The Contribution of Unmeasurable Inputs to Fisheries Production: An Analysis of Technical Efficiency of Fishing Vessels in the English Channel
通过估计随机前沿生产函数，分析英吉利海峡底拖网渔船效率变化，发现不可测因素（如船长和船员技能）解释了约65%的效率差异和9%的渔获量差异，而“运气”解释了约11%的渔获量差异。
Abstract Variations in the efficiency of demersal trawlers operating in the English Channel were examined through the estimation of a stochastic frontier production function. The most important measurable factor affecting efficiency was the age of the vessel. However, unmeasurable factors accounted for about 65% of the variation in efficiency, and as much as 9% of the total variation in catches between boats. It is postulated that most of this variation was due to differences in skipper and crew skill. In contrast, “luck” accounted for around 11% of the variation in catches between boats.