论文标题

基于具有交换范围和本地支持偏见的资产交换模型的区域不平等模拟

Regional Inequality Simulations Based on Asset Exchange Models with Exchange Range and Local Support Bias

论文作者

Kato, Takeshi, Kudo, Yasuyuki, Mizuno, Hiroyuki, Hiroi, Yoshinori

论文摘要

为了了解区域不平等问题,我们根据经济物理学中现有的动力学收入交换模型提出了新的区域资产交换模型。我们通过设置空间交换范围并在等效交换中添加偏见来做到这一点。资产分配和GINI系数的模拟表明,抑制区域不平等需要,首先需要增加区域内经济循环速率,其次,交换范围(区域间经济区)的缩小。但是,避免由于重复交换而导致的资产过度集中,需要添加第三个措施;本地支持偏见(分配规范)。一项综合的解决方案促进了这三项措施,可以将资产分布从过度汇总转移到指数分布,并最终接近正态分布,从而进一步降低了Gini系数。展望未来,我们将通过基于资产,对二维空间的路径依赖,根据差异偏见以及验证措施减少实际社区的区域不平等的措施来扩展这些模型。

To gain insights into the problem of regional inequality, we proposed new regional asset exchange models based on existing kinetic income-exchange models in economic physics. We did this by setting the spatial exchange range and adding bias to asset fraction probability in equivalent exchanges. Simulations of asset distribution and Gini coefficients showed that suppressing regional inequality requires, firstly an increase in the intra-regional economic circulation rate, and secondly the narrowing down of the exchange range (inter-regional economic zone). However, avoiding over-concentration of assets due to repeat exchanges requires adding a third measure; the local support bias (distribution norm). A comprehensive solution incorporating these three measures enabled shifting the asset distribution from over-concentration to exponential distribution and eventually approaching the normal distribution, reducing the Gini coefficient further. Going forward, we will expand these models by setting production capacity based on assets, path dependency on two-dimensional space, bias according to disparity, and verify measures to reduce regional inequality in actual communities.

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