A Food Demand System Estimation for Uganda
AbstractThis article estimates a household demand system for Uganda from cross-sectional household survey data. More specifically, a 13 item two-stage demand system model is estimated for rural and urban households separately where the main second-stage is represented by a Quadratic Almost Ideal Demand System which accounts for socio-demographic household characteristics and censoring and focuses on food items. Elasticities are calculated for three household expenditure groups as well as for the aggregate. We find that food expenditures tend to be more elastic for poorer households than for richer ones. All foods are generally price inelastic and price elasticities tend to decrease with rising expenditure level. A number of substitutional and complementary relationships between food items are identified.
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Bibliographic InfoPaper provided by IIIS in its series The Institute for International Integration Studies Discussion Paper Series with number iiisdp396.
Length: 34 pages
Date of creation: Mar 2012
Date of revision:
Uganda; quadratic almost ideal demand system; elasticities;
Find related papers by JEL classification:
- O55 - Economic Development, Technological Change, and Growth - - Economywide Country Studies - - - Africa
- C31 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Cross-Sectional Models; Spatial Models; Treatment Effect Models; Quantile Regressions; Social Interaction Models
- C34 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Truncated and Censored Models; Switching Regression Models
This paper has been announced in the following NEP Reports:
- NEP-AFR-2012-05-15 (Africa)
- NEP-AGR-2012-05-15 (Agricultural Economics)
- NEP-ALL-2012-05-15 (All new papers)
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- Brian P. Poi, 2008. "Demand-system estimation: Update," Stata Journal, StataCorp LP, vol. 8(4), pages 554-556, December.
- Harald Tauchmann, 2005. "Efficiency of two-step estimators for censored systems of equations: Shonkwiler and Yen reconsidered," Applied Economics, Taylor & Francis Journals, vol. 37(4), pages 367-374.
- Murphy, Kevin M & Topel, Robert H, 1985.
"Estimation and Inference in Two-Step Econometric Models,"
Journal of Business & Economic Statistics,
American Statistical Association, vol. 3(4), pages 370-79, October.
- Murphy, Kevin M & Topel, Robert H, 2002. "Estimation and Inference in Two-Step Econometric Models," Journal of Business & Economic Statistics, American Statistical Association, vol. 20(1), pages 88-97, January.
- Bart Capéau & Stefan Dercon, 1998.
"Prices, Unit Values and Local Measurement Units in Rural Surveys: an Econometric Approach with an Application to Poverty Measurement in Ethiopia,"
Center for Economic Studies - Discussion papers
ces9818, Katholieke Universiteit Leuven, Centrum voor Economische Studiën.
- Bart Capéau & Stefan Dercon, 2006. "Prices, Unit Values and Local Measurement Units in Rural Surveys: an Econometric Approach with an Application to Poverty Measurement in Ethiopia," Journal of African Economies, Centre for the Study of African Economies (CSAE), vol. 15(2), pages 181-211, June.
- Bart Capéau & Stefan Dercon, 2004. "Prices, unit values and local measurement units in rural surveys: an econometric approach with an application to poverty measurement in Ethiopia," Public Economics Working Paper Series puvlmurs, Katholieke Universiteit Leuven, Centrum voor Economische Studiën, Working Group Public Economics.
- Deaton, Angus S & Muellbauer, John, 1980. "An Almost Ideal Demand System," American Economic Review, American Economic Association, vol. 70(3), pages 312-26, June.
- André Decoster & Frederic Vermeulen, 1998.
"Evaluation of the Empirical Performance of Two-Stage Budgeting AIDS, QUAIDS and Rotterdam Models Based on Weak Separability,"
Center for Economic Studies - Discussion papers
ces9807, Katholieke Universiteit Leuven, Centrum voor Economische Studiën.
- André Decoster & Frederic Vermeulen, 1998. "Evaluation of the empirical performance of two-stage budgeting AIDS, QUAIDS and Rotterdam models based on weak separability," Public Economics Working Paper Series ces9807, Katholieke Universiteit Leuven, Centrum voor Economische Studiën, Working Group Public Economics.
- Diansheng Dong & Brian W. Gould & Harry M. Kaiser, 2004. "Food Demand in Mexico: An Application of the Amemiya-Tobin Approach to the Estimation of a Censored Food System," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 86(4), pages 1094-1107.
- J. Scott Shonkwiler & Steven T. Yen, 1999. "Two-Step Estimation of a Censored System of Equations," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 81(4), pages 972-982.
- Todd Benson & Samuel Mugarura & Kelly Wanda, 2008. "Impacts in Uganda of rising global food prices: the role of diversified staples and limited price transmission," Agricultural Economics, International Association of Agricultural Economists, vol. 39(s1), pages 513-524, November.
- Blundell, Richard & Robin, Jean Marc, 1999.
"Estimation in Large and Disaggregated Demand Systems: An Estimator for Conditionally Linear Systems,"
Journal of Applied Econometrics,
John Wiley & Sons, Ltd., vol. 14(3), pages 209-32, May-June.
- R, Blundell & Jean-Marc Robin, 1997. "Estimation in Large and Dissagregated Demand Systems : An Estimator for Conditionally Linear Systems," Working Papers 97-08, Centre de Recherche en Economie et Statistique.
- J. A. L. Cranfield & James S. Eales & Thomas W. Hertel & Paul V. Preckel, 2003. "Model selection when estimating and predicting consumer demands using international, cross section data," Empirical Economics, Springer, vol. 28(2), pages 353-364, 04.
- Pollak, Robert A & Wales, Terence J, 1981. "Demographic Variables in Demand Analysis," Econometrica, Econometric Society, vol. 49(6), pages 1533-51, November.
- Abdulai, Awudu & Aubert, Dominique, 2004. "A cross-section analysis of household demand for food and nutrients in Tanzania," Agricultural Economics, Blackwell, vol. 31(1), pages 67-79, July.
- Alain Carpentier & Hervé Guyomard, 2001. "Unconditional Elasticities in Two-Stage Demand Systems: An Approximate Solution," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 83(1), pages 222-229.
- Teklu, T., 1996. "Food demand studies in Sub-Saharan Africa: a survey of empirical evidence," Food Policy, Elsevier, vol. 21(6), pages 479-496, December.
- Jonathan M. Nzuma & Rakhal Sarker, 2010. "An error corrected almost ideal demand system for major cereals in Kenya," Agricultural Economics, International Association of Agricultural Economists, vol. 41(1), pages 43-50, 01.
- Heien, Dale & Wessells, Cathy Roheim, 1990. "Demand Systems Estimation with Microdata: A Censored Regression Approach," Journal of Business & Economic Statistics, American Statistical Association, vol. 8(3), pages 365-71, July.
- Arne Henningsen & Jeff D. Hamann, . "systemfit: A Package for Estimating Systems of Simultaneous Equations in R," Journal of Statistical Software, American Statistical Association, vol. 23(i04).
- James Banks & Richard Blundell & Arthur Lewbel, 1997. "Quadratic Engel Curves And Consumer Demand," The Review of Economics and Statistics, MIT Press, vol. 79(4), pages 527-539, November.
- Boysen, Ole & Matthews, Alan, 2012. "The differentiated effects of food price spikes on poverty in Uganda," 123rd Seminar, February 23-24, 2012, Dublin, Ireland 122445, European Association of Agricultural Economists.
- Boysen, Ole, 2013. "High Food Prices and their Implications for Poverty in Uganda From Demand System Estimation to Simulation," 2013 Annual Meeting, August 4-6, 2013, Washington, D.C. 150700, Agricultural and Applied Economics Association.
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