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Endogenous fisheries management in a stochastic model: Why do fishery agencies use TAC

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  • Gutiérrez Huerta, María José
  • Da Rocha, José María

Abstract

The aim of this paper is to explain under which circumstances using TACs as instrument to manage a fishery along with fishing periods may be interesting from a regulatory point of view. In order to do this, the deterministic analysis of Homans and Wilen (1997)and Anderson (2000) is extended to a stochastic scenario where the resource cannot be measured accurately. The resulting endogenous stochastic model is numerically solved for finding the optimal control rules in the Iberian sardine stock. Three relevant conclusions can be highligted from simulations. First, the higher the uncertainty about the state of the stock is, the lower the probability of closing the fishery is. Second, the use of TACs as management instrument in fisheries already regulated with fishing periods leads to: i) An increase of the optimal season length and harvests, especially for medium and high number of licences, ii) An improvement of the biological and economic variables when the size of the fleet is large; and iii) Eliminate the extinction risk for the resource. And third, the regulator would rather select the number of licences and do not restrict the season length.

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Bibliographic Info

Paper provided by University of the Basque Country - Department of Foundations of Economic Analysis II in its series DFAEII Working Papers with number 2010-13.

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Date of creation: Dec 2010
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Handle: RePEc:ehu:dfaeii:201013

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Postal: Dpto. de Fundamentos del Análisis Económico II, = Facultad de CC. Económicas y Empresariales, Universidad del País Vasco, Avda. Lehendakari Aguirre 83, 48015 Bilbao, Spain
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Keywords: TAC; season lengths; fisheries management; stock uncertainty;

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  1. Trond Bjørndal & Daniel Gordon & Veijo Kaitala & Marko Lindroos, 2004. "International Management Strategies for a Straddling Fish Stock: A Bio-Economic Simulation Model of the Norwegian Spring-Spawning Herring Fishery," Environmental & Resource Economics, European Association of Environmental and Resource Economists, vol. 29(4), pages 435-457, December.
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