This paper presents findings from an experimental study on the harvesting behaviour of a set of fishers on Colombia’s Pacific coast under both the presence and absence of Territorial Use Rights for Fisheries (TURF). The experiments are common-pool resource (CPR)-games where participants undertake harvesting decisions under a baseline scenario and two subsequent treatments (communication and self-regulation). The data are analysed using different statistical models. We find that fishers under TURF tend to coordinate their efforts when no treatments are introduced into the experiment. However, once treatments are introduced, we observe that self-regulation outperforms communication in reducing harvest levels. This situation can be viewed as a consequence of the internal struggles between TURF fishers, highlighting the need for regulation. We conclude that a TURF designation on its own is not sufficient to shape the preferences of the users of a CPR and needs to be accompanied by regulation to encourage coordination among players.

本文介绍了一项实验研究的结果，该实验研究了存在和不存在渔业领土使用权（TURF）的情况下哥伦比亚太平洋沿岸一组渔民的捕捞行为。实验是公共池资源（CPR）游戏，参与者在基准情景下进行收获决策，并采取两种后续处理方式（交流和自我调节）。使用不同的统计模型分析数据。我们发现，在没有引入任何治疗方法的情况下，TURF下的渔民倾向于协调他们的工作。但是，一旦采用了治疗方法，我们会发现自我调节在降低收成水平方面优于交流。这种情况可以看作是TURF渔民之间内部斗争的结果，突显了监管的必要性。