Effect of Stock Size and Regulations on Fishing Industry Cost and Structure: The Surf Clam Industry
研究鱼群规模与法规如何影响渔业成本和产业结构，通过大西洋蛤蜊渔业的成本函数估计与模拟，发现最优捕捞需增加船数、降低单船蛤蜊捕捞量并增加海蛤捕捞量。
Abstract Fishing costs are dependent on the size of the fish stock and regulations. Changes in these factors alter the equilibrium industry structure. In a multiproduct fishery, it is not possible to generalize how a reduction in industry catch will be accomplished, through a reduction in catch per vessel or in the number of vessels. Multiproduct cost functions are estimated for the Atlantic clam fishery. Simulations reveal that optimal harvest would be achieved with an increase in the number of vessels and a decrease in the catch per vessel of surf clams and an increase in the catch of ocean quahogs.