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Climate, Agriculture and Food

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  • Ariel Ortiz-Bobea

Abstract

Agriculture is arguably the most climate-sensitive sector of the economy. Growing concerns about anthropogenic climate change have increased research interest in assessing its potential impact on the sector and in identifying policies and adaptation strategies to help the sector cope with a changing climate. This chapter provides an overview of recent advancements in the analysis of climate change impacts and adaptation in agriculture with an emphasis on methods. The chapter provides an overview of recent research efforts addressing key conceptual and empirical challenges. The chapter also discusses practical matters about conducting research in this area and provides reproducible R code to perform common tasks of data preparation and model estimation in this literature. The chapter provides a hands-on introduction to new researchers in this area.

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  • Ariel Ortiz-Bobea, 2021. "Climate, Agriculture and Food," Papers 2105.12044, arXiv.org.
  • Handle: RePEc:arx:papers:2105.12044
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    1. Joshua D. Angrist & Jörn-Steffen Pischke, 2010. "The Credibility Revolution in Empirical Economics: How Better Research Design Is Taking the Con out of Econometrics," Journal of Economic Perspectives, American Economic Association, vol. 24(2), pages 3-30, Spring.
    2. Richard Hornbeck, 2012. "The Enduring Impact of the American Dust Bowl: Short- and Long-Run Adjustments to Environmental Catastrophe," American Economic Review, American Economic Association, vol. 102(4), pages 1477-1507, June.
    3. Cline, William R, 1996. "The Impact of Global Warming on Agriculture: Comment," American Economic Review, American Economic Association, vol. 86(5), pages 1309-1311, December.
    4. Frances C. Moore & David B. Lobell, 2014. "Adaptation potential of European agriculture in response to climate change," Nature Climate Change, Nature, vol. 4(7), pages 610-614, July.
    5. Orley Ashenfelter & Karl Storchmann, 2010. "Using Hedonic Models of Solar Radiation and Weather to Assess the Economic Effect of Climate Change: The Case of Mosel Valley Vineyards," The Review of Economics and Statistics, MIT Press, vol. 92(2), pages 333-349, May.
    6. Gary Solon & Steven J. Haider & Jeffrey M. Wooldridge, 2015. "What Are We Weighting For?," Journal of Human Resources, University of Wisconsin Press, vol. 50(2), pages 301-316.
    7. Charlotte Janssens & Petr Havlík & Tamás Krisztin & Justin Baker & Stefan Frank & Tomoko Hasegawa & David Leclère & Sara Ohrel & Shaun Ragnauth & Erwin Schmid & Hugo Valin & Nicole Van Lipzig & Miet M, 2020. "Global hunger and climate change adaptation through international trade," Nature Climate Change, Nature, vol. 10(9), pages 829-835, September.
    8. Pierre Mérel & Matthew Gammans, 2021. "Climate Econometrics: Can the Panel Approach Account for Long‐Run Adaptation?," American Journal of Agricultural Economics, John Wiley & Sons, vol. 103(4), pages 1207-1238, August.
    9. Severen, Christopher & Costello, Christopher & Deschênes, Olivier, 2018. "A Forward-Looking Ricardian Approach: Do land markets capitalize climate change forecasts?," Journal of Environmental Economics and Management, Elsevier, vol. 89(C), pages 235-254.
    10. Steven Buck & Maximilian Auffhammer & David Sunding, 2014. "Land Markets and the Value of Water: Hedonic Analysis Using Repeat Sales of Farmland," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 96(4), pages 953-969.
    11. Richard M. Adams, 1989. "Global Climate Change and Agriculture: An Economic Perspective," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 71(5), pages 1272-1279.
    12. Raymond B. Palmquist, 1989. "Land as a Differentiated Factor of Production: A Hedonic Model and Its Implications for Welfare Measurement," Land Economics, University of Wisconsin Press, vol. 65(1), pages 23-28.
    13. Wolfram Schlenker & Michael J. Roberts & David B. Lobell, 2013. "US maize adaptability," Nature Climate Change, Nature, vol. 3(8), pages 690-691, August.
    14. Francis Annan & Wolfram Schlenker, 2015. "Federal Crop Insurance and the Disincentive to Adapt to Extreme Heat," American Economic Review, American Economic Association, vol. 105(5), pages 262-266, May.
