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The Impact of Transferable Fishing Quotas on Cost, Price, and Season Length 可转让捕鱼配额对成本、价格和季节长度的影响
IF 2.9 3区 经济学 Q1 Social Sciences Pub Date : 2021-12-03 DOI: 10.1086/716728
R. Pincinato, F. Asche, A. Cojocaru, Yaqin Liu, K. Roll
Individual fishing quotas give fishers incentives to reduce costs (or increase productivity), lengthen the harvest season and increase price by improving catch quality. To what extent each of these three effects will be present when the management system is changed in a specific fishery depends on the characteristics of the fishery and on themarkets and supply chains served. This paper uses a difference-in-differences approach to investigate the impact on all three outcomes of a regulatory change that introduced individual fishing quotas with some transferability foragroupofcoastal vessels in theNorwegianwhitefishfisheries. The results indicatehigherex-vessel prices after the regulatory change, which imply higher quality of the fish landed, but show no significant extension of the fishing season or reduction of the average cost.
个人捕鱼配额激励渔民降低成本(或提高生产力),延长收获季节,并通过提高捕获质量来提高价格。当特定渔业的管理系统发生变化时,这三种影响的程度取决于渔业的特点以及所服务的市场和供应链。本文使用差异中的差异方法来调查监管变化对所有三个结果的影响,该变化引入了挪威白鱼渔业中的个别捕捞配额和一些可转移性觅食群体。结果表明,监管变化后,船只价格上涨,这意味着上岸的鱼的质量更高,但没有显示捕鱼季节的显著延长或平均成本的降低。
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引用次数: 11
Comparing Pollution Where You Live and Play: A Hedonic Analysis of Enterococcus in the Long Island Sound 比较你生活和玩耍的地方的污染:长岛湾肠球菌的特征分析
IF 2.9 3区 经济学 Q1 Social Sciences Pub Date : 2021-12-03 DOI: 10.1086/717265
M. Kung, Dennis Guignet, P. Walsh
Hedonic property value methods typically examine the effect of water quality on home prices by focusing on waters nearest a home. While this captures any aesthetic values households may hold for water quality improvements, it may not fully reflect recreational values, particularly for nearby residents that do not live on the waterfront. This study is the first to compare the conventional approach of examining how property prices vary with the quality of waters closest to a home, versus water quality levels at the closest point of access for recreation (i.e., the beach). Using spatial econometric models, we conduct a hedonic analysis of residences within five kilometers of the Long Island Sound. Due to an aging infrastructure, high levels of precipitation often lead to sewage overflows, resulting in high counts of enterococcus – a bacterial indicator of fecal pollution. We also estimate the effect of subsequent beach closures, which we posit as an alternative and more salient signal of local water quality to residents. In line with previous literature, we find that enterococcus levels at waters nearest a home negatively affect home prices within 1 kilometer. However, this effect becomes insignificant when controlling for levels at the nearest beach. In contrast, enterococcus at the closest beach yields a negative 0.03% to 0.02% elasticity that extends 2.5 km. Controlling for beach closures suggests negative effects as far as 3.5 km from beaches. Our findings demonstrate that the impact of water quality on home prices may extend further than previously suggested by the literature, at least at large iconic waterbodies like the Sound.
享乐财产价值方法通常通过关注离家最近的水域来检查水质对房价的影响。虽然这反映了家庭对水质改善的审美价值,但它可能无法完全反映娱乐价值,特别是对于不住在海滨的附近居民来说。这项研究首次比较了传统的方法,即房地产价格是如何随着离住宅最近的水域质量而变化的,而不是最近的娱乐场所(即海滩)的水质水平。利用空间计量模型,我们对长岛海湾五公里范围内的住宅进行了享乐分析。由于基础设施老化,高水平的降水经常导致污水溢出,导致肠球菌(粪便污染的细菌指标)数量高。我们还估计了随后海滩关闭的影响,我们认为这是对居民的另一种更显著的当地水质信号。与先前的文献一致,我们发现离家最近的水域的肠球菌水平对1公里内的房价产生负面影响。然而,当控制最近海滩的水平时,这种影响就变得微不足道了。相反,肠球菌在最近的海滩产生负0.03%至0.02%的弹性,延伸2.5公里。控制海滩关闭意味着对离海滩3.5公里远的地方产生负面影响。我们的研究结果表明,水质对房价的影响可能比以前的文献所建议的要大得多,至少在像Sound这样的大型标志性水体中是这样。
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引用次数: 2
A Safer Catch? The Role of Fisheries Management in Fishing Safety 更安全的捕获?渔业管理在捕鱼安全中的作用
IF 2.9 3区 经济学 Q1 Social Sciences Pub Date : 2021-12-03 DOI: 10.1086/716856
Lisa Pfeiffer, Tess Petesch, Thamanna Vasan
Commercial fishers are constantly exposed to many risk factors, making it a dangerous occupation. Fisheries management that limits access and catches can give rise to well-known stock and rule-of-capture externalities knownas the “race tofish.”Thismarket failuredissipates rents andcan leadfishers to takeonadditional risks such as fishing in poor weather, overloading vessels, or delaying maintenance to outcompete others. Rights-based management is expected to reduce the incentives to take on additional risk. Using a large dataset of fishers from around the United States, we empirically estimate the effects of individual fishing quota (IFQ) programs on one important risk factor: the decision to fish in poor weather. We find that risk-taking behavior generally decreases under IFQs, but themagnitudeof the shift differs by fishery, andweexplore potential drivers of these differences.
