A search-matching model of fisheries

Abstract : This paper studies the implications of fi…sh search activities on the working of …fisheries. We develop a simple …shery matching model in which …rms’ stochastic search for …sh requires speci…fic resources. The equilibrium level of anthropic pressure (number of empty ves- sels/conserved …sh stock) exerted by …rms on the …sh stock is derived from their individual pro…t maximizing behavior. Anthropic pressure determines in turn the rate at which vessels fi…nd fi…sh i.e. catchability, which is therefore endogenous in our model, and the stock conserva- tion (uncaught …sh) rate, through the dynamic equation of the latter. We then show that under open access, equilibrium anthropic pressure, …fishing effort and the conservation rate heavily depend on search costs. An empirical study of the French Guiana shrimp …shery con…rms the ability of the model to reproduce empirical data.
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Nicolas Sanz, Bassirou Diop. A search-matching model of fisheries. 2015. ⟨hal-01228851⟩

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