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Prices, local measurement units and subsistence consumption in rural surveys: An econometric approach with an application to Ethiopia

  • Bart Capéau
  • Stefan Dercon

For many research problems in developing countries, some information on prices faced by households is required for the analysis, but these prices are not readily available from household surveys, nor is it straightforward to observe them, especially if subsistence consumption is a substantial part of consumption. Furthermore, quantities consumed and produced are often in local units presenting further problems for the analysis. Building on Deaton’s (1987) seminal work, we provide an econometric approach to estimate prices and quantity conversion factors from household expenditure data.. We use panel data from rural Ethiopia to illustrate the approach and to investigate the potential quality bias in the estimation of the prices. In an application we show that the conclusions about poverty changes over time are significantly affected by using less appropriate strategies to convert local units and to value subsistence consumption.

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Paper provided by Centre for the Study of African Economies, University of Oxford in its series CSAE Working Paper Series with number 1998-10.

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Date of creation: 1998
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Handle: RePEc:csa:wpaper:1998-10
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  1. Davidson, Russell & MacKinnon, James G., 1993. "Estimation and Inference in Econometrics," OUP Catalogue, Oxford University Press, number 9780195060119, July.
  2. Deaton, A., 1990. "Price Elasticities From Surveys Data: Extensions And Indonesian Results," Papers 69, World Bank - Living Standards Measurement.
  3. Deaton, Angus, 1988. "Quality, Quantity, and Spatial Variation of Price," American Economic Review, American Economic Association, vol. 78(3), pages 418-30, June.
  4. Serge Lambert & Thierry Magnac, 1997. "Implicit Prices and Recursivity of Agricultural Household's Decisions," Working Papers 97-31, Centre de Recherche en Economie et Statistique.
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