Distribution of individual incomes in China between 1992 and 2009

作者：Guo, Qiang; Gao, Li^*

来源：Physica A: Statistical Mechanics and Its Applications , 2012, 391(21): 5139-5145.

DOI：10.1016/j.physa.2012.05.022

• Econophysics
• Cumulative distribution function
• Probability density function

This paper presents comprehensive analysis of the evolution of the distribution of individual annual incomes across the majority of the population in China from 1992-2009. The cumulative distribution functions (CDFs) and probability density functions (PDFs) are presented. Overall, the CDFs follow the Gaussian function C(x) = Ae(-(x-mu)2/2 sigma 2) for the majority of individuals in the population, while the PDFs obey the function P(x) = B(x - mu)e(-(x-mu)2/2 sigma 2) The width of the PDF has widened from 1992 to 2009, suggesting the factor (x - mu) has been progressively skewing the curve to the right. This long tail representing the high income range is reminiscent of an exponential distribution curve. This indicates that a few individuals obtain extremely high incomes, leading to increasing levels of financial inequality in China. 0 2012 Elsevier B.V.

• 出版日期2012-11-1
• 单位西北工业大学; 西安财经大学