中国城乡综合基尼系数测算的一种新改进-基于间接洛伦茨曲线加总的视角  

A New Approach for Calculating China's Overall Gini Coefficient

作　　者：林平[1,2] 郭继强[1,2] 费舒澜[1,2] 

机构地区：[1]浙江大学公共管理学院 [2]浙江大学劳动保障与社会政策研究中心

出　　处：《数量经济技术经济研究》2013年第11期108-124,共17页Journal of Quantitative & Technological Economics

基　　金：国家社会科学基金重大招标项目“收入分配制度改革的总体框架与具体路径研究”(11&ZD013);国家社科基金重点项目“'十二五'时期调整国民收入分配结构研究”(10AZD003);国家社科基金项目“城乡一体化进程中扩大就业的理论和对策研究”(09BJL019);浙江省社科基金重点课题“我国城乡收入差距估算的矫正”(13JDLB01Z);国家自科基金重点项目“城乡劳动力市场整合机理与实现机制研究”(70933001);浙江大学“985工程”社会管理与公共政策研究项目资助

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加以估算。既有的函数加总法在化解子群分解法无法克服的城乡收入数据重叠难题的同时,却又引发了对全国和组内最高收入的依赖问题。本文提出用城乡间接洛伦茨曲线加总形式予以改进,并实证了其有效性和稳健性。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。The calculation of the overall Gini coefficient is a special problem under the current statistical methods and the availability of the data, and the major aspect is how to precisely calculate the overall Gini coefficient when there are only separated group data of urban and rural. Compared with the subgroup decomposi- tion 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 ap- proach 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 ru- ral. Meanwhile, we use CHIPs2007 data to compare the effectiveness and robust- ness of several methods that used to calculating the overall Gini coefficient. Moreo- ver, this study shows the subgroup decomposition of the Gini coefficient in the frame of the new approach.

关 键 词：城乡综合基尼系数 子群分解 间接洛伦茨曲线加总 

分 类 号：F126.2[经济管理—世界经济]