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Sequential procedures for poverty gap dominance

机译:主导贫富差距的顺序程序

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摘要

Poverty evaluations differ from welfare evaluations in one significant aspect, the existence of a threshold or reference point, the poverty line. We build up normative evaluation models in which comparisons are made taking distances from this reference point rather than from the origin to be ethically relevant, by focussing upon poverty gaps and not incomes. When poverty lines differ for different groups in a socially heterogeneous population, choosing poverty gaps instead of incomes as the relevant indicator brings in normatively appealing classes of poverty indices not previously accommodated, for which poverty comparisons are implemented through sequential poverty gap curves (or poverty gap distributions) dominance. These conditions are logically related to those suggested by Atkinson and Bourguignon (Arrow and the foundations of the theory of economic policy, Macmillan, London, 1987) and Bourguignon (J Econom 42:67–80, 1989) for welfare comparisons. However, the proportion of poor individuals in the society and their average poverty gap play a role in our comparisons, though they do not in the existing poverty dominance criteria for heterogeneous populations.
机译:贫困评估与福利评估在一个重要方面不同,即阈值或参考点的存在,贫困线。我们建立了规范的评估模型,在该模型中,重点关注贫富差距而不是收入,从而与该参考点进行了比较,而不是从与道德相关的起点进行了比较。当社会异质人口中不同群体的贫困线不同时,选择贫困差距而不是收入作为相关指标,会带来以前没有提供的具有规范吸引力的贫困指数类别,为此通过顺序贫困差距曲线(或贫困差距)进行贫困比较分布)的主导地位。从逻辑上讲,这些条件与Atkinson和Bourguignon(箭头和经济政策理论的基础,Macmillan,伦敦,1987年)和Bourguignon(经济杂志42:67-80,1989年)提出的福利比较所建议的条件有关。但是,我们的比较中,贫困人口在社会中的比例及其平均贫困差距发挥了作用,尽管它们并没有在现有的针对异类人群的贫困主导标准中发挥作用。

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  • 来源
    《Social Choice and Welfare》 |2012年第3期|649-673|共25页
  • 作者

    Claudio Zoli; Peter J. Lambert;

  • 作者单位

    Dipartimento di Scienze Economiche Università di Verona Via dell’Artigliere 19 37129 Verona Italy;

    Department of Economics University of Oregon Eugene OR 97403-1285 USA;

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  • 正文语种 eng
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