IDEAS home Printed from https://ideas.repec.org/p/sgc/wpaper/170.html
   My bibliography  Save this paper

Economy-wide Impacts of Climate on Agriculture in Sub-Saharan Africa

Author

Listed:
  • Alvaro Calzadilla
  • Tingju Zhu
  • Katrin Rehdanz
  • Richard S.J. Tol

    () (Economic and Social Research Institute)

  • Claudia Ringler

Abstract

Two possible adaptation options to climate change for Sub-Saharan Africa are analyzed under the SRES B2 scenario. The first scenario doubles irrigated areas 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 percent 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 model, and with GTAP-W, a general equilibrium model including water resources. The methodology combines advantages of a partial equilibrium approach, considering detailed wateragriculture linkages with a general equilibrium approach, which takes into account linkages between agriculture and non-agricultural 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 low initial irrigated areas inthe region, an increase in agricultural productivity achieves better outcomes than an expansion of irrigated areas. Even though Sub-Saharan Africa is not a key contributor to global food production or irrigated food production, both scenarios help lower world food prices, stimulating national and international food markets.

Suggested Citation

  • Alvaro Calzadilla & Tingju Zhu & Katrin Rehdanz & Richard S.J. Tol & Claudia Ringler, "undated". "Economy-wide Impacts of Climate on Agriculture in Sub-Saharan Africa," Working Papers FNU-170, Research unit Sustainability and Global Change, Hamburg University.
  • Handle: RePEc:sgc:wpaper:170
    as

    Download full text from publisher

    File URL: http://www.fnu.zmaw.de/fileadmin/fnu-files/publication/working-papers/CalzadillaFNU170.pdf
    File Function: First version, 2009
    Download Restriction: no

    References listed on IDEAS

    as
    1. Alvaro Calzadilla & Katrin Rehdanz & Richard S.J. Tol, 2008. "Water Scarcity And The Impact Of Improved Irrigation Management: A Cge Analysis," Working Papers FNU-160, Research unit Sustainability and Global Change, Hamburg University, revised Apr 2008.
    2. 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.
    3. 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.
    4. 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.
    5. Hertel, Thomas, 1997. "Global Trade Analysis: Modeling and applications," GTAP Books, Center for Global Trade Analysis, Department of Agricultural Economics, Purdue University, number 7685.
    6. 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.
    7. Scott McDonald & Sherman Robinson & Karen Thierfelder, 2007. "Globe: A SAM Based Global CGE Model using GTAP Data," Departmental Working Papers 14, United States Naval Academy Department of Economics.
    8. 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.
    9. 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).
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Roberto Ponce & Francesco Bosello & Carlo Giupponi, 2012. "Integrating Water Resources into Computable General Equilibrium Models - A Survey," Working Papers 2012.57, Fondazione Eni Enrico Mattei.
    2. Alvaro Calzadilla & Katrin Rehdanz & Richard Betts & Pete Falloon & Andy Wiltshire & Richard Tol, 2013. "Climate change impacts on global agriculture," Climatic Change, Springer, vol. 120(1), pages 357-374, September.
    3. Nicholas Kilimani & Jan van Heerden & Heinrich Bohlmann & Louise Roos, 2016. "Counting the cost of drought induced productivity losses in an agro-based economy: The case of Uganda," Working Papers 616, Economic Research Southern Africa.
    4. Calzadilla, Alvaro & Rehdanz, Katrin & Tol, Richard S.J., 2011. "The GTAP-W model: Accounting for water use in agriculture," Kiel Working Papers 1745, Kiel Institute for the World Economy (IfW).
    5. Henderson, J. Vernon & Storeygard, Adam & Deichmann, Uwe, 2014. "50 years of urbanization in Africa : examining the role of climate change," Policy Research Working Paper Series 6925, The World Bank.

    More about this item

    Keywords

    Computable General Equilibrium; Climate Change; Agriculture; Sub-Saharan Africa; Integrated Assessment Model;

    JEL classification:

    • D58 - Microeconomics - - General Equilibrium and Disequilibrium - - - Computable and Other Applied General Equilibrium Models
    • N57 - Economic History - - Agriculture, Natural Resources, Environment and Extractive Industries - - - Africa; Oceania
    • Q17 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Agriculture in International Trade
    • Q54 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Climate; Natural Disasters and their Management; Global Warming

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:sgc:wpaper:170. 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: (Uwe Schneider). General contact details of provider: http://edirc.repec.org/data/zmhamde.html .

    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 CitEc recognized a reference but did not link an item in RePEc 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 RePEc Author Service 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.

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.