    15. Randhir, Timothy O. & Hertel, Thomas W., 2000. "Trade Liberalization as a Vehicle for Adapting to Global Warming," Agricultural and Resource Economics Review, Cambridge University Press, vol. 29(2), pages 159-172, October.
    16. Gammans, Matthew & Mérel, Pierre & Paroissien, Emmanuel, 2020. "Reckoning climate change damages along an envelope," 2020 Annual Meeting, July 26-28, Kansas City, Missouri 304475, Agricultural and Applied Economics Association.
    17. Hertel, Thomas, 2013. "Global Applied General Equilibrium Analysis Using the Global Trade Analysis Project Framework," Handbook of Computable General Equilibrium Modeling, in: Peter B. Dixon & Dale Jorgenson (ed.), Handbook of Computable General Equilibrium Modeling, edition 1, volume 1, chapter 0, pages 815-876, Elsevier.
    18. Anthony C. Fisher & W. Michael Hanemann & Michael J. Roberts & Wolfram Schlenker, 2012. "The Economic Impacts of Climate Change: Evidence from Agricultural Output and Random Fluctuations in Weather: Comment," American Economic Review, American Economic Association, vol. 102(7), pages 3749-3760, December.
    19. Wu, Wenbin & Yu, Qiangyi & You, Liangzhi & Chen, Kevin & Tang, Huajun & Liu, Jianguo, 2018. "Global cropping intensity gaps: Increasing food production without cropland expansion," Land Use Policy, Elsevier, vol. 76(C), pages 515-525.
    20. Charles D. Kolstad & Frances C. Moore, 2020. "Estimating the Economic Impacts of Climate Change Using Weather Observations," Review of Environmental Economics and Policy, University of Chicago Press, vol. 14(1), pages 1-24.
    21. John K. Horowitz & John Quiggin, 1999. "The Impact of Global Warming on Agriculture: A Ricardian Analysis: Comment," American Economic Review, American Economic Association, vol. 89(4), pages 1044-1045, September.
    22. Hannah Druckenmiller & Solomon Hsiang, 2018. "Accounting for Unobservable Heterogeneity in Cross Section Using Spatial First Differences," NBER Working Papers 25177, National Bureau of Economic Research, Inc.
    23. Arnaud Costinot & Dave Donaldson & Cory Smith, 2016. "Evolving Comparative Advantage and the Impact of Climate Change in Agricultural Markets: Evidence from 1.7 Million Fields around the World," Journal of Political Economy, University of Chicago Press, vol. 124(1), pages 205-248.
    24. Rosen, Sherwin, 1974. "Hedonic Prices and Implicit Markets: Product Differentiation in Pure Competition," Journal of Political Economy, University of Chicago Press, vol. 82(1), pages 34-55, Jan.-Feb..
    25. Nathan P. Hendricks, 2018. "Potential Benefits from Innovations to Reduce Heat and Water Stress in Agriculture," Journal of the Association of Environmental and Resource Economists, University of Chicago Press, vol. 5(3), pages 545-576.
    26. Gammans, Matthew & Mérel, Pierre & Ortiz-Bobea, Ariel, 2016. "The impact of climate change on cereal yields: Statistical evidence from France," 2016 Annual Meeting, July 31-August 2, Boston, Massachusetts 236322, Agricultural and Applied Economics Association.
    27. Nicolas Gatti & Kathy Baylis & Benjamin Crost, 2021. "Can Irrigation Infrastructure Mitigate the Effect of Rainfall Shocks on Conflict? Evidence from Indonesia," American Journal of Agricultural Economics, John Wiley & Sons, vol. 103(1), pages 211-231, January.
    28. Edwards, Eric C. & Smith, Steven M., 2018. "The Role of Irrigation in the Development of Agriculture in the United States," The Journal of Economic History, Cambridge University Press, vol. 78(4), pages 1103-1141, December.
    29. Newey, Whitney & West, Kenneth, 2014. "A simple, positive semi-definite, heteroscedasticity and autocorrelation consistent covariance matrix," Applied Econometrics, Russian Presidential Academy of National Economy and Public Administration (RANEPA), vol. 33(1), pages 125-132.
    30. John J. Morgan, 1961. "Use of Weather Factors in Short-Run Forecasts of Crop Yields," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 43(5), pages 1172-1178.
