Impacts of international research on intertemporal yield stability in wheat and maize: an economic assessment

dc.creatorGollin, D.
dc.date2012-01-06T05:10:38Z
dc.date2012-01-06T05:10:38Z
dc.date2006
dc.date.accessioned2023-07-17T19:55:41Z
dc.date.available2023-07-17T19:55:41Z
dc.identifier970-648-139-7
dc.identifierhttp://hdl.handle.net/10883/1053
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7508380
dc.descriptionCritics of modern maize and wheat varieties (MVs) have suggested that, in developing countries, yields of these varieties vary more from season to season than yields of farmers’ traditional varieties, thereby exposing consumers and producers to greater risk. Drawing on country-level data for MV diffusion, as well as aggregate data on production and yields from FAOSTAT, this study makes novel use of the Hodrick-Prescott filter to disentangle changes in trend from annual fluctuations. The outcomes suggest that, over the past 40 years, the relative variability of grain yields—that is, the absolute magnitude of deviations from the yield trend—has declined for both wheat and maize in developing countries, and that the reduction is statistically associated with the spread of MVs, even after controlling for expanded use of irrigation and other inputs. At appropriate world prices, the annual benefits from improved yield stability alone are about US$143 million for wheat and about US$149 million for maize.
dc.description27 pages
dc.formatPDF
dc.languageEnglish
dc.publisherCIMMYT
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dc.rightsOpen Access
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectWHEAT
dc.subjectMAIZE
dc.subjectVARIETIES
dc.subjectAGRICULTURAL DEVELOPMENT
dc.subjectECONOMIC ANALYSIS
dc.subjectAGRICULTURAL POLICIES
dc.subjectAGRICULTURAL RESEARCH
dc.subjectPRODUCTION ECONOMICS
dc.subjectDATA COLLECTION
dc.subjectSTATISTICS
dc.subjectPRICES
dc.subjectYIELDS
dc.subjectDEVELOPING COUNTRIES
dc.subjectWHEAT
dc.subjectMAIZE
dc.subjectVARIETIES
dc.subjectAGRICULTURAL DEVELOPMENT
dc.subjectECONOMIC ANALYSIS
dc.subjectAGRICULTURAL POLICIES
dc.subjectAGRICULTURAL RESEARCH
dc.subjectPRODUCTION ECONOMICS
dc.subjectDATA COLLECTION
dc.subjectSTATISTICS
dc.subjectPRICES
dc.subjectYIELDS
dc.subjectDEVELOPING COUNTRIES
dc.titleImpacts of international research on intertemporal yield stability in wheat and maize: an economic assessment
dc.typeBook
dc.coverageMexico


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