| 中国农村居民收入区域差异变化的因子解析 |
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| 引用本文： | 刘慧.中国农村居民收入区域差异变化的因子解析[J].地理学报,2008,63(8):799-806. |
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| 作者姓名： | 刘慧 |
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| 作者单位： | 中国科学院地理科学与资源研究所,北京,100101 |
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| 基金项目： | 科技部科技基础条件平台建设计划地球系统科学共享网
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中国科学院知识创新工程重要方向性项目
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| 摘 要： | 在GINI系数因子分解的基础上．提出了测度区域差异变化影响因子贡献来源的分解方法．将影响因子对区域差异变化的贡献分解为因子的结构性贡献和集中性贡献两种类型。对1993-2005年中国农村居民区域收入差异因子分解的实证研究表明工资性收入是影响农村收入差距格局最重要的因素．但对农村收入差距变化的影响并不明显。相反．近年来工资性收入集中度的不断下降超过了结构性增加对区域差异扩大的贡献．二者共同作用促进了农村区域差异的缩小。家庭经营性收入仍然是农村居民最重要的收入来源．但对收入差距的影响越来越小．且结构性和集中性对区域差异的贡献都在下降。财产性收入和转移性收入对收入差距格局的贡献虽然不大．但对收入差异扩大的贡献不断增加．已成为影响农村区域差异变化的重要因素。财产性收入贡献的增加主要来源于结构性贡献．集中性变化影响的趋势并不明显．而转移性收入贡献的增加除结构性增加影响之外．集中性下降的影响同样显著。最后提出了相应的政策建议。
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| 关 键 词： | 农村区域差异 因子分解 政策 中国 |
| 收稿时间： | 2007-09-27 |
| 修稿时间： | 2008-05-14 |
Factor Decomposition of Rural Regional Income Inequality Changes in China |
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| LIU Hui.Factor Decomposition of Rural Regional Income Inequality Changes in China[J].Acta Geographica Sinica,2008,63(8):799-806. |
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| Authors: | LIU Hui |
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| Institution: | Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China |
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| Abstract: | This paper focuses on the changes of rural regional income inequality and attempts to decompose them into different component factors based on Gini index. A new method is proposed to decompose the influence of each factor on inequality changes into its structure effects and its real inequality effects. In order to explore the factors behind the changes in rural income inequality in China, the overall rural income inequality is decomposed into contributions by different income sources: wages, household operations, properties, and transfers. This analysis is only for the period of 1993-2005 due to a serious data difference before 1993. Application of the method to China's rural regional inequality in the period 1993-2005 reveals that household operations still represents the dominant source of rural income although its influence on rural inequality is decreasing. In recent years, with the decline of household operation concentration index and its percentage share, it had positive effects in reducing the total regional inequality. Although wage income only accounts for some 26%-40% of the total disposable income, its contribution to the overall income inequality ranges from 43% to 50%. This implies that the wage income played the most important role in China's rural regional income inequality. However, for the changes of rural inequality, the contribution percentage of the wage component did not display any upward trend although its absolute share in the total income increased straightly. There is no strong evidence to show that wage income enlarge rural regional income inequality. On contrast, regional concentration in wage income did help reduce total regional income inequality since the mid-1990s. The contribution of wages income in raising regional inequality mainly comes from income share increase. These increases are a direct consequence of development process of urbanization and industrialization. In the future, as long as the concentration decline effects continue to exceed the share increase effect, wage must contain positive effects in reducing overall income inequality. Thus, to promote industrialization and urbanization in less developed areas and encourage farmers to gain more wages from local enterprises and outgoing employment would be one of the important approaches in reducing rural regional inequality.In recent five years, the role played by properties and transfers in rural income inequality increased fast and steadily. However, these two components have different influence manner. The increasing contribution from properties is mainly due to the increase of its share. As to the transfer income influence, the increase of its share enlarged rural income inequality, but the evident decline of its concentration reduced regional inequality. Therefore, more financial transfer and social services from the central government to less developed areas would be more and more effective in tackling rural regional inequality in China. |
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| Keywords: | rural inequality decomposition policy China |
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