| 来源类型 | Monograph (IIASA Interim Report)
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| 规范类型 | 报告
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| Impact of generalized benefit functions on the evolution of cooperation in spatial public goods games with continuous strategies. |
| Chen X; Szolnoki A; Perc M; Wang L
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| 发表日期 | 2012
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| 出版者 | IIASA, Laxenburg, Austria: IR-12-030
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| 出版年 | 2012
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| 语种 | 英语
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| 摘要 | Cooperation and defection may be considered as two extreme responses to a social dilemma. Yet the reality is much less clear cut. Between the two extremes lies an interval of ambivalent choices, which may be captured theoretically by means of continuous strategies defining the extent of the contributions of each individual player to the common pool. If strategies are chosen from the unit interval, where 0 corresponds to pure defection and 1 corresponds to the maximal contribution, the question is what is the characteristic level of individual investments to the common pool that emerges if the evolution is guided by different benefit functions. Here we consider the steepness and the threshold as two parameters defining an array of generalized benefit functions, and we show that in a structured population there exist intermediate values of both at which the collective contrbutions are maximal. However, as the cost-to-benefit ratio of cooperation increases the characteristic threshold decreases, while the corresponding steepness increases. Our observations remain valid if more complex sigmoid functions are used, thus reenforcing the importance of carefully adjusted benefits for high levels of public coperation. |
| 主题 | Evolution and Ecology (EEP)
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| URL | http://pure.iiasa.ac.at/id/eprint/10245/
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| 来源智库 | International Institute for Applied Systems Analysis (Austria)
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| 资源类型 | 智库出版物
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| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/125885
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推荐引用方式
GB/T 7714 |
Chen X,Szolnoki A,Perc M,et al. Impact of generalized benefit functions on the evolution of cooperation in spatial public goods games with continuous strategies.. 2012.
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文件名：
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IR-12-030.pdf
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格式：
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Adobe PDF
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