    31. Carlo Fezzi & Ian Bateman, 2015. "The Impact of Climate Change on Agriculture: Nonlinear Effects and Aggregation Bias in Ricardian Models of Farmland Values," Journal of the Association of Environmental and Resource Economists, University of Chicago Press, vol. 2(1), pages 57-92.
    32. Rainer Schickele, 1949. "Farm Business Survival under Extreme Weather Risks," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 31(4_Part_2), pages 931-943.
    33. Griliches, Zvi & Hausman, Jerry A., 1986. "Errors in variables in panel data," Journal of Econometrics, Elsevier, vol. 31(1), pages 93-118, February.
    34. Corey Lesk & Pedram Rowhani & Navin Ramankutty, 2016. "Influence of extreme weather disasters on global crop production," Nature, Nature, vol. 529(7584), pages 84-87, January.
    35. Marshall Burke & Kyle Emerick, 2016. "Adaptation to Climate Change: Evidence from US Agriculture," American Economic Journal: Economic Policy, American Economic Association, vol. 8(3), pages 106-140, August.
    36. Danyelle Branco & José Féres, 2021. "Weather Shocks and Labor Allocation: Evidence from Rural Brazil," American Journal of Agricultural Economics, John Wiley & Sons, vol. 103(4), pages 1359-1377, August.
    37. Lawrence H. Shaw, 1964. "The Effect of Weather on Agricultural Output: A Look at Methodology," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 46(1), pages 218-230.
    38. Roy Darwin, 1999. "The Impact of Global Warming on Agriculture: A Ricardian Analysis: Comment," American Economic Review, American Economic Association, vol. 89(4), pages 1049-1052, September.
    39. Teevrat Garg & Maulik Jagnani & Vis Taraz, 2020. "Temperature and Human Capital in India," Journal of the Association of Environmental and Resource Economists, University of Chicago Press, vol. 7(6), pages 1113-1150.
    40. Ethan E. Butler & Peter Huybers, 2013. "Adaptation of US maize to temperature variations," Nature Climate Change, Nature, vol. 3(1), pages 68-72, January.
    41. Elodie Blanc & Wolfram Schlenker, 2017. "The Use of Panel Models in Assessments of Climate Impacts on Agriculture," Review of Environmental Economics and Policy, Association of Environmental and Resource Economists, vol. 11(2), pages 258-279.
    42. Uris Lantz C. Baldos & Thomas W. Hertel, 2014. "Global food security in 2050: the role of agricultural productivity and climate change," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 58(4), pages 554-570, October.
    43. J. A. Hodges, 1931. "The Effect of Rainfall and Temperature on Corn Yields in Kansas," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 13(2), pages 305-318.
    44. John M. Antle, 1983. "Sequential Decision Making in Production Models," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 65(2), pages 282-290.
    45. Aaron M. Shew & Jesse B. Tack & Lawton L. Nalley & Petronella Chaminuka, 2020. "Yield reduction under climate warming varies among wheat cultivars in South Africa," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
    46. Michael J. Roberts & Wolfram Schlenker & Jonathan Eyer, 2013. "Agronomic Weather Measures in Econometric Models of Crop Yield with Implications for Climate Change," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 95(2), pages 236-243.
    47. Xiaomeng Cui, 2020. "Beyond Yield Response: Weather Shocks and Crop Abandonment," Journal of the Association of Environmental and Resource Economists, University of Chicago Press, vol. 7(5), pages 901-932.
    48. Kahn, Matthew E., 2015. "Climate Change Adaptation: Lessons from Urban Economics," Strategic Behavior and the Environment, now publishers, vol. 5(1), pages 1-30, June.
    49. Gouel, Christophe & Laborde, David, 2021. "The crucial role of domestic and international market-mediated adaptation to climate change," Journal of Environmental Economics and Management, Elsevier, vol. 106(C).
    50. Bernard Oury, 1965. "Allowing for Weather in Crop Production Model Building," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 47(2), pages 270-283.
    51. Antle, John M., 1983. "Sequential Decision Making in Production Models," 1983 Annual Meeting, July 31-August 3, West Lafayette, Indiana 279107, American Agricultural Economics Association (New Name 2008: Agricultural and Applied Economics Association).
    52. Matranga, Andrea, 2017. "The Ant and the Grasshopper: Seasonality and the Invention of Agriculture," MPRA Paper 76626, University Library of Munich, Germany.
