Normative Choices and Tradeoffs when Measuring Poverty over Time
This paper examines the aggregation of an indicator of wellbeing over time and across people to measure poverty. We characterise the general form of an intertemporal poverty measure under mild normative principles and show that it must embody an unambiguous ordering of possible trajectories of an individualÕs wellbeing. We motivate further normative principles and examine their consequences for the form of the measure, showing that some measures suggested in the literature are not consistent with these principles. We discuss additional stronger properties that may be argued to be desirable for an intertemporal or chronic poverty measure. We identify compatibilities and tradeoffs among certain of these properties. For example, a poverty measure cannot simultaneously capture chronicity of poverty and sensitivity to fluctuations. We argue that a poverty analyst should choose among these properties according to context and the particular conception of poverty she seeks to measure.
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- Joan R. Rodgers & John L. Rodgers, 1993. "Chronic Poverty in the United States," Journal of Human Resources, University of Wisconsin Press, vol. 28(1), pages 25-54.
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"Intertemporal Poverty Measurement: Tradeoffs and Policy Options,"
Economics Series Working Papers
CSAE WPS/2008-21, University of Oxford, Department of Economics.
- Catherine Porter & Natalie Na¨iri Quinn, 2008. "Intertemporal Poverty Measurement: Tradeoffs and Policy Options," CSAE Working Paper Series 2008-21, Centre for the Study of African Economies, University of Oxford.
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"Measuring poverty accounting for time,"
1005, Universidade de Vigo, Departamento de Economía Aplicada.
- Sen, Amartya K, 1976. "Poverty: An Ordinal Approach to Measurement," Econometrica, Econometric Society, vol. 44(2), pages 219-31, March.
- Mary Jo Bane & David T. Ellwood, 1986. "Slipping into and out of Poverty: The Dynamics of Spells," Journal of Human Resources, University of Wisconsin Press, vol. 21(1), pages 1-23.
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