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LA OFERTA DE MAIZ GRANO EN GUANAJUATO, MÉXICO: 1980-2009

Authors: Guzmán-Soria, E.; Rebollar-Rebollar, S.; Hernández-Martínez, J.; García-Salazar, J. A.; de la Garza-Carranza, M. T.; Callejas-Juárez, N.; Terrones-Cordero, A.;

LA OFERTA DE MAIZ GRANO EN GUANAJUATO, MÉXICO: 1980-2009

Abstract

En México la escasa rotación de cultivos ha afectado la capacidad del suelo para producir, el uso de genotipos de maíz con mayor potencial de rendimiento y sistemas de producción más intensivos ha incrementado la demanda de insumos; lo cual afecta la economía del productor. Para determinar el efecto de los cambios en el precio de los insumos y de los principales factores que explican la oferta de maíz grano en Guanajuato, en este trabajo se estimó un modelo econométrico compuesto por dos ecuaciones de oferta, tres de transmisión de los precios y una identidad para el periodo de 1980 a 2009. Los resultados indican que la oferta de maíz grano en el estado responde inelásticamente ante cambios en el precio medio rural del maíz producido bajo riego y de manera elástica si los cambios se suscitan en el mismo nivel de precio pero de la oferta en temporal, con elasticidades precio-propias de 0.8531 y 1.0604; los cambios en el precio de los insumos que más afectan la oferta estatal son el precio del plaguicida y de la mano de obra, con elasticidades precio-cruzada de -0.6154 y -0.5470; los cambios en el bien competitivo que más le impactan son los registrados en el frijol, con elasticidades precio-cruzada de -0.5489 si es producido bajo riego y de -1.0292 si es producido en temporal. El efecto de transmisión de los precios, indica que el precio al productor de maíz en riego y temporal estatal es influenciado directamente por el precio al mayoreo a razón de 0.79 y 0.80% por cada 1% de cambio en este último, mientras que el costo de transporte y el precio internacional del maíz inciden sobre el precio al mayoreo en el estado a niveles de 0.21 y 0.13% por cada cambio porcentual unitario en éstos.

Country
Mexico
Keywords

elasticities., supply, 330, S, Agriculture (General), temporal, riego, Agriculture, modelo econométrico, temporary, econometric model, irrigation, Maize, S1-972, elasticidades, oferta, Agrociencias, Maíz

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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