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The social welfare implications, decomposability, and geometry of the Sen family of poverty indices

Kuan Xu and Lars Osberg

Canadian Journal of Economics/Revue canadienne d'économique, 2002, vol. 35, issue 1, 138-152

Abstract: In this paper, we propose a unified framework for the Sen indices of poverty intensity that shows an explicit connection between the indices and the common underlying social evaluation function. We also identify the common multiplicative decomposition of the indices that allows simple and similar geometric interpretations and easy numerical computation. JEL Classification: C000, H000, O150 Implications en termes de bien‐être collectif, décomposabilité et géométrie de la famille d’indices de pauvretéà la Sen. Dans ce mémoire, les auteurs proposent un cadre d’analyse intégré des indices d’intensité de pauvretéà la Sen qui souligne la relation explicite entre ces indices et la fonction sociale d’évaluation commune qui les soustend. Les auteurs identifient aussi la décomposition multiplicative commune de ces indices qui permet d’en donner des interprétations géométriques simples et idoines et de faire des calculs numériques faciles.

Date: 2002
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Citations: View citations in EconPapers (15)

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https://doi.org/10.1111/1540-5982.00124

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