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New perspectives on a more-or-less familiar poverty index, with extensions

Working Paper 2009-116


A particular scale-invariant index of poverty is subjected to careful analysis. This leads to a new perspective, not seen before, on the family of subgroup-consistent and scale-invariant poverty indices. Parametric families of new poverty indices are presented which offer the analyst a degree of flexibility in the choice of transfer sensitivity and distribution sensitivity which has not been available before now.

Authors: Kristof Bosmans, Lucio Esposito, Peter Lambert.

Keywords: Poverty measurement, Distributional properties.
JEL: D31, D63.