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R. 2004. Determination of technical efficiency of fisheries by stochastic frontier models: a case on the Gulf of Cádiz (Spain). e ICES Journal of Marine Science, 61: 416e421.We give a broad review of a variety of econometric procedures to estimate technical efficiency and compare the results of several of them based on an application to the purseseine fishery operating in the Gulf of Cádiz in 1998 and 1999. As these approaches provide different technical efficiency estimates, they might have different policy implications. Two conclusions are obtained: firstly, the higher the useful life of vessels is, the smaller the technical efficiency is; and secondly, the present total allowable catch regime based only on vessels larger than 12 m is unsuitable for this fishery.

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