Economywide impacts of climate change on agriculture in Sub-Saharan Africa
Two possible adaptation scenarios to climate change for Sub-Saharan Africa are analyzed under the SRES B2 scenario. The first scenario doubles the irrigated area in Sub-Saharan Africa by 2050, compared to the baseline, but keeps total crop area constant. The second scenario increases both rainfed and irrigated crop yields by 25% for all Sub-Saharan African countries. The two adaptation scenarios are analyzed with IMPACT, a partial equilibrium agricultural sector model combined with a water simulation module, and with GTAP-W, a general equilibrium model including water resources. The methodology combines the advantages of a partial equilibrium approach, which considers detailed water-agriculture linkages, with a general equilibrium approach, which takes into account linkages between agriculture and nonagricultural sectors and includes a full treatment of factor markets. The efficacy of the two scenarios as adaptation measures to cope with climate change is discussed. Due to the limited initial irrigated area in the region, an increase in agricultural productivity achieves better outcomes than an expansion of irrigated area. Even though Sub-Saharan Africa is not a key contributor to global food production (rainfed, irrigated or total), both scenarios help lower world food prices, stimulating national and international food markets.
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- McKibbin, W.J. & Wilcoxen, P.J., 1995.
"The Theoretical and Empirical Structure of the G-Cubed Model,"
118, Brookings Institution - Working Papers.
- McKibbin, Warwick J. & Wilcoxen, Peter J., 1998. "The theoretical and empirical structure of the G-Cubed model," Economic Modelling, Elsevier, vol. 16(1), pages 123-148, January.
- W. J. McKibbin & P. J. Wilcoxen, . "The Theoretical and Empirical Structure of the G-Cubed Model," Discussion Papers 118, Brookings Institution International Economics.
- Alvaro Calzadilla & Katrin Rehdanz & Richard S.J. Tol, 2008.
"Water Scarcity And The Impact Of Improved Irrigation Management: A Cge Analysis,"
FNU-160, Research unit Sustainability and Global Change, Hamburg University, revised Apr 2008.
- Alvaro Calzadilla & Katrin Rehdanz & Richard S.J. Tol, 2008. "Water scarcity and the impact of improved irrigation management: A CGE analysis," Kiel Working Papers 1436, Kiel Institute for the World Economy.
- Molden, David, 2007. "Water for food, water for life: a comprehensive assessment of water management in agriculture: summary. In Arabic," IWMI Books, Reports H041261, International Water Management Institute.
- Smith, Lisa C. & Haddad, Lawrence James, 2000. "Overcoming child malnutrition in developing countries: past achievements and future choices," 2020 vision discussion papers 30, International Food Policy Research Institute (IFPRI).
- Paavola, Jouni & Adger, W. Neil, 2006. "Fair adaptation to climate change," Ecological Economics, Elsevier, vol. 56(4), pages 594-609, April.
- Michael Johnson & Peter Hazell & Ashok Gulati, 2003. "The Role of Intermediate Factor Markets in Asia's Green Revolution: Lessons for Africa?," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 85(5), pages 1211-1216.
- Scott McDonald & Sherman Robinson & Karen Thierfelder, 2005. "A SAM Based Global CGE Model using GTAP Data January 2005," Working Papers 2005001, The University of Sheffield, Department of Economics, revised Jan 2005.
- Hussain, Intizar & Hanjra, Munir, . "Irrigation and poverty alleviation: review of the empirical evidence," Papers published in Journals (Open Access) h034483, International Water Management Institute.
- Inocencio, Arlene & Kikuchi, Masao & Tonosaki, Manabu & Maruyama, Atsushi & Merrey, Douglas & Sally, Hilmy & de Jong, Ijsbrand, 2007. "Costs and performance of irrigation projects: A comparison of Sub-Saharan Africa and other developing regions," IWMI Research Reports H036214, International Water Management Institute.
- Anthony Letsoalo & James Blignaut & Theuns de Wet & Martin de Wit & Sebastiaan Hess & Richard S.J. Tol & Jan van Heerden, 2005. "Triple Dividends Of Water Consumption Charges In South Africa," Working Papers FNU-62, Research unit Sustainability and Global Change, Hamburg University, revised Apr 2005.
- Molden, David, 2007. "Water for food, water for life: a comprehensive assessment of water management in agriculture: summary," IWMI Books, Reports H039769, International Water Management Institute.
- Maria Berrittella & Katrin Rehdanz & Arjen Y. Hoekstra & Roberto Roson & Richard S.J. Tol, 2006. "The Economic Impact Of Restricted Water Supply: A Computable General Equilibrium Analysis," Working Papers FNU-93, Research unit Sustainability and Global Change, Hamburg University, revised Jul 2006.
- Molden, David, 2007. "Water for food, water for life: a comprehensive assessment of water management in agriculture: summary. In Russian," IWMI Books, Reports H041260, International Water Management Institute.
- Burniaux, Jean-Marc & Truong Truong, 2002. "GTAP-E: An Energy-Environmental Version of the GTAP Model," GTAP Technical Papers 923, Center for Global Trade Analysis, Department of Agricultural Economics, Purdue University.
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