中国总体基尼系数的变化趋势——基于2000～2009年数据的全国人口细分算法

文章以2000～2009年的统计数据为基础,按照同时体现地区、城乡和贫富三大差距的要求,对全国的城乡人口进行组群细分,以尽可能地降低组间重叠和组内差距等因素对计算结果带来的影响。按人均收入高低对细分后得到的居民小组数据进行城乡混合排序,利用面积法近似地计算出中国总体基尼系数。结果显示,中国总体基尼系数已处于较高水平,并在十五期间呈增大趋势,但进入十一五后逐渐平稳。随着城镇化的快速推进,全国城镇内部的收入差距逐渐成为对基尼系数贡献最大的因素。

The Trend of China's Gini Coefficient: A Calculation by Subdividing People Groups of 2000-2009's National Statistic Data

To reduce the error factors on calculating China's Gini Coefficient,this paper first subdivides people(data of 2000-2009)into multiple groups according to 3 gaps,i.e.interregional,urban-rural and wealth,then sorts the groups of urban and rural according to each income level.The area method is used to calculate the Gini Coefficient.The finding shows that China' Gini Coefficient is at a high level.It became bigger during the 10th Five-year Plan period but kept stable during the 11th Five-year Plan period.Unde...