商业渔民经常面临许多风险因素,这使其成为一种危险的职业。限制准入和渔获量的渔业管理可能会产生众所周知的种群和捕获规则外部性,即“捕鱼竞赛”。这种市场失灵会消耗租金,并可能导致渔民承担额外的风险,如在恶劣天气下捕鱼、船只超载或延迟维护以击败其他人。基于权利的管理有望减少承担额外风险的动机。使用美国各地渔民的大型数据集,我们实证估计了个人捕鱼配额(IFQ)计划对一个重要风险因素的影响:在恶劣天气下捕鱼的决定。我们发现,在IFQ下,冒险行为通常会减少,但这种转变的程度因渔业以及探索这些差异的潜在驱动因素而异。
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引用次数: 6
The Option Price of Recreational Bag Limits and the Value of Harvest 休闲袋限额期权价格与收益价值
IF 2.9 3区 经济学 Q1 Social Sciences Pub Date : 2021-12-02 DOI: 10.1086/717284
D. Carter, C. Liese, Sabrina J. Lovell
Daily harvest limits are a common form of regulation in consumptive recreation. We show that angler willingness to pay for a bag limit change is an option price and show how it relates to the value of harvest changes. Specifically, if expected utility theory holds, then option prices for one-fish bag limit increments along with catch distributions can be used to “recover” the compensating surplus (CS) for harvest increments. We also show that further assumptions (e.g., risk neutrality) are necessary to recover the CS for harvest from option prices for larger bag limit increments. We demonstrate our method using a choice experiment and catch data for Gulf of Mexico anglers. This work gives analysts a way to adapt the information at hand to the policy question. For example, when CS estimates are needed for an ex post analysis, but only option prices are available, our work shows how to obtain the required CS information.
每日收获限制是消费娱乐中一种常见的监管形式。我们表明,垂钓者愿意为袋限变化付费是一种期权价格,并展示了它与收获变化的价值之间的关系。具体来说,如果预期效用理论成立,那么一个鱼袋限额增量的期权价格以及渔获量分布可以用来“恢复”捕捞增量的补偿盈余(CS)。我们还表明,进一步的假设(例如,风险中性)对于从更大袋限额增量的期权价格中恢复收获CS是必要的。我们使用墨西哥湾垂钓者的选择实验和捕获数据来演示我们的方法。这项工作为分析人员提供了一种方法,使手头的信息适应政策问题。例如,当事后分析需要CS估计,但只有期权价格可用时,我们的工作展示了如何获得所需的CS信息。
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引用次数: 4
The Economics of Fishing. By Rögnvaldur Hannesson. Newcastle upon Tyne, UK: Agenda Publishing Limited, 2021. ISBN 978-1-78821-344-8. 渔业经济学。作者:Rögnvaldur Hannesson。英国泰恩河畔纽卡斯尔:议程出版有限公司,2021年。是978-1-78821-344-8。
IF 2.9 3区 经济学 Q1 Social Sciences Pub Date : 2021-11-12 DOI: 10.1086/716855
J. Dresdner
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引用次数: 0
Prospects for Small-Scale Aquaculture in Chile: User Rights and Locations 智利小型水产养殖的前景:用户权利和地点
IF 2.9 3区 经济学 Q1 Social Sciences Pub Date : 2021-10-01 DOI: 10.1086/715548
H. Albers, Carlos Chávez, J. Dresdner, Mauricio Leiva
Chile’s extended allocation of marine user rights aims to reduce overextraction of marine resources. New user rights promote small-scale aquaculture both to increase coastal incomes and to encourage fishers to transition to other livelihoods. Some activities prove profitable only in particular biogeographic settings, such as open ocean or estuaries. We examine a coastal region of Chile to investigate the response of households to these marine-based activities and rights. Because residents report a low propensity to move, we analyze the drivers of household activity choices conditioned on their biogeographic zone and user rights. In a second step, we find that variability in income across households is explained by household characteristics, the chosen economic activities, and geographical location. In policy experiments based on these regression results, we find that the adjustment to new policies presents challenges for inducing fishers to undertake small-scale aquaculture, without imposing short-run income losses.
