In a general equilibrium model, this paper examines how the rise of aquaculture and the decline of wild fish stocks are related. Two factors, population growth and technological improvement in aquaculture, have been studied in an aquaculture restricted entry case and an aquaculture free entry case. Both factors raise aquaculture production, while changes in wild fish stocks hinge on entry conditions. In the restricted entry case, population growth reduces wild fish stocks, but technological progress in aquaculture raises them. In contrast, in the free entry case, only technological advance in aquaculture affects and raises wild fish stocks.
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Paper provided by Department of Economics, University of Calgary in its series Working Papers with number
2007-17.
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Find related papers by JEL classification: Q22 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation - - - Fishery D50 - Microeconomics - - General Equilibrium and Disequilibrium - - - General
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