我国区际收入差距问题分析——基于购买力平价理论

An Analysis of Regional Income Gap in China Based on Purchasing Power Parity Theory

利用购买力平价的计算方法,按照《中国统计年鉴》中计算消费价格指数时对商品和劳务的分类,选取了75种代表性商品,并查找了这些商品在我国31个省份2002—2010年的价格。以北京为基准地区,计算得出各地区的人民币购买力指数,用以修正各地区的区际收入,剔除价格差异的影响,进行了实际区际收入差距的比较。研究结果显示,剔除价格影响后,我国实际区际收入的差距比按照统计年鉴所计算出来的差距要小。与此同时,到2010年为止,修正前后的区际收入差距逐年扩大的趋势依然存在。

Using the calculation method of purchasing power parity （PPP）, according to the classification of goods and services which are used to calculate CPI in 《China statistical yearbook》, this paper selects 75 kinds of representative products and investigates the prices （2002--2010） of these goods in China＇s 31 provinces. Based on Beijing area, it calculates the regional currency purchasing power index, in order to correct the regional income, eliminate the influence of price difference and compare the actual regional income gap. The research result shows that, with the price influence excluded, China＇s actual regional income gap ratio is smaller than the gap calculated in the statistical yearbook. However, until 2010, the trend of interregional income before and after the amendment is widening year by year in China.