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摘要翻译：
利用一个财富分配模型，其中交易者具有淬火的随机储蓄倾向，他们之间通过两部分交易进行交易，通过引入使用一对连续可调参数的优先选择规则，我们模拟了富人交易率的提高。双边贸易定义了一个不断增长的贸易网络，由贸易商通过相互贸易关系联系在一起。在优先选择规则下，该网络表现出高度异构性，节点度和链路权重分布无标度，并呈现出非平凡的强度-度相关特征。通过详细的数值模拟和有限尺度分析，我们证明了相关的临界指数是调谐参数的连续函数。然而，对于所有正的调谐参数，财富分布都被观察到遵循众所周知的帕累托定律。
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英文标题：
《Weighted Trade Network in a Model of Preferential Bipartite Transactions》
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作者：
Abhijit Chakraborty and S. S. Manna
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最新提交年份：
2009
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分类信息：
一级分类：Quantitative Finance 数量金融学
二级分类：General Finance 一般财务
分类描述：Development of general quantitative methodologies with applications in finance
通用定量方法的发展及其在金融中的应用
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英文摘要：
Using a model of wealth distribution where traders are characterized by quenched random saving propensities and trade among themselves by bipartite transactions, we mimic the enhanced rates of trading of the rich by introducing the preferential selection rule using a pair of continuously tunable parameters. The bipartite trading defines a growing trade network of traders linked by their mutual trade relationships. With the preferential selection rule this network appears to be highly heterogeneous characterized by the scale-free nodal degree and the link weight distributions and presents signatures of non-trivial strength-degree correlations. With detailed numerical simulations and using finite-size scaling analysis we present evidence that the associated critical exponents are continuous functions of the tuning parameters. However the wealth distribution has been observed to follow the well-known Pareto law robustly for all positive values of the tuning parameters.
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PDF链接：
https://arxiv.org/pdf/0909.3984
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