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Climate change and food security to 2030: a global economy-wide perspective

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  • Valenzuela, Ernesto
  • Anderson, Kym

Abstract

The effects of climate change on agriculture raise major food security concerns. We use a global economy-wide model to assess the effects on farm product prices of expected yield changes. Also modelled is an expected adverse effect of higher temperatures and humidity in the tropics on the productivity of unskilled workers in developing countries. Given the degrees of uncertainty about plausible effects of climate change, our modelling accounts for a range of yield productivity and labor shocks. The results entail consequences for international agricultural prices, national food consumption, self sufficiency, net farm income and economic welfare.

Suggested Citation

  • Valenzuela, Ernesto & Anderson, Kym, 2011. "Climate change and food security to 2030: a global economy-wide perspective," Economia Agraria y Recursos Naturales, Spanish Association of Agricultural Economists, vol. 11(01), pages 1-30, November.
    • Handle: RePEc:ags:earnsa:117616
    DOI: 10.22004/ag.econ.117616
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    4. Hertel, Thomas & Hummels, David & Ivanic, Maros & Keeney, Roman, 2007. "How confident can we be of CGE-based assessments of Free Trade Agreements?," Economic Modelling, Elsevier, vol. 24(4), pages 611-635, July.
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    6. Garnaut,Ross, 2008. "The Garnaut Climate Change Review," Cambridge Books, Cambridge University Press, number 9780521744447, September.
    7. Will Martin & Kym Anderson, 2012. "Export Restrictions and Price Insulation During Commodity Price Booms," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 94(2), pages 422-427.
    8. Kym Anderson & Will Martin, 2009. "Distortions to Agricultural Incentives in Asia," World Bank Publications - Books, The World Bank Group, number 2611.
    9. Golub, Alla & Hertel, Thomas & Taheripour, Farzad & Tyner, Wally, 2010. "Modeling Biofuels Policies in General Equilibrium: Insights, Pitfalls and Opportunities," GTAP Working Papers 3406, Center for Global Trade Analysis, Department of Agricultural Economics, Purdue University.
    10. Anderson, Kym & Kurzweil, Marianne & Martin, Will & Sandri, Damiano & Valenzuela, Ernesto, 2008. "Measuring distortions to agricultural incentives, revisited," World Trade Review, Cambridge University Press, vol. 7(4), pages 675-704, October.
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    13. Golub, Alla & Hertel, Thomas & Lee, Huey-Lin & Rose, Steven & Sohngen, Brent, 2009. "The opportunity cost of land use and the global potential for greenhouse gas mitigation in agriculture and forestry," Resource and Energy Economics, Elsevier, vol. 31(4), pages 299-319, November.
    14. Hertel, Thomas & Burke, Marshall & Lobell, David, 2010. "The Poverty Implications of Climate-Induced Crop Yield Changes by 2030," GTAP Working Papers 3196, Center for Global Trade Analysis, Department of Agricultural Economics, Purdue University.
    15. -, 2009. "The economics of climate change," Sede Subregional de la CEPAL para el Caribe (Estudios e Investigaciones) 38679, Naciones Unidas Comisión Económica para América Latina y el Caribe (CEPAL).
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    Cited by:

    1. Kym Anderson, 2016. "Agricultural Trade, Policy Reforms, and Global Food Security," Palgrave Studies in Agricultural Economics and Food Policy, Palgrave Macmillan, number 978-1-137-46925-0, November.
    2. Altvater, Susanne & de Block, Debora & Bouwma, Irene & Dworak, Thomas & Frelih-Larsen, Ana & Görlach, Benjamin & Hermeling, Claudia & Klostermann, Judith & König, Martin & Leitner, Markus & Marinova, , 2012. "Adaptation measures in the EU: Policies, costs, and economic assessment. "Climate Proofing" of key EU policies," ZEW Expertises, ZEW - Leibniz Centre for European Economic Research, number 110558.
    3. Anderson, Kym & Jha, Shikha & Nelgen, Signe & Strutt, Anna, 2012. "Reexamining Policies for Food Security," ADB Economics Working Paper Series 301, Asian Development Bank.

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    More about this item

    Keywords

    Agricultural and Food Policy; Environmental Economics and Policy; Food Security and Poverty;
    All these keywords.

    JEL classification:

    • D58 - Microeconomics - - General Equilibrium and Disequilibrium - - - Computable and Other Applied General Equilibrium Models
    • F17 - International Economics - - Trade - - - Trade Forecasting and Simulation
    • Q17 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Agriculture in International Trade
    • Q24 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation - - - Land
    • Q54 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Climate; Natural Disasters and their Management; Global Warming

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