Reducing the maize yield gap in Ethiopia: decomposition and policy simulation

dc.creatorvan Dijk, M.
dc.creatorMorley, T.
dc.creatorLoon, M.P. van
dc.creatorReidsma, P.
dc.creatorFantaye, K. T.
dc.creatorIttersum, M.K. van
dc.date2020-06-02T00:15:19Z
dc.date2020-06-02T00:15:19Z
dc.date2020
dc.date.accessioned2023-07-17T20:06:06Z
dc.date.available2023-07-17T20:06:06Z
dc.identifier0312-521X
dc.identifierhttps://hdl.handle.net/10883/20886
dc.identifier10.1016/j.agsy.2020.102828
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7512687
dc.descriptionMaize is an important staple crop in Ethiopia. Reducing the yield gap - the difference between actual and (water-limited) potential yield - has wide implications for food security and policy. In this paper we combine stochastic frontier analysis of household survey data with agronomic information on (water-limited) potential yield to decompose the maize yield gap in Ethiopia and highlight policy solutions to reduce the yield gap. Our analysis suggests that lack of access to advanced technologies makes up the largest component of the maize yield gap but market imperfections, economic constraints and management constraints are also important determinants. Potentially, maize production can be increased almost fivefold if all these constraints would be addressed simultaneously and the yield gap could be fully closed. Another finding of the paper is measurement issues in the national household survey (LSMS-ISA), a key source of information for scientists to assess agricultural policies in Ethiopia and other African countries. A comparison with results from a crop model suggests a large number of unrealistic values related to key maize input and output variables. Combining economic and agronomic approaches is therefore not only useful to identify policies to reduce maize yield gaps, but also to assess and improve the quality of data-bases on which recommendations are made.
dc.descriptionThe dataset related with this article is only referential
dc.formatPDF
dc.languageEnglish
dc.publisherElsevier
dc.relationhttps://ars.els-cdn.com/content/image/1-s2.0-S0308521X19314490-mmc1.pdf
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dc.rightsOpen Access
dc.sourceart. 102828
dc.source183
dc.sourceAgricultural Systems
dc.subjectMAIZE
dc.subjectYIELD GAP
dc.subjectPOLICIES
dc.titleReducing the maize yield gap in Ethiopia: decomposition and policy simulation
dc.typeArticle
dc.coverageETHIOPIA
dc.coverageBarking, Essex (United Kingdom)


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