{"title":"Cities and the sea level","authors":"Yatang Lin , Thomas K.J. McDermott , Guy Michaels","doi":"10.1016/j.jue.2024.103685","DOIUrl":null,"url":null,"abstract":"<div><p>Construction on low elevation coastal zones is risky for both residents and taxpayers who bail them out. To investigate this construction, we analyze spatially disaggregated data covering the entire US Atlantic and Gulf coasts. We find that the 1990 housing stock reflects historical avoidance of locations prone to sea level rise (SLR) and flooding, but net new construction from 1990–2010 was similar in SLR-prone locations and safer ones; and within densely built coastal areas, net new construction was higher in SLR-prone locations. These findings are difficult to rationalize as mere products of moral hazard or imperfect information, suggesting that people build on risky locations to benefit from nearby urban agglomerations. To explain our findings, we develop a simple model of a monocentric coastal city, which we use to explore the consequences of sea level rise. This model helps explain cities’ role in expanding flood risks, and how future sea level rise may reshape coastal cities, creating significant challenges for policymakers.</p></div>","PeriodicalId":48340,"journal":{"name":"Journal of Urban Economics","volume":null,"pages":null},"PeriodicalIF":5.7000,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S009411902400055X/pdfft?md5=d06c9d552772595c2690d4ce55009d7a&pid=1-s2.0-S009411902400055X-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Urban Economics","FirstCategoryId":"96","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S009411902400055X","RegionNum":1,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ECONOMICS","Score":null,"Total":0}
引用次数: 0
Abstract
Construction on low elevation coastal zones is risky for both residents and taxpayers who bail them out. To investigate this construction, we analyze spatially disaggregated data covering the entire US Atlantic and Gulf coasts. We find that the 1990 housing stock reflects historical avoidance of locations prone to sea level rise (SLR) and flooding, but net new construction from 1990–2010 was similar in SLR-prone locations and safer ones; and within densely built coastal areas, net new construction was higher in SLR-prone locations. These findings are difficult to rationalize as mere products of moral hazard or imperfect information, suggesting that people build on risky locations to benefit from nearby urban agglomerations. To explain our findings, we develop a simple model of a monocentric coastal city, which we use to explore the consequences of sea level rise. This model helps explain cities’ role in expanding flood risks, and how future sea level rise may reshape coastal cities, creating significant challenges for policymakers.
期刊介绍:
The Journal of Urban Economics provides a focal point for the publication of research papers in the rapidly expanding field of urban economics. It publishes papers of great scholarly merit on a wide range of topics and employing a wide range of approaches to urban economics. The Journal welcomes papers that are theoretical or empirical, positive or normative. Although the Journal is not intended to be multidisciplinary, papers by noneconomists are welcome if they are of interest to economists. Brief Notes are also published if they lie within the purview of the Journal and if they contain new information, comment on published work, or new theoretical suggestions.