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Sushi or fish fingers? Seafood diversity, collapsing fish stocks, and multi-species fishery management

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  • Quaas, Martin F.
  • Requate, Till

Abstract

We present a model of a multi-species fishery and show that (i) consumer preferences for seafood diversity may trigger a sequential collapse of fish stocks under open-access fishery, (ii) the stronger the preferences are for diversity the higher is the need for coordinated multi-species regulation, (iii) second-best optimal management of only one (or a few) species is less strict than socially optimal management of the same species. Finally, (iv) myopic regulation of one species, ignoring spill-overs to other species, may cause depletion of other stocks that would not be depleted under open access.

Suggested Citation

  • Quaas, Martin F. & Requate, Till, 2012. "Sushi or fish fingers? Seafood diversity, collapsing fish stocks, and multi-species fishery management," Economics Working Papers 2012-03, Christian-Albrechts-University of Kiel, Department of Economics.
  • Handle: RePEc:zbw:cauewp:201203
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    References listed on IDEAS

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    1. Opsomer Jean-Didier & Conrad Jon M., 1994. "An Open-Access Analysis of the Northern Anchovy Fishery," Journal of Environmental Economics and Management, Elsevier, vol. 27(1), pages 21-37, July.
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    3. Kasulo, Victor & Perrings, Charles, 2006. "Fishing down the value chain: Biodiversity and access regimes in freshwater fisheries -- the case of Malawi," Ecological Economics, Elsevier, vol. 59(1), pages 106-114, August.
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    5. Anders Skonhoft & Niels Vestergaard & Martin Quaas, 2012. "Optimal Harvest in an Age Structured Model with Different Fishing Selectivity," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 51(4), pages 525-544, April.
    6. Kjell G. Salvanes, 1997. "Market Delineation and Demand Structure," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 79(1), pages 139-150.
    7. Chiang, Fu-Sung & Lee, Jonq-Ying & Brown, Mark G., 2001. "The Impact Of Inventory On Tuna Price: An Application Of Scaling In The Rotterdam Inverse Demand System," Journal of Agricultural and Applied Economics, Southern Agricultural Economics Association, vol. 33(3), pages 1-9, December.
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    9. Chiang, Fu-Sung & Lee, Jonq-Ying & Brown, Mark G., 2001. "The Impact of Inventory on Tuna Price: An Application of Scaling in the Rotterdam Inverse Demand System," Journal of Agricultural and Applied Economics, Cambridge University Press, vol. 33(3), pages 403-411, December.
    10. Tahvonen, Olli, 2009. "Economics of harvesting age-structured fish populations," Journal of Environmental Economics and Management, Elsevier, vol. 58(3), pages 281-299, November.
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    More about this item

    Keywords

    marine biodiversity; fishery economics; product differentiation;
    All these keywords.

    JEL classification:

    • Q22 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation - - - Fishery
    • Q57 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Ecological Economics
    • Q21 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation - - - Demand and Supply; Prices

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