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Distribution of individual incomes in China between 1992 and 2009

机译:1992年至2009年中国个人收入分布

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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-μ) ~2/2σ ~2 for the majority of individuals in the population, while the PDFs obey the function P(x)=B(x-μ)e-(x-μ) ~2/2σ ~2. The width of the PDF has widened from 1992 to 2009, suggesting the factor (x-μ) 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.
机译:本文对1992-2009年中国大多数人口的个人年收入分布演变进行了综合分析。介绍了累积分布函数(CDF)和概率密度函数(PDF)。总体而言,对于大多数人口而言,CDF遵循高斯函数C(x)= Ae-(x-μ)〜2 /2σ〜2,而PDF遵循函数P(x)= B(x- μ)e-(x-μ)〜2 /2σ〜2。 PDF的宽度从1992年到2009年扩大,这表明系数(x-μ)逐渐将曲线向右倾斜。代表高收入范围的长尾巴让人想起指数分布曲线。这表明少数人获得了极高的收入,从而导致中国金融不平等程度的加剧。

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