智利扩大海洋使用权的分配旨在减少对海洋资源的过度开发。新的使用权促进了小型水产养殖,既增加了沿海地区的收入,又鼓励渔民转向其他生计。一些活动证明只有在特定的生物地理环境中才有利可图,例如公海或河口。我们调查了智利的一个沿海地区,以调查家庭对这些基于海洋的活动和权利的反应。由于居民的迁移倾向较低,我们分析了以他们的生物地理区域和用户权利为条件的家庭活动选择的驱动因素。在第二步中,我们发现不同家庭收入的差异可以通过家庭特征、所选择的经济活动和地理位置来解释。在基于这些回归结果的政策实验中,我们发现,对新政策的调整对诱导渔民在不造成短期收入损失的情况下进行小规模水产养殖提出了挑战。
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引用次数: 2
Regrouping to Reduce Overfishing: Evidence from a Series of Lab-in-the-Field Experiments in Mexico 重组以减少过度捕捞:来自墨西哥一系列野外实验室实验的证据
IF 2.9 3区 经济学 Q1 Social Sciences Pub Date : 2021-10-01 DOI: 10.1086/715442
A. Leibbrandt, Sergio Puerto, M. Vélez
Overfishing has become a major global issue that endangers ecosystems and the livelihoods of millions of people. Weak enforcement and illicit fishing behaviors limit the effectiveness of institutional arrangements designed to curb overfishing. In this paper, we designed and tested a series of potential interventions to reduce overexploitation driven by illegal fishing. We use surveys, interviews, and common pool resource experiments to investigate the behavior of Mexican fishermen in the upper part of the Gulf of Baja California. We find that resource exploitation can be reduced using a mechanism that regroups fishermen according to their past fishing exploitation levels. More precisely, we observe that the announcement of this mechanism and the actual regrouping reduce common pool exploitation, regardless of group composition. Further experimental evidence shows that the regrouping intervention also achieves the desired outcomes in environments with informational asymmetries or regrouping imperfections.
过度捕捞已经成为一个重大的全球性问题,危及生态系统和数百万人的生计。执法不力和非法捕捞行为限制了旨在遏制过度捕捞的体制安排的效力。在本文中,我们设计并测试了一系列潜在的干预措施,以减少非法捕鱼造成的过度开发。我们使用调查、访谈和公共池资源实验来调查下加利福尼亚湾上部墨西哥渔民的行为。我们发现,利用一种根据渔民过去的渔业开发水平对其进行重组的机制可以减少资源开发。更确切地说,我们观察到,无论分组组成如何,该机制的宣布和实际重组都会减少公共池的开发。进一步的实验证据表明,在信息不对称或重组不完善的环境中,重组干预也能达到预期的结果。
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引用次数: 1
Subsidies—Help or Hurt? A Study from Vietnamese Fisheries 补贴——帮助还是伤害?越南渔业研究
IF 2.9 3区 经济学 Q1 Social Sciences Pub Date : 2021-10-01 DOI: 10.1086/715358
Thuy Thi Thanh Pham, O. Flaaten, L. T. Nguyen, N. Vu
Subsidies are part of the set of management tools that governments apply to modernize their fishing fleets and enable them to engage in offshore and international fisheries. Research has shown that subsidies often lead to overcapacity and overfishing, resulting in the depletion of fish stocks. A few studies, however, have found some positive effects for particular subsidies. In this paper, we investigate a credit-linked subsidy scheme in Vietnam, which seems to be justified on the basis of economic, social, and environmental considerations. Both propensity score matching and endogenous switching regression methods are employed for analysis. The results show that the subsidies have had a positive effect on fishermen’s profitability, mainly because of increased revenue rather than reduced cost. However, the subsidies have benefited the owners of only the biggest vessels, and inefficiency in subsidized vessels may threaten resources and profitability in the long term.
