It is not known to what extent welfare measures result from seasonal and geographical price differences rather than from differences in living standards across households. Using data from Rwanda in 1983, we show that the change in mean living standard indicators caused by local and seasonal price deflation is moderately significant at every quarter. By contrast, the differences in poverty measures caused by this deflation can be considerable, for chronic as well as transient or seasonal poverty indicators. Thus, poverty monitoring and anti-poverty targeting can be badly affected by inaccurate deflation of living standard data. Moreover, when measuring seasonal poverty, the deflation based on regional prices instead of local prices only partially corrects for spatial price dispersion. Using annual local prices instead of quarterly local prices only yields a partial deflation, which distorts the measure of poverty fluctuations across seasons and biases estimates of annual and chronic poverty.
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Paper provided by Instituto Valenciano de Investigaciones Económicas, S.A. (Ivie) in its series Working Papers. Serie AD with number
2005-11.
Find related papers by JEL classification: I32 - Health, Education, and Welfare - - Welfare and Poverty - - - Measurement and Analysis of Poverty O15 - Economic Development, Technological Change, and Growth - - Economic Development - - - Economic Development: Human Resources; Human Development; Income Distribution; Migration D31 - Microeconomics - - Distribution - - - Personal Income and Wealth Distribution
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Angus Deaton & Alessandro Tarozzi, 2000.
"Prices and poverty in India,"
Working Papers
213, Princeton University, Woodrow Wilson School of Public and International Affairs, Research Program in Development Studies..
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