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The Impact of Resource Uncertainty and Intergroup Conflict on Harvesting in the Common-Pool Resource Experiment

机译：共池资源实验中资源不确定性和群体间冲突对收获的影响

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How do resource uncertainty and intergroup conflict affect intragroup cooperation over resources in the common pool dilemmas? Does a danger of sudden resource depletion encourage random acts of violence? There are concerns that climate change will escalate conflicts over, and the scarcity of, renewable resources, which are already under threat or in a state of decline. However, we know surprisingly little about the impact of uncertainty on intergroup conflict over resources. In this paper, we present experimental evidence from a mixed design experiment with two-between-group factors: (1) the presence (or absence) of shocks that can destroy a part of resources; and (2) the availability of intergroup conflict.We find that random shocks encourage resource conservation within groups. The positive impact of resource uncertainty on resource conservation disappears in the presence of conflict. It seems that subjects protect themselves from resource exhaustion in the presence of shocks by engaging in conflict and taking resources from the out-group instead of reducing extraction. In general, conflict promotes intragroup cooperation, but this is conditional on the outcomes of past conflicts. In particular, groups harvest more after wins, and only reduce extraction after losing resources in conflict.
机译：资源的不确定性和群体间的冲突如何在共同池困境中影响群体内部对资源的合作？资源突然耗尽的危险是否会助长暴力行为？令人担忧的是，气候变化将加剧已经受到威胁或处于衰退状态的可再生资源的冲突和稀缺性。但是，对于不确定性对资源之间的群体间冲突的影响，我们知之甚少。在本文中，我们提供了来自具有两个组间因素的混合设计实验的实验证据：（1）可能破坏一部分资源的冲击的存在（或不存在）； （2）群体间冲突的可用性。我们发现随机冲击会促进群体内部的资源节约。在存在冲突的情况下，资源不确定性对资源保护的积极影响就消失了。受试者似乎可以通过参与冲突和从外部群体中获取资源而不是减少提取来保护自己免受资源耗尽的冲击。一般而言，冲突会促进集团内部的合作，但这取决于过去冲突的结果。特别是，团体在获胜后会收获更多，而只有在冲突中失去资源后才减少抽取。

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