Poverty has Declined, but What about the Burden of Non-Extreme Poverty? Generalized Dominance Criteria for Convex Subsets within the Poverty Domain

Florent Bresson

A chapter in Economic Well-Being and Inequality: Papers from the Fifth ECINEQ Meeting, 2014, vol. 22, pp 147-184 from Emerald Group Publishing Limited

Abstract: This paper deals with poverty decompositions into subgroups defined with respect to intervals of income and the robustness of comparisons of the absolute contribution of such groups to poverty. For instance, world poverty estimates by the World Bank often distinguish between the extreme poor whose incomes are lower than $1.25 a day (in PPP terms) and the other poor with incomes between $1.25 and $2.5 a day. Existing dominance conditions can tell whether overall poverty and extreme poverty have declined in a robust manner when comparing countries at two points of time, but they cannot say anything for the contribution of the non-extreme poor to overall poverty. In the present paper we propose stochastic generalized dominance criteria to perform robust poverty ordering when the focus is placed on some interval of the poverty domain. Using generated data based on grouped data from World Bank’s PovcalNet tool, the paper finally investigates whether the robust decline of extreme poverty around the world during the last decades was also accompanied by a decline of the contribution of non-extreme poverty.

Keywords: Poverty comparisons; stochastic dominance; world poverty; non-extreme poverty; poverty decompositions; D63; I3 (search for similar items in EconPapers)
Date: 2014
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Working Paper: Poverty has Declined, but What about the Burden of Non-Extreme Poverty? Generalized Dominance Criteria for Convex Subsets within the Poverty Domain (2014)
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Persistent link: https://EconPapers.repec.org/RePEc:eme:reinzz:s1049-258520140000022004

DOI: 10.1108/S1049-258520140000022004

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