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Bio-Economies of Scope and the Discard Problem in Mulitple Species Fisheries

  • Singh, Rajesh
  • Weninger, Quinn

This paper considers the problem of multi-species fisheries management when targeting individual species is costly and at-sea discards of fish by fishermen are unobserved by the regulator. Stock conditions, ecosystem interaction, technological specification, and relative prices under which at sea discards are acute are identified. A dynamic model is developed to balance ecological interdependencies among multiple fish species, and scope economies implicit in a costly targeting technology. Three regulatory regimes, species-specific harvest quotas, landing taxes, and revenue quotas, are contrasted against a hypothetical sole owner problem. An optimal plan under all regimes precludes discarding. For both very low and very high levels of targeting costs, first best welfare is close to that achieved through any of the regulatory regimes. In general, however, landing taxes welfare dominate species-specific quota regulation; a revenue quota fares the worst.

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File URL: http://www.econ.iastate.edu/sites/default/files/publications/papers/p5442-2009-12-22.pdf
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Paper provided by Iowa State University, Department of Economics in its series Staff General Research Papers with number 12839.

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Date of creation: 22 Dec 2009
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Publication status: Published in Journal of Environmental Economics and Management, July 2009, vol. 58 no. 1, pp. 72-92
Handle: RePEc:isu:genres:12839
Contact details of provider: Postal: Iowa State University, Dept. of Economics, 260 Heady Hall, Ames, IA 50011-1070
Phone: +1 515.294.6741
Fax: +1 515.294.0221
Web page: http://www.econ.iastate.edu
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  1. Turner, Matthew A., 1997. "Quota-Induced Discarding in Heterogeneous Fisheries," Journal of Environmental Economics and Management, Elsevier, vol. 33(2), pages 186-195, June.
  2. Diewert, W. E., 1973. "Functional forms for profit and transformation functions," Journal of Economic Theory, Elsevier, vol. 6(3), pages 284-316, June.
  3. Flaaten, Ola, 1991. "Bioeconomics of sustainable harvest of competing species," Journal of Environmental Economics and Management, Elsevier, vol. 20(2), pages 163-180, March.
  4. Brown, Gardner & Berger, Brett & Ikiara, Moses, 2005. "Different property rights regimes in the Lake Victoria multiple species fishery," Environment and Development Economics, Cambridge University Press, vol. 10(01), pages 53-65, February.
  5. Boyce, John R., 1996. "An Economic Analysis of the Fisheries Bycatch Problem," Journal of Environmental Economics and Management, Elsevier, vol. 31(3), pages 314-336, November.
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