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The aim of this paper was to measure the technical efficiency of various sub-sectors of livestock farming in Spain on the basis of information released by the Spanish National Agricultural Accounting Network for the period 1993 to 2005, in order to perform a comparative analysis of these various sub-sectors and to attempt to determine the factors which affected their efficiency. The methodological framework for measuring the efficiency was the stochastic frontier function suggested by Battese and Coelli (1992) and the form chosen for it estimation was a Cobb-Douglas production function. The data base was composed with six variables, thirteen different accounting years and eleven types of livestock farming. The results of estimation indicate that, over the period considered, the efficiency levels decreased. The bovine sub-sector had the worst levels and growth rates, whilst the grain-fed sub-sector had the best results, probably because it is the most integrated. Este articulo tiene como objetivo medir la eficiencia tecnica de las Orientaciones Tecnico Economicas ganaderas a partir de la informacion de la Red Contable Agraria Nacional para el periodo 1993-2005 y realizar un analisis comparativo entre las ramas ganaderas en funcion de sus niveles de eficiencia. El marco metodologico para medir la eficiencia sera la funcion frontera estocastica propuesta por Battese y Coelli (1992), y la forma funcional elegida para su estimacion es una Cobb-Douglas, la base de datos esta constituida por un panel de 6 variables, 13 anos y 11 orientaciones ganaderas. Los resultados de las estimaciones, indican que a lo largo del periodo los niveles de Eficiencia han disminuido y, del conjunto de orientaciones, son las ramas Bovinas las que presentan menores indices y tasas de variacion mientras que las granivoras son las que obtienen los mejores resultados debido a su proceso de integracion productiva.

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Evolución de la eficiencia técnica de la ganadería española en el marco de la Política Agraria Común (PAC) (1993-2005) = Evolution of the technical efficiency of Spanish livestock farming under the Common Agricultural Policy (CAP) (1993 to 2005)