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Analysis of the Mix Efficiency of the Spanish Deep Trawl Fleet

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  • Recently, there has been an increasing interest among researchers on efficiency in fisheries. They have not just been focused on the analysis of the efficiency itself but also for other purposes as measures of capacity utilisation. However, often, efficiency analyses do not offer clear results regarding the sources of the inefficiency. Radial measures of efficiency have been commonly used whereas newer additive measures are of rare use. However, the combined implementation of both types of measures can be used for the study of mix inefficiency, that is, the inefficiency due to a wrong composition of inputs or outputs. Analysing the input and output mix is essential for a better understanding of the production process. In this paper we deal with this issue and apply it to the Spanish Deep Trawl fleet that operates in Moroccan Waters. Results show that some of the physical inputs are over-dimensioned. The efficiency with respect to the composition of the catch has also been examined, showing distinct strategies amongst fishermen.
  • Keywords: Fisheries Economics, Theoretical and Empirical Bio-Economic Modelling, Technical efficiency, Data Envelopment Analysis, mix efficiency
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  • Herrero, Ines, Sean Pascoe. 2002. Analysis of the Mix Efficiency of the Spanish Deep Trawl Fleet. Peer Review: No. In: Proceedings of the Eleventh Biennial Conference of the International Institute of Fisheries Economics and Trade, August 19-22, 2002, Wellington, New Zealand: Fisheries in the Global Economy. Compiled by Ann L. Shriver. International Institute of Fisheries Economics & Trade, Corvallis, Oregon, USA, 2002. CD ROM.
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