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Title: How Monetary Policy Shaped the Housing Boom

Author(s): Itamar Drechsler, Alexi Savov and Philipp Schnabl

Publication Date: December 2019

Keyword(s): banks, deposits, monetary policy, Mortgage lending, Private- label securitization and Securitization

Programme Area(s): Financial Economics

Abstract: Between 2003 and 2006, the Federal Reserve raised rates by 4.25%. Yet it was precisely during this period that the housing boom accelerated, fueled by rapid growth in mortgage lending. There is deep disagreement about how, or even if, monetary policy impacted the boom. Using heterogeneity in banks' exposures to the deposits channel of monetary policy, we show that Fed tightening induced a large reduction in banks' deposit funding, leading them to contract new on-balance-sheet lending for home purchases by 26%. However, an unprecedented expansion in privately-securitized loans, led by nonbanks, largely offset this contraction. Since privately-securitized loans are neither GSE-insured nor deposit-funded, they are run-prone, which made the mortgage market fragile. Consistent with our theory, the re-emergence of privately-securitized mortgages has closely tracked the recent increase in rates.

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Bibliographic Reference

Drechsler, I, Savov, A and Schnabl, P. 2019. 'How Monetary Policy Shaped the Housing Boom'. London, Centre for Economic Policy Research.