东中西三大经济地带农村居民收入差距研究

Farmer Income Differentiation of Rural Residents in China's East,West and Mid-Area

采用基尼系数和泰尔指数及其分解方法研究了我国东中西三大经济地带农村居民收入差距问题。基本结论是:我国三大经济地带农村居民收入差距处在一个相对平均的阶段,但其差距有随时间变化而增大的趋势。基尼系数分解结果表明,工资性收入是导致基尼系数增大的最重要的因素,而家庭经营性收入则使基尼系数减小,财产和转移性收入对基尼系数影响不大。泰尔指数分解结果显示,东中西三大地带农村居民收入差距的组间贡献波幅不大,但组内贡献变化明显,三大地带内部差异是导致地区间农村居民收入差距扩大的主要原因。

The paper annalyzes rural residents＇income differentiation with Theil index and Gini index. The basic conclusion is that this income differentiation stays at a comparatively average periodI though in an incremental trend. The Gini index decomposition result shows that salary income is the most important factor causing Gini index rises, while farming income reduces Gini index. The result of Theil index decomposition shows that inter - group contribution rate is not great when income differentiation testing in these three areas , but inner - group contribution rate is obvious, so the inner differentiation of these is the main reason for the widened gap as to rural residents＇ income.