Measuring Economic Inequalities (In French)

Patrick Moyes ()

Cahiers du GREThA (2007-2019) from Groupe de Recherche en Economie Théorique et Appliquée (GREThA)

Abstract: We give in this note an overview of the way income inequality is approached in economics.\r\nWe first recall the basic properties that any inequality index is required to possess and\r\nwe insist on the distinction between the indices of relative inequality and the indices of\r\nabsolute inequality. We present next the ethical approach to inequality measurement and\r\nwe derive the Atkinson-Kolm-Sen (AKS) and the Kolm-Pollak (KP) families of indices.\r\nThe search for a consensus among general classes of indices leads us to the criteria of\r\nrelative Lorenz and absolute Lorenz dominances. Finally we briefly discuss the properties\r\nof decomposablity that allow one to measure the contribution to overall income\r\ninequality of the inequality attached to a particular subgroup of the population or to a\r\nparticular income source.

Keywords: Inequality Indices; Minimal Properties for an Inequality Index; Lorenz Curves; \r\nEthical Inequality Indices; Decomposition of Inequality. (search for similar items in EconPapers)
JEL-codes: D30 D63 (search for similar items in EconPapers)
Date: 2009
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Persistent link: https://EconPapers.repec.org/RePEc:grt:wpegrt:2009-06

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