Optimally Managing a Stochastic Renewable Resource under General Economic Conditions
AbstractEmpirical evidence indicates that environmental fluctuations have important effects on fisheries production. However, existing analytical solutions of stochastic fisheries models have been produced only under highly simplified economic and biological conditions. The main contribution of this paper is to derive under general conditions a policy function for the management of a stochastic fishery. Our model includes general specifications of demand and cost relationships and a stochastic biological growth function with serially-correlated shocks. Applying methods from the theory of dynamic stochastic general equilibrium modeling and multivariate linear expectational difference equations, we derive a linear approximation of the solution to the model. Our main result is a reduced-form expression for an approximation to optimal escapement, which is shown to be a function of the current stock, past environmental shocks, and model parameters. This theoretically-grounded policy function has intuitive appeal, yields insights into comparative statics, and provides a theoretically-grounded, practical starting point for fisheries management.
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Bibliographic InfoArticle provided by De Gruyter in its journal The B.E. Journal of Economic Analysis & Policy.
Volume (Year): 9 (2009)
Issue (Month): 1 (December)
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Web page: http://www.degruyter.com
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- Vincent Martinet & Michel de Lara & Julio PeÃ±a & HÃ©ctor Ramirez, 2012.
"Risk and Sustainability: Assessing Fisheries Management Strategies,"
ILADES-Georgetown University Working Papers, Ilades-Georgetown University, Universidad Alberto Hurtado/School of Economics and Bussines
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- Vincent Martinet & Michel De Lara & Julio PeÃ±a-Torres & HÃ©ctor RamÃrez Cabrera, 2012. "Risk and Sustainability: Assessing Fisheries Management Strategies," EconomiX Working Papers 2012-11, University of Paris West - Nanterre la DÃ©fense, EconomiX.
- Leizarowitz, Arie & Tsur, Yacov, 2012. "Renewable resource management with stochastic recharge and environmental threats," Journal of Economic Dynamics and Control, Elsevier, Elsevier, vol. 36(5), pages 736-753.
- Poudel, Diwakar & Sandal, Leif K. & Steinshamn, Stein I. & Kvamsdal, Sturla F., 2012. "Do Species Interactions and Stochasticity Matter to Optimal Management of Multispecies Fisheries?," Discussion Papers, Department of Business and Management Science, Norwegian School of Economics 2012/1, Department of Business and Management Science, Norwegian School of Economics.
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