Decomposing Poverty Changes into Vertical and Horizontal Components
AbstractVariations in aggregate poverty indices can be due to differences in average poverty intensity, to changes in the welfare distances between those poor of initially unequal welfare status, and/or to emerging disparities in welfare among those poor of initially similar welfare status. This note uses a general cost-of-inequality approach that decomposes the total change in poverty into a sum of indices of each of these three components. This decomposition can serve inter alia to integrate horizontal and vertical equity criteria in the poverty alleviation assessment of social and economic programs. The use of these measures in briefly illustrated using Tunisian data.
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Bibliographic InfoPaper provided by CIRPEE in its series Cahiers de recherche with number 0312.
Date of creation: 2003
Date of revision:
Poverty; Vertical Equity; Horizontal Equity; Targeting; Tunisia;
Other versions of this item:
- Sami Bibi & Jean-Yves Duclos, 2005. "Decomposing poverty changes into vertical and horizontal components," Bulletin of Economic Research, Wiley Blackwell, vol. 57(2), pages 205-215, 04.
- D12 - Microeconomics - - Household Behavior - - - Consumer Economics: Empirical Analysis
- D63 - Microeconomics - - Welfare Economics - - - Equity, Justice, Inequality, and Other Normative Criteria and Measurement
- H53 - Public Economics - - National Government Expenditures and Related Policies - - - Government Expenditures and Welfare Programs
- I32 - Health, Education, and Welfare - - Welfare, Well-Being, and Poverty - - - Measurement and Analysis of Poverty
- I38 - Health, Education, and Welfare - - Welfare, Well-Being, and Poverty - - - Government Programs; Provision and Effects of Welfare Programs
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