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Fewer Fish for Higher Profits? Price Response and Economic Incentives in Global Tuna Fisheries Management

机译：更少的鱼来获得更高的利润？全球金枪鱼渔业管理中的价格响应和经济激励

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摘要

This paper evaluates industry-wide economic incentives arising from changes in product prices in an industry exploiting a common renewable resource ( tropical tunas) that is regulated via output limits. Changes in prices alter economic incentives by affecting revenues, profits, conservation, and nonmarket public benefits. Economic incentives in industries exploiting common resources have been examined from multiple angles. However, industry level variation in market prices arising from changes in public regulation has not been explored. We analyse the impact on economic incentives due to changes in output limits and market prices through estimation of ex-vessel price and scale flexibilities for imported skipjack and yellowfin in Thailand's cannery market. The unitary scale flexibility, estimated from the General Synthetic Inverse Demand Systems, indicates no loss in revenue and even potential profit increases resulting from lower harvest levels that could arise from lower catch limits. However, for a revenue neutral or positive outcome to be achieved, the three inter-governmental tuna Regional Fisheries Management Organizations, which manage the majority of the yellowfin and skipjack tuna in the Pacific and Indian Oceans, would have to coordinate multilaterally to set the catch limits for both species.
机译：本文评估了一个行业的产品价格变动所产生的全行业经济激励，该行业利用一种受产量限制调节的通用可再生资源（热带金枪鱼）。价格变化通过影响收入，利润，保护和非市场公共利益而改变了经济动机。已从多个角度研究了利用共同资源的行业中的经济激励措施。但是，尚未探讨由于公共法规的变化而导致的行业价格水平的行业差异。我们通过估计泰国罐头市场中进口skip鱼和黄鳍鱼的船前价格和规模灵活性，分析了产量限制和市场价格变化对经济激励的影响。通用综合逆需求系统估计的单位规模灵活性表明，收割限额降低可能会导致收成水平下降，从而不会造成收入损失，甚至可能会增加利润。但是，为了实现收入中立或积极的成果，管理太平洋和印度洋大部分黄鳍金枪鱼和skip鱼的三个政府间金枪鱼区域渔业管理组织必须进行多边协调以捕捞两种物种的限制。

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