arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1006.4595physics.soc-phcond-mat.stat-mechq-fin.GN
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资产交换模型中的财富分布

Wealth Distributions in Asset Exchange Models

P. L. Krapivsky, S. Redner

摘要:

个体在经济互动中如何积累财富?我们概述了一个简单的微观模型的后果,在这个模型中,个人之间的资产重复成对交换建立了人口的财富分布。这种分布是根据一般的交换规则确定的-涉及固定数量或固定比例的个人财富的交易,以及随机或贪婪的交换。在贪婪的乘法交换中,出现了一个不断演化的幂律财富分布,这是一个定性地模仿经验观察的特征。

英文摘要:

How do individuals accumulate wealth as they interact economically? We outline the consequences of a simple microscopic model in which repeated pairwise exchanges of assets between individuals build the wealth distribution of a population. This distribution is determined for generic exchange rules --- transactions that involve a fixed amount or a fixed fraction of individual wealth, as well as random or greedy exchanges. In greedy multiplicative exchange, a continuously evolving power law wealth distribution arises, a feature that qualitatively mimics empirical observations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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