中文摘要：

本文以自然产权为例,建立了一个考察自发社会秩序的行为经济理论模型,证明禀赋效应对自发社会秩序形成有根本性重要作用：禀赋效应使得人们更愿意为拥有之物而战,从而导致他人对先占权的自发尊重;当社会中具有重度禀赋效应的个体达到较高比例,对先占权的尊重就会普遍存在,形成无须依赖第三方实施的自然产权秩序。并且,有利于尊重先占权的重度禀赋效应这一心理倾向,看似非理性,但在时刻面临侵略威胁的社会中却有益于个体生存竞争,所以它们最终得以穿透演化的筛子,为自发社会秩序的形成铺平了道路。

英文摘要：

This paper explores a fundamental topic in the literature of institution, that is, the self-enforced social order. Our behavioral economic model shows how endowment effect enables spontaneous orders to emerge in a society without the third party＇s enforcement. First comers are inclined to spend seemingly unnecessary excessive resources to protect their endowments and to threaten the late comers. This mechanism matters for emergence of natural property rights.