• 论文 •

### 库兹涅茨比率的分解及其在我国地区差异分析中的应用

1. 北京师范大学资源与环境科学系, 北京 100875
• 收稿日期:2002-10-16 修回日期:2002-12-17 出版日期:2003-07-20 发布日期:2003-07-20
• 基金资助:
西部重大科学计划(90102013)和国家自然科学基金资助项目(49971001)成果.

### Decomposition of Kuznetz Ratio and Its Application in Regional Difference Analysis in China

WU Dian-Ting, SONG Jin-Ping, LIANG Jin-She, ZHANG Tong-Sheng

1. Department of Resources and Environmental Sciences, Beijing Normal University, Beijing 100875
• Received:2002-10-16 Revised:2002-12-17 Online:2003-07-20 Published:2003-07-20

Abstract: The study of regional difference and its change is one of the most important research topics in regional economics and geography. In this paper, we first discussed the relationship among different models used in the study of regional difference, and pointed out the limitations of Gini coefficient and other indicators in the use of describing regional inequity, combining with China's specific conditions; then we examined the peculiar function of Kuznetz ratio. By decomposing and calculating Kuznetz ratio, we find out the direct causes that bring about the changes of China's regional difference. The results show that the changing process of China's regional difference since the reform and opening up can be divided into four stages, that is, the first stage is from the year 1978 to 1983, the second stage from 1984 to 1990, the third stage from 1991 to 1995, and the fourth stage from 1996 to now. Each of these four stages shows different extrinsic characteristics and intrinsic factors of regional difference, which is mainly due to the contrast value of two factors, that is, the population proportion of low-income areas and the GDP proportion of high-income areas. The details are as follows:1) In the first stage, the population proportion of low-income provinces gradually declines and the income proportion of low-income provinces increases, and these two facts cause the general inequity decline a little.2) In the second stage, the general inequity increases a little, which is mainly due to the vibration of two factors, factor A is the variation of inequity coefficient caused by the relative change of low-income population, factor B is the variation of inequity coefficient caused by the relative change of high-income population;3) In the third stage, the general inequity increases rapidly, which is due to the increase of population proportion and income proportion of low-income provinces.4) In the fourth stage, the general inequity declines a little, comparing with the index of the third stage, which is the result of the obvious increase of population proportion and the obvious decrease of income proportion of low-income provinces.The results also show that China's regional inequity in the future may be lessened to some extent.Practice has proved that the indicator of Kuznetz ratio has a unique function in describing the regional difference, but simply using this method might not have a good result and we should pay attention to its application combining with other methods.

• F129.9