A relevant question in fishery management is to what extent individual transferable quotas and effort quotas (ITQs/ITEQs) can contribute to higher efficiency and net returns as well as foster resource sustainability. To better account for factors that systematically affect efficiency of fishing companies within a complex institutional environment, two stochastic frontier semiparametric models treat unobserved heterogeneity as a finite mixture or discrete approximation to continuous parameter variation by adjusting for sample selection and latent classes, respectively. Assuming profitability-constrained, revenue-maximising strategies and based on a panel of Falkland Islands fisheries over the period 2003–14, both models suggest separate frontiers relative to revenues and limited to selection-corrected model costs. The hypothesis of frontier-enhancing effects of the new ITQ/ITEQ regime is supported for most—albeit not all—fishing companies. Based on model results, revenue efficiency gains are achievable by encouraging, when feasible, vessel ownership and larger arrangements between quota holders and joint-venture companies. Regression results of latent class production frontier models for southern hake catches similarly suggest heterogeneity across finfish vessels and widespread—though not uniform—frontier-enhancing effects of the new fishery regime.

中文翻译：

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具有选择性和潜在类别的使用费和效率边界：福克兰群岛渔业

渔业管理中的一个相关问题是个人可转让配额和努力量配额 (ITQ/ITEQ) 在多大程度上有助于提高效率和净收益以及促进资源可持续性。为了更好地解释在复杂制度环境中系统地影响渔业公司效率的因素，两个随机前沿半参数模型通过分别调整样本选择和潜在类别，将未观察到的异质性视为对连续参数变化的有限混合或离散近似。假设盈利能力受限、收入最大化战略并基于 2003-14 年期间福克兰群岛渔业小组，这两个模型都建议相对于收入的不同边界，并且仅限于选择校正的模型成本。大多数（尽管不是全部）渔业公司支持新 ITQ/ITEQ 制度的前沿增强效应的假设。根据模型结果，在可行的情况下，通过鼓励船舶所有权以及配额持有人与合资公司之间的更大安排，可以实现收入效率收益。南部鳕鱼捕捞的潜在类生产前沿模型的回归结果同样表明，有鳍鱼的船只存在异质性，并且新渔业制度的前沿增强效应广泛但不统一。