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运用经典的不平等性测度方法计算了1990-2011年间我国收入差距和CO2排放分布差异性,发现:22年间,我国地区间CO2排放分布比GDP分布更为不平等,但两种不平等性程度都在逐渐降低;通过拟基尼系数建立起CO2排放分布与GDP分布之间的联系,发现:以人均GDP排序的省际间人均CO2排放分布较其自身分布更为公平,且比GDP分布更平等,这意味着高排放与高收入并不总是一一对应的,主要原因在于地区间以碳排放强度为代表的减排技术水平存在较大差异;然而,以收入分组进行Theil指数分解的结果显示:高收入组对GDP分布和人均CO2排放分布的贡献较大,而中高收入组对碳排放强度分布差异性的贡献最高,降低地区间碳排放分布的不平等性不仅需要缩小地区间的发展差距,同时更依赖于地区间节能减排技术的交流与合作。
Using the classic method of measuring inequality, we calculated the difference of income distribution and CO2 emissions in China between 1990 and 2011 and found that in the past 22 years, the distribution of CO2 emissions in our country is more unequal than that of GDP, but the two kinds of inequality Are gradually decreasing; the relationship between the distribution of CO2 emissions and GDP distribution is established through the pseudo-Gini coefficient and found that provincial per capita CO2 emissions per capita distribution is more equitable than itself and more equal than the GDP distribution , Which means that high-emission and high-income do not always correspond one by one, mainly due to the large differences in the level of emission reduction technologies represented by the intensity of carbon emissions in different regions; however, the result of decomposing Theil index by income group It shows that the high-income group contributes more to the distribution of GDP and the per capita emission of CO2, while the middle-high income group contributes the most to the difference of carbon emission intensity distribution. Reducing the inequality of inter-region carbon emission distribution not only needs to narrow the interdepartmental development But also depend more on the exchange and cooperation of energy saving and emission reduction technologies among regions.