    53. Mendelsohn, Robert & Nordhaus, William D & Shaw, Daigee, 1994. "The Impact of Global Warming on Agriculture: A Ricardian Analysis," American Economic Review, American Economic Association, vol. 84(4), pages 753-771, September.
    54. J. Elhorst, 2010. "Applied Spatial Econometrics: Raising the Bar," Spatial Economic Analysis, Taylor & Francis Journals, vol. 5(1), pages 9-28.
    55. Monobina Mukherjee & Kurt Schwabe, 2015. "Irrigated Agricultural Adaptation to Water and Climate Variability: The Economic Value of a Water Portfolio," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 97(3), pages 809-832.
    56. Schlenker, Wolfram & Hanemann, W. Michael & Fisher, Anthony C., 2004. "Will U.S. Agriculture Really Benefit from Global Warming? Accounting for Irrigation in the Hedonic Approach," Department of Agricultural & Resource Economics, UC Berkeley, Working Paper Series qt65s781bh, Department of Agricultural & Resource Economics, UC Berkeley.
    57. 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.
    58. David B. Lobell & Graeme L. Hammer & Greg McLean & Carlos Messina & Michael J. Roberts & Wolfram Schlenker, 2013. "The critical role of extreme heat for maize production in the United States," Nature Climate Change, Nature, vol. 3(5), pages 497-501, May.
    59. 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.
    60. Kaufmann, Robert K., 1998. "The impact of climate change on US agriculture: a response to Mendelssohn et al. (1994)," Ecological Economics, Elsevier, vol. 26(2), pages 113-119, August.
    61. Ortiz-Bobea, Ariel, 2016. "The Economic Impacts of Climate Change on Agriculture: Accounting for Time-invariant Unobservables in the Hedonic Approach," Working Papers 250035, Cornell University, Department of Applied Economics and Management.
    62. Maximilian Auffhammer & Solomon M. Hsiang & Wolfram Schlenker & Adam Sobel, 2013. "Using Weather Data and Climate Model Output in Economic Analyses of Climate Change," Review of Environmental Economics and Policy, Association of Environmental and Resource Economists, vol. 7(2), pages 181-198, July.
    63. Kentaro Kawasaki & Shinsuke Uchida, 2016. "Quality Matters More Than Quantity: Asymmetric Temperature Effects on Crop Yield and Quality Grade," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 98(4), pages 1195-1209.
    64. J. Roy Black & Stanley R. Thompson, 1978. "Some Evidence on Weather-Crop-Yield Interaction," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 60(3), pages 540-543.
    65. Avery S. Cohn & Leah K. VanWey & Stephanie A. Spera & John F. Mustard, 2016. "Cropping frequency and area response to climate variability can exceed yield response," Nature Climate Change, Nature, vol. 6(6), pages 601-604, June.
    66. Wolfram Schlenker & W. Michael Hanemann & Anthony C. Fisher, 2005. "Will U.S. Agriculture Really Benefit from Global Warming? Accounting for Irrigation in the Hedonic Approach," American Economic Review, American Economic Association, vol. 95(1), pages 395-406, March.
    67. Conley, T. G., 1999. "GMM estimation with cross sectional dependence," Journal of Econometrics, Elsevier, vol. 92(1), pages 1-45, September.
    68. Kelley Pace, R. & LeSage, James P., 2008. "A spatial Hausman test," Economics Letters, Elsevier, vol. 101(3), pages 282-284, December.
    69. A. Colin Cameron & Douglas L. Miller, 2015. "A Practitioner’s Guide to Cluster-Robust Inference," Journal of Human Resources, University of Wisconsin Press, vol. 50(2), pages 317-372.
    70. Colin Carter & Xiaomeng Cui & Dalia Ghanem & Pierre Mérel, 2018. "Identifying the Economic Impacts of Climate Change on Agriculture," Annual Review of Resource Economics, Annual Reviews, vol. 10(1), pages 361-380, October.
    71. Moulton, Brent R., 1986. "Random group effects and the precision of regression estimates," Journal of Econometrics, Elsevier, vol. 32(3), pages 385-397, August.
    72. Neville Nicholls, 1997. "Increased Australian wheat yield due to recent climate trends," Nature, Nature, vol. 387(6632), pages 484-485, May.
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