Distribution of welfare gains from GM cassava in Uganda across different population groups and market margins
AbstractThe conventionally used equilibrium displacement model (EDM) provides a convenient way to estimate the distribution of welfare gains from crop productivity growth across different population groups. However, it ignores the high market margin. Little research has been done on the potential bias in estimated welfare gains when the market margin is omitted. This study assesses ex ante how the welfare effects of genetically modified (GM) cassava in Uganda will be distributed across large-scale producers, small-scale producers and non-producers, and how much bias is embedded in the conventional EDM that ignores the market margin. The results indicate that welfare gains from GM cassava will be enjoyed by all three groups but most by large-scale cassava producers, and that the bias that results from ignoring the market margin is relatively small when looking at the benefits for the entire country, but more serious for the population groups regarded separately.
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Bibliographic InfoArticle provided by African Association of Agricultural Economists in its journal African Journal of Agricultural and Resource Economics.
Volume (Year): 06 (2011)
Issue (Month): 1 (March)
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equilibrium displacement model; subsistence producer; cassava; market margin; sensitivity analysis; Agricultural Finance; Financial Economics; D13; D31; D81; O33; Q11; Q16;
Find related papers by JEL classification:
- D13 - Microeconomics - - Household Behavior - - - Household Production and Intrahouse Allocation
- D31 - Microeconomics - - Distribution - - - Personal Income and Wealth Distribution
- D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty
- O33 - Economic Development, Technological Change, and Growth - - Technological Change; Research and Development; Intellectual Property Rights - - - Technological Change: Choices and Consequences; Diffusion Processes
- Q11 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Aggregate Supply and Demand Analysis; Prices
- Q16 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - R&D; Agricultural Technology; Biofuels; Agricultural Extension Services
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Gabre-Madhin, Eleni Z. & Haggblade, Steven, 2004. "Successes in African Agriculture: Results of an Expert Survey," World Development, Elsevier, vol. 32(5), pages 745-766, May.
- Zhao, Xueyan & Griffiths, William E. & Griffith, Garry R. & Mullen, John D., 2000. "Probability distributions for economic surplus changes: the case of technical change in the Australian wool industry," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 44(1), March.
- Polson, Rudulph A. & Spencer, Dunstan S. C., 1991. "The technology adoption process in subsistence agriculture: The case of cassava in Southwestern Nigeria," Agricultural Systems, Elsevier, vol. 36(1), pages 65-78.
- Price, Gregory K. & Lin, William W. & Falck-Zepeda, Jose Benjamin & Fernandez-Cornejo, Jorge, 2003. "Size And Distribution Of Market Benefits From Adopting Biotech Crops," Technical Bulletins 33562, United States Department of Agriculture, Economic Research Service.
- Kimenju, Simon Chege & De Groote, Hugo, 2005.
"Consumers' Willingness to Pay for Genetically Modified Foods in Kenya,"
2005 International Congress, August 23-27, 2005, Copenhagen, Denmark
24504, European Association of Agricultural Economists.
- Simon Chege Kimenju & Hugo De Groote, 2008. "Consumer willingness to pay for genetically modified food in Kenya," Agricultural Economics, International Association of Agricultural Economists, vol. 38(1), pages 35-46, 01.
- Deaton, A., 1988.
"Quality, Quantity, And Spatial Variation Of Price,"
30, World Bank - Living Standards Measurement.
- Kebede, Yohannes & Gunjal, Kisan & Coffin, Garth, 1990. "Adoption of new technologies in Ethiopian agriculture: The case of Tegulet-Bulga district Shoa province," Agricultural Economics, Blackwell, vol. 4(1), pages 27-43, April.
- Lence, Sergio H. & Hayes, Dermot J., 2005.
"Genetically Modified Crops: Their Market and Welfare Impacts,"
Staff General Research Papers
12435, Iowa State University, Department of Economics.
- Sergio H. Lence & Dermot J. Hayes, 2005. "Genetically Modified Crops: Their Market and Welfare Impacts," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 87(4), pages 931-950.
- Vermeulen, Hester & Kirsten, Johann F. & Doyer, Ockert T. & Schonfeldt, H.C., 2005. "Attitudes and acceptance of South African urban consumers towards genetically modified white maize," Agrekon, Agricultural Economics Association of South Africa (AEASA), vol. 44(1), March.
- Qaim, Matin, 2001. "A prospective evaluation of biotechnology in semi-subsistence agriculture," Agricultural Economics, Blackwell, vol. 25(2-3), pages 165-175, September.
- Nigel Key & Elisabeth Sadoulet & Alain De Janvry, 2000. "Transactions Costs and Agricultural Household Supply Response," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 82(2), pages 245-259.
- Sathirathai, Surakiart & Siamwalla, Ammar, 1987. "GATT Law, Agricultural Trade, and Developing Countries: Lessons from Two Case Studies," World Bank Economic Review, World Bank Group, vol. 1(4), pages 595-618, September.
- George C. Davis & Maria Cristina Espinoza, 1998. "A Unified Approach to Sensitivity Analysis in Equilibrium Displacement Models," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 80(4), pages 868-879.
- Johnson, D. Demcey & Lin, William & Vocke, Gary, 2005. "Economic and welfare impacts of commercializing a herbicide-tolerant, biotech wheat," Food Policy, Elsevier, vol. 30(2), pages 162-184, April.
- Takeshima, Hiroyuki, 2009. "Sensitivity of welfare effects estimated by equilibrium displacement model: A biological productivity growth for semisubsistence crops in Sub-Sahara African market with high transaction costs," IFPRI discussion papers 936, International Food Policy Research Institute (IFPRI).
- Smale, Melinda & Zambrano, Patricia & Falck-Zepeda, José & Gruère, Guillaume, 2006. "Parables: applied economics literature about the impact of genetically engineered crop varieties in developing economies," EPTD discussion papers 158, International Food Policy Research Institute (IFPRI).
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