Distribution of welfare gains from GM cassava in Uganda across different population groups and market margins
The 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.
Volume (Year): 06 (2011)
Issue (Month): 1 (March)
|Contact details of provider:|| Postal: c/o FORMAT, 5th Floor, Muthaiga Mini Market, Limuru Road, P.O. Box 79 - 00621 Village Market, Nairobi, Kenya|
Phone: 254 20 6752866
Web page: http://www.aaae-africa.org/afjare
More information through EDIRC
References listed on IDEAS
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.:
- Ritva Reinikka & Paul Collier, 2001. "Uganda's Recovery : The Role of Farms, Firms, and Government," World Bank Publications, The World Bank, number 13850, August.
- Deaton, Angus, 1988.
"Quality, Quantity, and Spatial Variation of Price,"
American Economic Review,
American Economic Association, vol. 78(3), pages 418-430, June.
- Deaton, A., 1988. "Quality, Quantity, And Spatial Variation Of Price," Papers 30, World Bank - Living Standards Measurement.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- Price, Gregory K. & Lin, William W. & Falck-Zepeda & Fernandez-Cornejo, Jorge, 2003. "Size and Distribution of Market Benefits from Adopting Biotech Crops," Technical Bulletins 184320, United States Department of Agriculture, Economic Research Service.
- 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.
- Qaim, Matin, 2001. "A prospective evaluation of biotechnology in semi-subsistence agriculture," Agricultural Economics, Blackwell, vol. 25(2-3), pages 165-175, September.
- 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.
- 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).
- 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.
- 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.
- Qaim, Matin, 2001. "A prospective evaluation of biotechnology in semi -subsistence agriculture," Agricultural Economics of Agricultural Economists, International Association of Agricultural Economists, vol. 25(2-3), September.
- 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).
- 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.
- 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.
- 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.
- Lence, Sergio H. & Hayes, Dermot J., 2005. "Genetically Modified Crops: Their Market and Welfare Impacts," Staff General Research Papers Archive 12435, Iowa State University, Department of Economics.
- Kebede, Yohannes & Gunjal, Kisan & Coffin, Garth, 1990. "Adoption of New Technologies in Ethiopian Agriculture: The Case of Tegulet-Bulga District, Shoa Province," Agricultural Economics of Agricultural Economists, International Association of Agricultural Economists, vol. 4(1), April. Full references (including those not matched with items on IDEAS)
When requesting a correction, please mention this item's handle: RePEc:ags:afjare:156959. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (AgEcon Search)
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.