时间成本、多人雪堆博弈与合作演化研究
TIME COST、N-PERSON SNOWDRIFT GAMES AND COOPERATIVE EVOLUTION
在全混合群体下, 从现有雪堆模型抑制合作的不足出发, 建立一个考虑时间成本的更一般化的多人雪堆模型, 对多人合作的演化动态进行了分析. 结果表明: 临界值~
Under well-maxed population, we explore a Generalized N-person Snowdrift Games (GNSG) via incorporating time cost into the existing model in order to analyze N-person cooperation evolutionary dynamic. The study argues that the existence of threshold below which collective action can't be materialized provides a sufficient conditions for a completely U-style evolutionary dynamic, there is a unstable equilibrium which divides the system into two basins of attraction, the relative scale of each basins of attraction reflects the difficult to achieve a collection coordination, the group size also restrains emergence of cooperation. Time cost, which promotes cooperation at the same direction, can affect agents' cooperation behavior via magnifying their gain or loss variables. Due to the benefit-cost ratio relatively fixed, time cost can become the main power of eliminating the unfavorable factors to collective cooperation mentioned above, and then making the emergence of cooperative behavior become possible.
雪堆博弈 / 时间成本 / 多人合作 / 演化博弈理论. {{custom_keyword}} /
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