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Estimation of Lorenz curves based on dummy variable regression

机译:基于虚拟变量回归的Lorenz曲线估计

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摘要

We propose a new estimation method of the Lorenz curve based on dummy variable regression for granting clear economic connotations to parameters in the estimation of the Lorenz curve. The dummy variable regression model of the Lorenz curve is established by introducing dummy variables to group data about income level. On this basis, it is proved that the regression function is endowed with the convexity that the Lorenz curve should have. To verify the effectiveness of the new method, empirical study is carried out taking the income data of urban and rural residents in the Chinese Household Income Project Survey (CHIP) database as examples. In the empirical study, the proposed model is compared with several existing classical parameter models. The results indicate that the slope parameter of the model represents the cumulative income-population resilience of corresponding residents, and reflects the income structure of residents to some extent. Meanwhile, compared with classical parameter models, the newly proposed method has advantages of higher fitting precision and stronger adaptability. (C) 2019 Elsevier B.V. All rights reserved.
机译:我们提出了一种基于虚拟可变回归的Lorenz曲线的新估计方法,以便在估计Lorenz曲线的参数中给予明显的经济内涵。通过将虚拟变量引入有关收入水平的组数据来建立Lorenz曲线的虚拟变量回归模型。在此基础上,证明了回归函数赋予洛伦兹曲线应该具有的凸起。为了验证新方法的有效性,实证研究采用中国家庭收入项目调查(芯片)数据库中城乡居民的收入数据作为示例。在实证研究中,将所提出的模型与几个现有的经典参数模型进行比较。结果表明,该模型的斜率参数代表了相应居民的累积收入群体抵御能力,并在一定程度上反映了居民的收入结构。同时,与经典参数模型相比,新的方法具有更高的拟合精度和更强的适应性的优点。 (c)2019 Elsevier B.v.保留所有权利。

著录项

  • 来源
    《Economics letters》 |2019年第4期|69-75|共7页
  • 作者单位

    Zhejiang Univ Finance & Econ Sch Econ Hangzhou 310018 Zhejiang Peoples R China|Zhejiang Univ Finance & Econ Ctr Res Regulat & Policy Hangzhou 310018 Zhejiang Peoples R China|Zhejiang Univ Finance & Econ Ctr Reg Econ & Integrated Dev Hangzhou 310018 Zhejiang Peoples R China;

    Zhejiang Univ Finance & Econ Sch Econ Hangzhou 310018 Zhejiang Peoples R China;

    Zhejiang Univ Finance & Econ Sch Econ Hangzhou 310018 Zhejiang Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Income distribution; Lorenz curve; Dummy variable regression;

    机译:收入分配;Lorenz曲线;虚拟变量回归;

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