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Technology And Management In Mauritanian Cephalopod Fisheries

Author

Listed:
  • Diop, Hamady
  • Kazmierczak, Richard F., Jr.

Abstract

If the technology in a multi-species fishery is such that there is jointness in inputs and non-separability between inputs and outputs, then management on a species-by-species basis may lead to unintended outcomes, including over-exploitation of the resource. This study investigates the nature of the technical and economic relationships underlying the 1989-1990 Mauritanian cephalopod fishery by estimating a system of dual output supply functions derived from a generalized Leontief revenue function. Model results indicate the existence of jointness in inputs and non-separability between inputs and outputs in the fishery. Cross-price elasticities indicated a number of substitute and complementary relationships, with these relationships changing in magnitude across years. Taken together, the results suggest that any attempts to economically manage the resource should be based on multi-product production theory, not single-species biological response functions. Besides ruling out single-species management, the dominance of substitute relationships in the Mauritanian cephalopod fishery precludes the use of "key species" management of the entire resource.

Suggested Citation

  • Diop, Hamady & Kazmierczak, Richard F., Jr., 1995. "Technology And Management In Mauritanian Cephalopod Fisheries," Staff Papers 31686, Louisiana State University, Department of Agricultural Economics and Agribusiness.
  • Handle: RePEc:ags:lsustp:31686
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    File URL: http://purl.umn.edu/31686
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    References listed on IDEAS

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    1. C. Duarte, 1992. "Targeted versus nontargeted multispecies fishing," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 2(3), pages 259-281, May.
    2. Lopez, Ramon E, 1985. "Structural Implications of a Class of Flexible Functional Forms for Profit Functions," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 26(3), pages 593-601, October.
    3. Squires, Dale & Kirkley, James, 1991. "Production quota in multiproduct pacific fisheries," Journal of Environmental Economics and Management, Elsevier, vol. 21(2), pages 109-126, September.
    4. Diewert, W E, 1974. "Functional Forms for Revenue and Factor Requirements Functions," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 15(1), pages 119-130, February.
    5. DeVany, Arthur S, et al, 1982. "The Impact of Input Regulation: The Case of the U.S. Dental Industry," Journal of Law and Economics, University of Chicago Press, vol. 25(2), pages 367-381, October.
    6. T. S. Breusch & A. R. Pagan, 1980. "The Lagrange Multiplier Test and its Applications to Model Specification in Econometrics," Review of Economic Studies, Oxford University Press, vol. 47(1), pages 239-253.
    7. Pope, Rulon D., 1982. "To Dual Or Not To Dual?," Western Journal of Agricultural Economics, Western Agricultural Economics Association, vol. 7(02), December.
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    Cited by:

    1. Speir, Cameron & Brozovic, Nicholas, 2006. "Supply Response of Commercial Fishermen and Implications for Management of Invasive Asian Carp," 2006 Annual meeting, July 23-26, Long Beach, CA 21225, American Agricultural Economics Association (New Name 2008: Agricultural and Applied Economics Association).

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