论文标题
稳定的合作出现在随机乘法生长中
Stable cooperation emerges in stochastic multiplicative growth
论文作者
论文摘要
了解合作的进化稳定性是生物学，社会学和经济学的核心问题。只有一些已知的机制可以保证合作的存在及其对作弊的鲁棒性。在这里，我们引入了一种新的机制，以在发生波动的情况下出现合作。我们认为代理商以多种方式随机变化的代理人。每个代理商都可以将她的一部分财富作为公共利益，在所有代理商中平均分配。我们表明，当代理人使用长时间的特工运作时，合作在个人层面上产生优势，因为它有效地筛选了代理人摆脱环境波动的有害影响。
Understanding the evolutionary stability of cooperation is a central problem in biology, sociology, and economics. There exist only a few known mechanisms that guarantee the existence of cooperation and its robustness to cheating. Here, we introduce a new mechanism for the emergence of cooperation in the presence of fluctuations. We consider agents whose wealth change stochastically in a multiplicative fashion. Each agent can share part of her wealth as public good, which is equally distributed among all the agents. We show that, when agents operate with long time-horizons, cooperation produce an advantage at the individual level, as it effectively screens agents from the deleterious effect of environmental fluctuations.