补贴是政府用于使其渔船队现代化并使其能够从事近海和国际渔业的一套管理工具的一部分。研究表明,补贴往往导致产能过剩和过度捕捞,导致鱼类资源枯竭。然而,一些研究发现了某些补贴的一些积极影响。在本文中,我们研究了越南的一项信贷挂钩补贴计划,该计划似乎在经济、社会和环境考虑的基础上是合理的。采用倾向得分匹配和内生切换回归两种方法进行分析。结果表明,补贴对渔民的盈利能力产生了积极的影响,主要是因为增加了收入,而不是降低了成本。然而,补贴只使最大的船东受益,从长远来看,补贴船舶的效率低下可能会威胁到资源和盈利能力。
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引用次数: 3
Economics of Marine Resources in the Global South—Meeting the Challenge of Agenda 2030 全球南方海洋资源经济学——应对《2030年议程》的挑战
IF 2.9 3区 经济学 Q1 Social Sciences Pub Date : 2021-10-01 DOI: 10.1086/715914
Carlos Chávez, H. Eggert, M. Reimer
In this introduction to the special issue, “Economics of Marine Resources in the Global South,” we address the current challenges for sustainable management of aquaculture and capture fisheries in developing and transitional countries. We note that the collective action problem remains a major challenge for capture fisheries in the Global South. While aquaculture has been a fast-moving food sector for half a century and provides disadvantaged people in the Global South with low-cost, high-quality protein, negative externalities remain an industry-wide challenge. We provide a background to aquaculture and fisheries economics relevant for the Global South, using the six articles contained in this issue as a point of departure to discuss six of the 10 targets that are formulated in connection with the United Nation’s Sustainable Development Goal 14 (SDG 14): conserve and sustainably use the oceans, seas, and marine resources. Bringing together the challenges of meeting SDG 14 and the contributions of this special issue, we discuss an agenda for future research for those interested in the economics analysis of fisheries and aquaculture relevant to the Global South context.
在“全球南方海洋资源经济学”特刊的引言中,我们讨论了发展中国家和转型期国家水产养殖和捕捞渔业可持续管理的当前挑战。我们注意到,集体行动问题仍然是全球南方捕捞渔业面临的重大挑战。半个世纪以来,水产养殖一直是一个快速发展的食品行业,为全球南方的弱势群体提供了低成本、高质量的蛋白质,但负外部性仍然是全行业的挑战。我们提供了与全球南方相关的水产养殖和渔业经济学的背景,以本期中的六篇文章为出发点,讨论了根据联合国可持续发展目标14(SDG 14)制定的10个目标中的六个:保护和可持续利用海洋和海洋资源。结合实现可持续发展目标14的挑战和本期特刊的贡献,我们为那些对与全球南方背景相关的渔业和水产养殖的经济学分析感兴趣的人讨论了未来研究的议程。
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引用次数: 5
Improving Utilization of the Queen Conch (Aliger gigas) Resource in Colombia 提高哥伦比亚皇后螺(Aliger gigas)资源利用
IF 2.9 3区 经济学 Q1 Social Sciences Pub Date : 2021-10-01 DOI: 10.1086/715522
Jorge Marco, D. Valderrama, M. Rueda, Maykol Rodríguez-Prieto
A bioeconomic model was developed to investigate optimal exploitation strategies for the queen conch (Aliger gigas) resource in the Colombian Caribbean. Ecological and economic indicators substantially improved when the status quo management system based on sustained annual harvesting of the resource at a rate of 8% of the total exploitable biomass was replaced with a rotational harvesting scheme whereby fishing was conducted at a higher exploitation rate (30%), following a four-year closure period. Closures allowed queen conch biomass to recover and accumulate undisturbed, leading to an 11% increase in the average standing density of adult conchs and a 26% increase in the net present value of the fishery, as compared with the status quo scenario. Multiple sources of improvement associated with rotation of fishing areas were identified, such as the harvesting of larger quantities of conch meats and pearls as well as reduced fishing costs. In addition to an informed assessment of the economic potential of the fishery under rotational management, the model provides a useful benchmark to estimate the gains associated with further reductions in illegal, unreported, and unregulated fishing, which has brought the fishery to the brink of collapse in recent years.
建立了一个生物经济模型来研究哥伦比亚加勒比地区皇后螺资源的最佳开发策略。在四年休渔期之后,以每年持续捕捞占总可利用生物量8%的资源为基础的现有管理制度被以更高的捕捞率(30%)进行捕捞的轮作捕捞计划所取代,生态和经济指标得到了显著改善。关闭后的海螺生物量得以恢复和不受干扰地积累,与现状相比,成年海螺的平均站立密度增加了11%,渔业净现值增加了26%。确定了与渔区轮作有关的多种改进来源,例如收获更多的海螺肉和珍珠以及降低捕捞成本。除了对轮作管理下渔业的经济潜力进行知情评估外,该模型还提供了一个有用的基准,用于估计进一步减少非法、未报告和无管制捕鱼所带来的收益。近年来,非法、未报告和无管制捕鱼已使渔业濒临崩溃的边缘。
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引用次数: 1
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Marine Resource Economics
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