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进化稳定均衡与纳什均衡
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摘要
为了让读者对进化博弈理论的基本概念——进化稳定策略（Evolutionarily Stable Strategy）有一个基本的了解，本文主要介绍进化稳定策略概念的提出及其发展。为了便于理解，文中利用一些具体例子简要地介绍进化稳定均衡（就是系统选择进化稳定策略时所处的均衡）求法、应用以及它与纳什均衡之间的关系。最后指出了传统进化稳定策略定义的缺陷及经济学家们对此所作的进一步研究。
关键词：进化博弈；进化稳定策略；进化稳定状态；纳什均衡
Abstract:
This paper is mainly about the concept of Evolutionarily Stable Strategy (ESS) and its developments. For the convenience of the readers’ better understanding of this basic concept in Evolutionary Game Theory, we use some cases to introduce the solution of Evolutionarily Stable Equilibrium (ESE, that is, the equilibrium when the system selects ESS), its applications and the relationships between Nash Equilibrium and ESE. Finally, we point out the flaws of the traditional concept of ESS and some economists’ researches on this.
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