NBER

Caitlin S. Gorback, Benjamin J. Keys

Bibliographic Information

NBER Working Paper No. 27370
Issued in June 2020
NBER Program(s):PE

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Abstract

Interconnected capital markets allow mobile global capital to flow into immobile local assets. This paper examines how foreign demand affects U.S. housing markets, and uses this demand shock to estimate local price elasticities of supply. Other countries introduced foreign-buyer taxes meant to deter Chinese housing investment beginning in 2011. We first show house prices grew 8 percentage points more in U.S. zipcodes with high foreign-born Chinese populations after 2011, subsequently reversing with the onset of the U.S.–China trade war. Second, we use international tax policy changes as a U.S. housing demand shock and estimate local house price and quantity elasticities with respect to international capital. We find that a 1% increase in instrumented foreign capital raises house prices at the zip code level by 0.27%, and housing supply by 0.004%. Finally, we use the two elasticities to construct new local house price elasticities of supply for the largest 100 CBSAs. These supply elasticities average 0.1 and vary between 0.02 and 0.7, suggesting that local housing markets are inelastic in the short run and exhibit substantial spatial heterogeneity.

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