Floods are the costliest disasters in American history—and today, floods are getting both worse and more common. As flooding becomes ever more salient one might expect that public support for flood prevention and mitigation policies would grow, yet we see significant opposition to a wide range of flood policies. We find, across four samples and a range of study designs and measurement strategies, that citizens are more likely to oppose flood mitigation policies when they think the policy in question will harm someone's property rights. This finding has important real-world implications, as many policy proposals aimed at addressing flood disasters, including approaches as diverse as floodwater diversion and elimination of flood insurance subsidies, can infringe on property rights and interests. This study highlights one tension in addressing flood policy in democratically acceptable ways, and also the important effects that framing can have on mass support for flood mitigation policies.

中文翻译：

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产权态度是公众反对美国防洪政策的根源

洪水是美国历史上代价最高的灾难——而今天，洪水变得越来越严重，越来越普遍。随着洪水变得越来越突出，人们可能会期望公众对防洪和减灾政策的支持会增加，但我们看到对广泛的洪水政策的强烈反对。我们发现，在四个样本和一系列研究设计和测量策略中，当公民认为相关政策会损害某人的财产权时，他们更有可能反对防洪政策。这一发现具有重要的现实意义，因为许多旨在解决洪水灾害的政策建议，包括洪水分流和取消洪水保险补贴等多种方法，都可能侵犯财产权益。