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Assessing the Economic Benefits of Flood Defenses: A Repeat-Sales Approach

机译:评估防洪的经济效益:重复销售方法

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In this article we identify the impact of the construction of flood defenses on property prices using a difference-in-differences repeat-sales methodology. Our data set contains information on over 12 million individual property transactions, which is merged with GIS data identifying the spatial location and main characteristics of 1,666 flood defenses built in England between 1995 and 2014. Results suggest that at the finer 6-digit postcode level the construction of flood defenses raises urban house prices by 12.6% to 16.7%. However, for rural properties at the slightly coarser 5-digit postcode level the construction of defenses reduces house prices by 0.8% to 5.0%. This suggests that in certain locations the disamenity impact of flood defenses and the perceived threat of redirected flooding outweigh the benefits of reduced flood risk.
机译:在本文中,我们使用差异差额重复销售方法确定了防洪设施建设对房地产价格的影响。我们的数据集包含有关超过1200万笔个人财产交易的信息,并与GIS数据合并,这些数据确定了1995年至2014年之间在英格兰建造的1,666座防洪堤的空间位置和主要特征。结果表明,在更好的6位邮政编码水平上,防洪工程的建设使城市房价上涨了12.6%,达到了16.7%。但是,对于农村地区的5位数邮政编码区域,其防御设施的建设将房价降低了0.8%至5.0%。这表明,在某些地区,防洪设施带来的灾难性影响和重定向洪水的潜在威胁胜过降低洪水风险的好处。

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