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我国城市贫困地区差异之研究 被引量:13

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摘要 本文结合Shorrocks和Wa(n2004)的数据产生法与Shorrock(s1999)的夏普里值分解法,提出了一个半参数形式的贫困分解法。与流行的Datt-Ravallio(n1992)分解法相比,该方法具有以下优点:产生误设误差的概率较小,无需事先设定函数形式,能更好地拟合真实的洛仑兹(Lorenz)曲线,并系统地解决了残差项的问题。我们运用这一方法将中国城市贫困的地区差异分解为3个组成部分。这些部分可以分别归因于各地区之间在平均名义收入水平、收入不平等及贫困线3方面的差异。分解结果表明贫困率主要取决于平均收入水平,但也在很大程度上受到收入分配的影响。分解结果具有一定的地域特征,但地理位置不应成为对省进行分组时的唯一依据。
作者 张莹 万广华
出处 《管理世界》 CSSCI 北大核心 2006年第10期50-56,共7页 Journal of Management World
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