Ungerer, Christoph, Monetary Policy, Hot Housing Markets and Leverage (May 22, 2015). FEDS Working Paper No. 2015-048. Available for download at SSRN: http://ssrn.com/abstract=2628295

“Expansionary monetary policy can increase household leverage by stimulating housing liquidity. Low mortgage rates encourage buyers to enter the housing market, raising the speed at which properties can be sold. Because lenders can resell seized foreclosure inventory at lower cost in such a hot housing market, ex-ante they are comfortable financing a larger fraction of the house purchase. Consistent with this mechanism, this study documents empirically that both the housing sales rate and loan-to-value ratios increase after expansionary monetary policy. Calibrating a New Keynesian macroeconomic model to fit the response of housing liquidity to monetary policy, the interaction between credit frictions and housing market search frictions generates endogenous movements in the loan-to-value ratio which amplify the economy’s response to monetary policy.”