| 加权小世界网络上的财富分布 |
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| 引用本文： | 焦誉.加权小世界网络上的财富分布[J].合肥学院学报(自然科学版),2009,19(3):59-62. |
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| 作者姓名： | 焦誉 |
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| 作者单位： | 安徽行政学院,信息科学系,合肥,230059 |
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| 摘 要： | 网络演化博弈是研究社会财富分布的重要工具．使用经典的小世界网络来模拟社会网络的拓扑结构，并引入权重来表示个体联系的强度与频率，边的权重可以通过一个加权参数β进行调节．然后在此加权网络上研究了演化雪堆博弈的动力学过程，并使用基尼系数和帕累托指数两个经济学指标对系统的财富分布公平程度进行了量化研究．结果表明，系统的财富分布与参数β存在非单调的关系，并且公平程度在β=-1时达到最高．
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| 关 键 词： | 演化博弈 雪堆博弈 小世界网络 财富分布 |
The Wealth Distribution in a Weighted Small-world Network |
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| JIAO Yu.The Wealth Distribution in a Weighted Small-world Network[J].Journal of Hefei University :Natural Sciences,2009,19(3):59-62. |
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| Authors: | JIAO Yu |
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| Institution: | Department of Information Science;Anhui Administration College;Hefei 230059;China |
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| Abstract: | The wealth distribution of evolutionary snowdrift game is investigated in a weighted smallworld network. The weight parameterβ in our model, which affects the edge-weight＇s heterogeneity, is studied. Two important parameters in economics （Gini coefficient and Pareto exponent） are employed to analyze the inequality of wealth distribution in the structural population. Simulation results show that the inequality of wealth reaches its minimal value when β =- 1. Moreover, the results are in agreement with most data in the real world. |
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| Keywords: | evolutionary game snowdrift game small-world networks wealth distribution |
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