关键词: 排放差异, 基尼系数, 不平等性, Theil分解, emissions difference, Gini coefficient, inequality, Theil decomposition

Abstract: Abstract:Using the classical methods of inequality measurement, this paper calculated the inequality in regional income and CO2 emissions from 1990 to 2011. During this period, China’s regional distribution of CO2 emissions is more inequal than that of income, but the degree of these two inequalities are gradually reducing. Through the quasi-Gini coefficient, the relationship between income and CO2 emissions is set up, from which we found that by the rank of per capita GDP, regional distribution of CO2 emissions per capita is more fair not only than its own distribution,but also than the income distribution.This concludes that hign income is not always correspongding with high emissions—the main reason may be the difference in regional carbon reductin technology,the carbon intensity as well;However,grouped by income,Theil index and its decomposition shows differently: the high income group’s contribution to the GDP and CO2 per capita distribution is the largest,and the second high income group’s contribution to the carbon intensity distribution is the highest,so in order to reduce reginoal carbon distribution inequality, it not only needs to narrow regional economic development gap,but also depends on regional emissions reduction technology exchanges and coorperation.