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首页> 外文期刊>Journal of the Association of Environmental and Resource Economists >Quasi-Experimental Evidence on the 'Rights to Fish': The Effects of Catch Shares on Fishermen's Days at Sea
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Quasi-Experimental Evidence on the 'Rights to Fish': The Effects of Catch Shares on Fishermen's Days at Sea

机译：关于“捕鱼权”的准实验证据：渔获量对海上渔民日的影响

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摘要

This paper investigates whether rights-based management in fisheries ends the "race to fish." The staggered introductions of catch shares in the Alaska pollock and Pacific hake fisheries—neighboring regional fisheries that are the largest and sixth largest fishery by volume in the United States, respectively—provide a unique natural experiment for isolating the impact of "catch shares." Difference-in-difference-in-differences estimations, combined with vessel fixed effects, indicate that catch shares are associated with an increase in the number of days that a harvester spends at sea engaging in fishing activities, which implies a slowing of fishing effort, ceteris paribus. For the Pacific hake fishery, participation in the pollock fishery is a negative predictor of a harvester's days at sea in the target fishery. In the initial two years when the hake fishery was rationalized before the pollock fishery the pollock fishery served as a derby alternative for hake harvesters. Results also show that pollock and hake harvesters respond to changing economic conditions: fish or fish product prices are positive predictors of days at sea. For the Pacific hake catcher-processor fleet, an estimated increase in days at sea per ton of catch suggests that a harvester's fishing intensity has also slowed as a result of catch shares.
机译：本文研究了渔业中基于权利的管理是否结束了“捕捞种族”。阿拉斯加狭鳕和太平洋无须鳕渔业中捕捞份额的错开介绍—毗邻的区域渔业分别是美国数量上最大和第六大的渔业—为隔离“捕捞份额”的影响提供了独特的自然实验。差异中的差异估计与船只的固定效应相结合，表明捕获量与捕捞者在海上从事捕鱼活动的天数增加有关，这意味着捕鱼工作的减慢， ceteris paribus。对于太平洋无须鳕渔业，参与狭鳕渔业对目标渔业中收割者在海上的日子是负面的预测。在鳕鱼渔业合理化之前的两年中，在鳕鱼渔业之前，鳕鱼渔业是鳕鱼收割者的德比替代品。结果还显示，鳕鱼和无须鳕的收割者对不断变化的经济状况做出了响应：鱼或鱼产品价格是海上天数的积极预测指标。对于太平洋无须鳕捕捞加工商船队，估计每吨捕捞的出海天数增加表明，由于捕捞量的增加，收割机的捕捞强度也有所降低。

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