Income composition inequality of Chinese residents and fiscal redistribution effect: An empirical analysis on individual income tax and transfer system

Xunhua Tu, Jie Yan and Jing Zheng

PLOS ONE, 2024, vol. 19, issue 1, 1-21

Abstract: Based on the data of China Family Panel Studies (CFPS), this paper decomposed Chinese residents’ income into labor income and capital income by income source, and measured the income inequality and income composition inequality of Chinese residents during 2010–2018. We take the Gini coefficient as a measure of inequality and, by decomposing it by income source, analyze the absolute and relative marginal effects of capital income and labor income on the overall income inequality. On this basis, this paper discusses the redistributive effect of financial instruments such as personal income tax and transfer payment on income inequality and income composition inequality. The results show that capital income is not only the main driving factor for the increase of overall income inequality, but also its influence on inequality is gradually increasing. The results of the redistribution effect of fiscal instruments show that although individual income tax and transfer payment both help to reduce the overall income inequality, only individual income tax can reduce the inequality of income composition, while transfer payment will exacerbate it. In the background of the rising share of capital income, it may widen the income distribution gap in the long run. Hence, future fiscal redistribution efforts should consider the income composition inequality. This includes further promotion of individual income tax reforms, optimization of the tax rate structure, enhancement of relevant tax laws governing capital income like property income, and continuous improvement in the redistributive impact of fiscal instruments.

Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0296129

DOI: 10.1371/journal.pone.0296129

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