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Review of Economic Studies Vol. 88 No. 4 2021

Learning from House Prices: Amplification and Business Fluctuations

Ryan Chahrour1; Gaetano Gaballo2

1 Boston College · 2 HEC Paris and CEPR

Abstract

We formalize the idea that house price changes may drive rational waves of optimism and pessimism in the economy. In our model, a house price increase caused by aggregate disturbances may be misinterpreted as a sign of higher local permanent income, leading households to demand more consumption and housing. Higher demand reinforces the initial price increase in an amplification loop that drives comovement in output, labour, residential investment, land prices, and house prices even in response to aggregate supply shocks. The qualitative implications of our otherwise frictionless model are consistent with observed business cycles and it can explain the economic impact of apparently autonomous changes in sentiment without resorting to non-fundamental shocks or nominal rigidity.

DOI
10.1093/restud/rdaa079
Volume
88
Issue
4
Pages
1720-1759
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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