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A Comparative Evaluation of the Estimation of Effort-Profit Relationships in the Scottish Demersal Trawl Fishery

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  • Generalised linear estimation and multi-layer perception neural network modelling techniques were applied to the Scottish trawler fleet data in order to estimate which inputs have the greatest impact on boat profits and output. Both produced comparable estimates that revealed inelastic and non-linear response to vessel power and length, negative response to vessel size (tonnage), and elastic response to both trip frequency and trip duration. Profit and catch-effort elasticities were greater for smaller vessels.
  • Keywords: Theoretical and Empirical Bio-Economic Modelling, Fisheries Economics
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  • Revell, B. J., S. Pascoe. 2002. A Comparative Evaluation of the Estimation of Effort-Profit Relationships in the Scottish Demersal Trawl Fishery. 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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