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本文利用收入分布动态法,运用Kernel密度估计考察了1995—2004年期间中国城市居民收入分布的动态演进。本文发现全国范围内城市居民的收入分布由1995年较为明显的“单峰”分布逐渐演化到2004年萌芽状的“多峰”分布;地级市的收入分布则由“单峰”分布演进到明显的“多峰”分布;县级市则基本保持一个“单峰”分布;主导城市居民收入分布演进的力量主要来自地级市。在省级层面上,城市居民收入分布呈现由“单峰”分布演进到“双峰”分布的趋势,但是“峰”间人均收入差距缩小,省内城市间的收入水平有收敛态势。
In this paper, we use the dynamic distribution of income distribution and the Kernel density estimation to examine the dynamic evolution of income distribution in urban China during 1995-2004. This paper finds that the distribution of income of urban residents in China has gradually evolved from the “single peak” distribution in 1995 to the “multi-peak” distribution sprouting in 2004. The income distribution of prefecture-level cities has been changed from “ Peak ”distribution evolves to obvious “ multi-peak ”distribution; the county-level city basically maintains a “ single peak ”distribution; the power that dominates the evolution of income distribution of urban residents comes mainly from prefecture-level cities. At the provincial level, the distribution of income of urban residents showed a trend of distribution from “unimodal ” to “bimodal ” distribution, but the per capita income gap between “Feng ” narrowed, and the income level among the cities in the province Convergence situation.