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Pesca Demersal en Chile: Eficiencia Técnica y Escalas de Operación

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Author Info
Julio Peña-Torres () (ILADES-Georgetown University, Universidad Alberto Hurtado)
Julio Aguirre Montoya () (INDECOPI, Perú)
René Cerdá D'amico () (Pontificia Universidad Católica de Valparaíso.)
Abstract

Este trabajo presenta estimaciones de eficiencia técnica en faenas de pesca de barcos industriales que operaron en la década 1990-2000, en la pesquería de merluza común. Se comparan los resultados de dos algoritmos que estiman modelos de fronteras estocásticas de producción, uno con efectos fijos y otro conefectos aleatorios. Entre los resultados obtenidos se destaca: (a) Se obtiene una elevada y significativa correlación entre los rankings de eficiencias estimadas con uno y otro algoritmo. (b) El algoritmo con efectos fijos genera mayores scores de eficiencia y distribuciones de eficiencia con mayor dispersión. (c)Ambos algoritmos estiman mayores eficiencias para barcos con mayor tamaño y potencia de motor. Mientras que barcos de menor tamaño presentan mayor dispersión en sus eficiencias estimadas. Esto último insinúa la presencia de mayor heterogeneidad tecnológica en este último grupo de barcos. (d) Por otro lado, estimadores consistentes señalan la presencia de rendimientos marginales decrecientes ante aumentos en el nivel del esfuerzo de pesca de cada barco. (e) Lo anterior es consistente con resultados que insinúan la presencia de efectos congestión, asociados a la escala de operación pesquera del total de la flota industrial en estudio. (f) Se confirma la relevancia empírica de la forma funcional Translog. Con ello, estimaciones punto para los valores de elasticidades captura-insumo en general dependen de la escala agregada de operación pesquera y/o de la abundancia del stock de peces bajo explotación.

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Paper provided by Ilades-Georgetown University, School of Economics and Bussines in its series ILADES-Georgetown University Working Papers with number inv152.

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Length: 44 pages
Date of creation: Apr 2004
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Handle: RePEc:ila:ilades:inv152

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Related research
Keywords: Fronteras estocásticas; eficiencia técnica; estimación de panel; pesca demersal en Chile; pesquería de merluza común (merluccius gayi).;

Find related papers by JEL classification:
Q22 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation - - - Fishery
C33 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Models with Panel Data
L7 - Industrial Organization - - Industry Studies: Primary Products and Construction

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