An aspect of variable population poverty comparisons
This paper demonstrates that the property of Replication Invariance, generally considered to be an innocuous requirement for the extension of fixed-population poverty comparisons to variable-population contexts, is incompatible with other plausible variable- and fixed-population axioms. This fact raises questions about what constitutes an appropriate headcount assessment of poverty, in terms of whether one should focus on the proportion, or the absolute numbers, of the population in poverty. This observation, in turn, has important implications for tracking poverty and setting targets for its reduction or elimination.
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References listed on IDEAS
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- Chakravarty, Satya R. & Kanbur, Ravi & Mukherjee, Diganta, 2002.
"Population Growth and Poverty Measurement,"
127303, Cornell University, Department of Applied Economics and Management.
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"Premature Mortality And Poverty Measurement,"
127197, Cornell University, Department of Applied Economics and Management.
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- Sen, Amartya K, 1976. "Poverty: An Ordinal Approach to Measurement," Econometrica, Econometric Society, vol. 44(2), pages 219-31, March.
- Kundu, Amitabh & Smith, Tony E, 1983. "An Impossibility Theorem on Poverty Indices," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 24(2), pages 423-34, June.
- Donaldson, David & Weymark, John A, 1986. "Properties of Fixed-Population Poverty Indices," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 27(3), pages 667-88, October.
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- Julia Paxton, 2003. "A poverty outreach index and its application to microfinance," Economics Bulletin, AccessEcon, vol. 9(2), pages 1-10.
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