Scandinavian Working Papers in Economics
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Department of Business and Management Science, Norwegian School of Economics (NHH) Discussion Papers, Department of Business and Management Science, Norwegian School of Economics (NHH)

No 2009/6:
Continuous harvesting costs in sole-owner fisheries with increasing marginal returns

Jose M. Maroto (), Manuel Moran (), Leif K. Sandal () and Stein I. Steinshamn ()

Abstract: We develop a bioeconomic model to analyze a sole-owner fishery with fixed costs as well as a continuous cost function for the generalized Cobb-Douglas production function with increasing marginal returns to effort level. On the basis of data from the North Sea herring fishery, we analyze the consequences of the combined effects of increasing marginal returns and fixed costs. We find that regardless of the magnitude of the fixed costs, cyclical policies can be optimal instead of the optimal steady state equilibrium advocated in much of the existing literature. We also show that the risk of stock collapse increases significantly with increasing fixed costs as this implies higher period cycles which is a quite counterintuitive result as higher costs usually are considered to have a conservative effect on resources.

Keywords: Bioeconomic modelling; Stock collapse; Fixed costs; Pulse fishing; Cyclical dynamics; Increasing marginal returns; (follow links to similar papers)

JEL-Codes: Q57; (follow links to similar papers)

36 pages, September 15, 2009

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