Productivity and Management of Renewable Resources: Why More Efficient Fishing Fleets Should Fish Less
分析了生产率提升对最优渔业管理的影响，发现当捕捞成本与资源存量无关且存量低于稳态时，提高生产率应减少捕捞量；若成本与存量相关，则存在一个存量区间需减少捕捞，但接近最优稳态时则应增加捕捞。
Abstract This article analyses the effect of productivity improvements on optimal fisheries management. It is shown that when harvest costs are independent of resource stock and the stock is below its steady state level, then for any given stock it is optimal to reduce harvest levels in response to a productivity increase unless optimal harvest rate is already zero. If harvest costs are stock dependent this result is modified; for stock dependent harvest costs there exists an interval of stock sizes below the steady state where it is optimal to reduce the harvest rate for any given stock size whereas if the harvest rate is close to an economically optimal steady state it is optimal to increase the harvest rate.