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基于权利的渔业管理的分配结果。

The distributional outcomes of rights-based management in fisheries.

机构信息

School of Sustainability, Arizona State University, Tempe, AZ 85287;

School of Sustainability, Arizona State University, Tempe, AZ 85287.

出版信息

Proc Natl Acad Sci U S A. 2022 Jan 11;119(2). doi: 10.1073/pnas.2109154119.

Abstract

Fisheries managers have increasingly adopted rights-based management (i.e., "catch shares" or "individual transferable quotas" [ITQs]) to address economic and biological management challenges under prior governance regimes. Despite their ability to resolve some of the symptoms of the tragedy of the commons and improve economic efficiency, catch shares remain controversial for their potentially disruptive social effects. One criticism is that the benefits of rights-based reforms are unequally distributed across vessels and between fishery participants (e.g., crew and hired captains) and that stakeholders that do not receive an allocation of harvest rights may see their remuneration decrease. Yet, empirically assessing these claims is difficult in almost all ITQs due to poor availability of longitudinal cost, earnings, and employment data. This paper evaluates these claims using vessel-level data to characterize impacts of a long-established ITQ program for Alaskan crab fisheries on the level and distribution of payments to claimant groups. We find that the share of vessel proceeds accruing to captains, crew, and vessel owners declined under the catch-share regime to make room for new payments to quota owners. Average daily payments to captains, crew, and vessel owners declined, albeit slightly, yet retained their pre-ITQ premia relative to compensation in other sectors. However, inequality in payments to workers and vessel owners declined after ITQs, as did the interseasonal volatility in compensation to workers, a measure of financial risk. Finally, we find that consolidation-induced increases in leasing costs have had little effect on workers' remuneration, but have reduced returns to vessel ownership.

摘要

渔业管理者越来越多地采用基于权利的管理(即“捕捞权”或“可转让个体配额”[ITQs]),以解决先前治理制度下的经济和生物管理挑战。尽管它们能够解决公地悲剧的一些症状并提高经济效率,但捕捞权仍然存在争议,因为它们可能会产生破坏性的社会影响。一种批评是,基于权利的改革的好处在船只之间以及渔业参与者(例如船员和雇佣船长)之间分配不均,没有获得收获权分配的利益相关者可能会看到他们的薪酬下降。然而,由于几乎所有 ITQs 中长期成本、收益和就业数据的可用性较差,因此很难从经验上评估这些说法。本文使用船只层面的数据来评估长期存在的阿拉斯加螃蟹渔业 ITQ 计划对索赔群体的支付水平和分配的影响,从而评估这些说法。我们发现,在捕捞权制度下,船长、船员和船只所有者获得的船只收益份额下降,为配额所有者创造了新的支付空间。尽管船长、船员和船只所有者的平均日支付额略有下降,但相对于其他部门的薪酬,他们仍然保留了 ITQ 之前的溢价。然而,工人和船只所有者的支付不平等程度在 ITQs 之后下降,工人的补偿季节性波动也下降,这是金融风险的一个衡量标准。最后,我们发现,租赁成本的增加导致的合并对工人的薪酬影响不大,但降低了船只所有权的回报。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c7d/8764686/bf20e8ce6be3/pnas.2109154119fig01.jpg

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