| 林平,郭继强,费舒澜.中国城乡综合基尼系数测算的一种新改进[J].数量经济技术经济研究,2013,30(11):108-124 |
| 中国城乡综合基尼系数测算的一种新改进 |
| A New Approach for Calculating China’s Overall Gini Coefficient |
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| DOI： |
| 中文关键词: 城乡综合基尼系数 子群分解 间接洛伦兹曲线加总 |
| 英文关键词: the Overall Gini Coefficient Subgroup Decomposition Aggregation of Indirect Lorenz Curves |
| 基金项目: |
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| 中文摘要: |
| 城乡综合基尼系数测算是在中国现有统计方式和数据可获得条件下的一个特殊问题，主要表现为如何在仅有城镇和农村各自的分组收入数据约束下更好地估算城乡综合基尼系数（或称城乡合一基尼系数、全国基尼系数）。针对包括城乡加权法和分层加权法等在内的子群分解法无法解决的城乡收入数据重叠难题，函数加总法通过城乡收入分布或密度函数加总形式予以化解，但既有的函数加总方法却又引发了对全国和组内最高收入的依赖问题。本文采取城乡间接洛伦兹曲线加总的形式规避了对两种最高收入的依赖，并以CHIPs2007数据为例对城乡综合基尼系数若干方法计算结果的有效性和稳健性进行了比较。此外，文章还在新改进方法的框架下进一步表达了基尼系数的城乡分解公式。 |
| 英文摘要: |
| The calculation of the overall Gini coefficient is a special problem under the current statistical methods and the availability of the data, the major aspect is how to precisely calculate the overall Gini coefficient (i.e., National Gini coefficient) when there are only separated group data of urban and rural. Compared with the subgroup decomposition approach—which can’t solve the problem caused by the overlap between urban and rural data, function aggregation approach solves this problem by aggregating the income distribution or density function of urban and rural. However, this approach relies on the maximum income of the country and each group. In this study, we solve this drawback by aggregating the Indirect Lorenz Curve of urban and rural. Meanwhile, we use CHIPs2007 data to compare the effectiveness and robustness of several methods that used to calculating the overall Gini coefficient. Moreover, this study shows the subgroup decomposition of the Gini coefficient in the frame of the new approach. |
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