Provision of adequately valued individual transferable quotas and effort quotas is essential for sustainability and profitability of a fishery. Despite possible misleading consequences for policy-making, the extent to which fishery inefficiency estimates and rankings may depend on the model used, has received less attention. This paper first reviews determinants of fishers’ behaviour under regulated harvesting, with the Falkland Islands as focus case. Next, a ‘best scenario’ long-term equilibrium framework is outlined, under a regime of transferable effort quotas and fishing seasons as implemented in the Islands, followed by an overview of panel data stochastic frontier models, with specific regard to fisheries. To test hypotheses and impact of a mainly ITEQ-based regime for Falkland fisheries, two parametric and one semiparametric model rely on different assumptions on frontiers and inefficiency scores. Relative to companies operating in Falkland seas, regression estimates highlight the relevance of economies of scale, vessel ownership, and climatic factors among others, with improved cost effectiveness, and revenue efficiency frontier-enhancing/inefficiency-reducing effects, following the implementation of the new regime. Within either modelling approach, inefficiency differs marginally across regression specifications, but mismatches in levels and rankings emerge between parametric and semiparametric models. Relative to southern hake catches by Falkland trawlers, the semiparametric approach suggests upward shifts in output frontiers under the new fishery regime, with inefficiency scores substantially unaltered between two functional specifications.

提供足够价值的个人可转让配额和努力配额对于渔业的可持续性和盈利能力至关重要。尽管可能对决策产生误导性后果，但渔业效率低下的估计和等级可能在多大程度上取决于所使用的模型，但受到的关注却较少。本文首先以福克兰群岛为重点案例，回顾了在规则捕捞条件下渔民行为的决定因素。接下来，在群岛实施的可转移努力配额和捕鱼季节制度下，概述了“最佳方案”长期均衡框架，然后概述了专门针对渔业的面板数据随机前沿模型。为了检验福克兰渔业主要基于ITEQ的制度的假设和影响，两个参数模型和一个半参数模型依赖于对边界和效率低下分数的不同假设。相对于在福克兰海中运营的公司，回归估算突出了规模经济，船舶所有权和气候因素等相关因素，在实施新的实施方案后，具有更高的成本效益以及收益效率，边界提高/效率降低的效果政权。在这两种建模方法中，效率差异在回归规范之间都略有不同，但是参数和半参数模型之间的级别和排名不匹配。相对于福克兰拖网渔船的南部无须鳕捕获量，半参数方法表明，在新的渔业制度下，输出边界的上升，