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Eficiencia tecnica en pesquerias multiespecie: una aproximacion primal

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Author Info
Orea, Luis
Pinilla, Antonio Alvarez

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Abstract

RESUMEN: El objetivo de este trabajo es estudiar, desde el punto de vista primal, la eficiencia técnica de una muestra de barcos dedicados a la pesca de merluza en Asturias. Un rasgo característico de esta actividad es la importancia que tienen las capturas de otras especies distintas de la merluza. La naturaleza multiproducto de esta actividad plantea distintas alternativas de modelización. En este trabajo se comparan los resultados obtenidos a partir de la estimación de una función de producción agregada, una función de producción multiproducto y una función de distancia. Los tres modelos se estiman utilizando el estimador intragrupos. En una segunda etapa, los índices de eficiencia se calculan a partir de los efectos individuales una vez eliminada la influencia de variables invariantes en el tiempo. Para la realización del estudio empírico se dispone de un panel de datos que contiene información acerca de la actividad pesquera de once embarcaciones asturianas a lo largo de 1999. SUMMARY: The objective of this paper is to study, following a primal approach, the technical efficiency of a sample of boats which catch hake in Asturias. In this activity the catches of species different from hake are important. The multiproduct nature of this activity raises different modelling alternatives. In this paper we compare the results obtained in the estimation of an aggregate production function, a multiproduct production function, and a distance function. The three models are estimated using the within-groups estimator. After eliminating the influence of time invariant variables, the efficiency indexes are calculated in a second stage using the individual fixed effects. The empirical analysis uses a panel data set of eleven boats in 1999.

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Publisher Info
Article provided by Spanish Association of Agricultural Economists in its journal Economia Agraria y Recursos Naturales.

Volume (Year): 2 (2002)
Issue (Month): 1 ()
Pages:
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Handle: RePEc:ags:earnsa:28758

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Related research
Keywords: efficiency; distance function; multiproduct; fisheries; Resource /Energy Economics and Policy; Q22; P11;

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This page was last updated on 2009-12-26.

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