Are U.S. Corn and Soybeans Becoming More Drought Tolerant?
Abstract
The hypothesis that corn and soybeans have become more drought tolerant is tested by regressing county yields on a drought index and time. Results indicate that corn yield losses from drought of a given severity, whether measured in quantity terms or as a percentage of mean yields, have decreased over time. Soybean percentage yield losses have also declined, but absolute losses have remained largely constant. The potential impact of increased drought tolerance on U.S. crop insurance rates is illustrated by comparing Group Risk Plan premium rates assuming time-invariant susceptibility to drought with rates generated from this article’s regression results.Download Info
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Bibliographic Info
Paper provided by Iowa State University, Department of Economics in its series Staff General Research Papers with number 32098.Length:
Date of creation: 15 Nov 2010
Date of revision:
Publication status: Published in American Journal of Agricultural Economics 2010, vol. 92, pp. 1310-1323
Handle: RePEc:isu:genres:32098
Contact details of provider:
Postal: Iowa State University, Dept. of Economics, 260 Heady Hall, Ames, IA 50011-1070
Phone: +1 515.294.6741
Fax: +1 515.294.0221
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Web page: http://www.econ.iastate.edu
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Related research
Keywords: corn; crop insurance rates; drought tolerance; soybean; yield risk;Other versions of this item:
- Tian Yu & Bruce A. Babcock, 2010. "Are U.S. Corn and Soybeans Becoming More Drought Tolerant?," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 92(5), pages 1310-1323.
- Tian Yu & Bruce A. Babcock, 2009. "Are U.S. Corn and Soybeans Becoming More Drought Tolerant?," Center for Agricultural and Rural Development (CARD) Publications 09-wp500, Center for Agricultural and Rural Development (CARD) at Iowa State University.
- G22 - Financial Economics - - Financial Institutions and Services - - - Insurance; Insurance Companies
- Q10 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - General
- Q18 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Agricultural Policy; Food Policy
References
References listed on IDEASPlease 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.:
- O'Brien, Daniel & Hayenga, Marvin L. & Babcock, Bruce A., 1996. "Deriving Forecast Probability Distributions of Harvest-Time Corn Futures Prices," Staff General Research Papers 5234, Iowa State University, Department of Economics.
Citations
Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.Cited by:
- Xiaodong Du & David A. Hennessy & Cindy L. Yu, 2012.
"Testing Day's Conjecture that More Nitrogen Decreases Crop Yield Skewness,"
American Journal of Agricultural Economics,
Agricultural and Applied Economics Association, vol. 94(1), pages 225-237.
- Xiaodong Du & David A. Hennessy & Cindy L. Yu, 2010. "Testing Day's Conjecture that More Nitrogen Decreases Crop Yield Skewness," Center for Agricultural and Rural Development (CARD) Publications 10-wp511, Center for Agricultural and Rural Development (CARD) at Iowa State University.
- Du, Xiaodong & Hennessy, David A. & Yu, Cindy, 2012. "Testing Day's Conjecture That More Nitrogen Decreases Crop Yield Skewness," Staff General Research Papers 35022, Iowa State University, Department of Economics.
- Adhikari, Shyam & Knight, Thomas O. & Belasco, Eric J., 2012. "Evaluation of Crop Insurance Yield Guarantees and Producer Welfare with Upward-Trending Yields," Agricultural and Resource Economics Review, Northeastern Agricultural and Resource Economics Association, vol. 41(3), December.
- Du, Xiaodong & Hennessy, David A. & Yu, Cindy L. & Miao, Ruiqing, 2012. "Geography of Crop Yield Skewness," 2012 Annual Meeting, August 12-14, 2012, Seattle, Washington 124748, Agricultural and Applied Economics Association.
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