Are U.S. Corn and Soybeans Becoming More Drought Tolerant?
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.
To our knowledge, this item is not available for
download. To find whether it is available, there are three
1. Check below under "Related research" whether another version of this item is available online.
2. Check on the provider's web page whether it is in fact available.
3. Perform a search for a similarly titled item that would be available.
|Date of creation:||15 Nov 2010|
|Date of revision:|
|Publication status:||Published in American Journal of Agricultural Economics 2010, vol. 92, pp. 1310-1323|
|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
Web page: http://www.econ.iastate.edu
More information through EDIRC
Please 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.:
- Daniel O'Brien & Marvin Hayenga & Bruce Babcock, 1996.
"Deriving Forecast Probability Distributions of Harvest-Time Corn Futures Prices,"
Review of Agricultural Economics,
Agricultural and Applied Economics Association, vol. 18(2), pages 167-180.
- 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.
When requesting a correction, please mention this item's handle: RePEc:isu:genres:32098. 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: (Curtis Balmer)
If references are entirely missing, you can add them using this form.