Coordination, and Evolution: Comment
评论了Demichelis和Weibull(2008)的研究,指出其结论(只有高效结果在演化中稳定)是由偏好的不连续性而非小谎言成本本身导致的,并讨论不连续性在演化模型中为何不具吸引力。
Demichelis and Weibull (2008) show that adding lexicographic lying costs to coordination games with cheap talk yields a sharp prediction: only the efficient outcome is evolutionarily stable. I show that this result is caused by the discontinuity of preferences rather than by small lying costs per se. Finally, I discuss why discontinuity may not be an appealing assumption in evolutionary models.