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复制者动态解释模型的研究:一种基本方法的修正 被引量:5

A Modification of Replicator Dynamics
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摘要 本文针对复制者动态(Replicator Dynamics)解释演化过程的模型构造和研究脉络,讨论演化博弈论常用模型存在的问题,即“某策略个体的期望收益与群体的平均期望收益的差值”(适应度)决定策略类型代际的变化率是利用博弈完成之后的结果解释该轮发生之前现象。作为修正,本文直接构造用代际个体数目变化考察的复制者动态模型,并验证可依此讨论解的性质(演化的动态性质)。 We discuss the problem of the models, which axe commonly used in evolutionary game theory, i.e. the difference between the fitness of population (or expected payoff value) following a certain strategy and the average fitness of the entire population following the strategy between generations. As a modification, we construct a model directly with the numbers of the population following a certain strategy between generations, and prove that the nature of evolutionary dynamics can be discussed according to the model.
作者 章平 朱宪辰
出处 《南方经济》 北大核心 2007年第1期3-11,共9页 South China Journal of Economics
基金 国家自然科学基金项目(70573046) 高校博士学科点专项科研基金资助课题(20060288016) 江苏省高校研究生科技创新计划项目 南京理工大学优秀博士研究生创新培养基金项目资助成果
关键词 适应 动态演化 复制者动态 Adaptation Evolutionary Dynamics Replicator Dynamics
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参考文献16

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