The Social Welfare Implications, Decomposability, and Geometry of the Sen Family of Poverty Indices

Kuan Xu () and Lars Osberg ()

Department of Economics at Dalhousie University working papers archive from Dalhousie, Department of Economics

Abstract: This paper proposes a unified framework for the Sen indices of poverty intensity, which shows an explicit connection between the indices and the common underlying social evaluation function. This paper also identifies the common multiplicative decomposition of the indices that allows simple and similar geometric interpretations, easy numerical computation, and common subgroup decompositions. These results are useful to policy analysis.

Keywords: Poverty Intensity; Poverty Rate; Poverty Gap; Sugroup Decomposition; Equally-Distributed-Equivalent-Income, Social Evaluation Function; Gini Index (search for similar items in EconPapers)
JEL-codes: E31 E52 (search for similar items in EconPapers)
Date: 2000-10-27
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Journal Article: The social welfare implications, decomposability, and geometry of the Sen family of poverty indices (2002)
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Persistent link: http://EconPapers.repec.org/RePEc:dal:wparch:sendeco

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