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使用西格函数和博尔茨曼分布,对可行的收入平等进行跨国分析
Thitithep Sitthiyot1, Kanyarat Holasut2
1Department of Banking and Finance, Faculty of Commerce and Accountancy, Chulalongkorn University, Bangkok, Thailand.
PloS one
|August 8, 2025
概括
这项研究确定了在71个国家实现可行的平等的最佳收入分配. 更好的制度与实际和理想收入分配之间的差距较小相关,有助于政策制定.
科学领域:
- 经济学 经济学 经济学
- 社会科学 社会科学 社会科学
- 定量分析 定量分析
背景情况:
- 收入不平等带来了重大的社会,经济和环境挑战.
- 帕克和金 (2021) 之前的研究引入了一个分析收入分配的框架.
- 了解可行的收入平等对于政策干预至关重要.
研究的目的:
- 计算最优的收入分配,代表可行的收入平等和最大化社会福利.
- 测试跨越不同国家的可行的平等线的普遍性.
- 探索机构质量与收入分配差距之间的关系.
主要方法:
- 在Park和Kim (2021) 的基础上,利用了西格函数和博尔兹曼分布.
- 分析了世界银行的71个国家的五分之一收入份额和吉尼指数数据 (2021年).
- 采用洛伦茨曲线分析来可视化和比较收入分布.
主要成果:
- 最佳收入分布,吉尼指数和洛伦茨曲线在71个国家显示出了显著的相似性.
- 证实了普遍可行的平等线的存在,支持帕克和金的 (2021) 猜测.
- 发现机构质量与实际和最佳收入分配之间的差异之间存在负相关性.
- 实际和最佳五分位数收入份额之间的估计关系,用于实际政策应用.
结论:
- 一个可行的收入平等的通用基准是可以识别的,并且适用于所有国家.
- 更强大的经济和政治制度与收入分配更接近可行的平等有关.
- 这些发现为设计有效的收入再分配政策提供了定量基础.
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