Expecting Climate Change: A Nationwide Field Experiment in the Housing Market

Daryl Fairweather, Matthew Kahn, Robert Metcalfe and Sebastian Sandoval-Olascoaga

Natural Field Experiments from The Field Experiments Website

Abstract: Climate change presents new risks for property in the United States. Due to the high cost and sometimes unavailability of location-specific property risk data, home buyers can greatly benefit from acquiring knowledge about these risks. To explore this, a large-scale nationwide natural field experiment was conducted through Redfin to estimate the causal impact of providing home-specific flood risk information on the behavior of home buyers in terms of their search, bidding, and purchasing decisions. Redfin randomly assigned 17.5 million users to receive information detailing the flood risk associated with the properties they searched for on the platform. Our analysis reveals several key findings: (1) the flood risk information influences every stage of the house buying process, including the initial search, bidding activities, and final purchase; (2) individuals are willing to make trade-offs concerning property amenities in order to own a property with a lower flood risk; (3) the impact of the flood risk information on behavior is more pronounced for users conducting searches in high flood risk areas, but does not differ significantly between buyers in Republican and Democrat Counties; and (4) the information resulted in changes to property prices and altered the market's hedonic equilibrium, providing a new finding that climate adaptation can be forward-thinking and proactive.

Date: 2025
New Economics Papers: this item is included in nep-agr, nep-env and nep-exp
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Persistent link: https://EconPapers.repec.org/RePEc:feb:natura:00818

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