MoNK: Mortgages in a New-Keynesian Model

Garriga, Carlos; Kydland, Finn E.; Šustek, Roman

doi:10.20955/wp.2019.032

Working Paper

MoNK: Mortgages in a New-Keynesian Model

Abstract: We propose a tractable framework for monetary policy analysis in which both short- and long-term debt affect equilibrium outcomes. This objective is motivated by observations from two literatures suggesting that monetary policy contains a dimension affecting expected future interest rates and thus the costs of long-term financing. In New-Keynesian models, however, long-term loans are redundant assets. We use the model to address three questions: what are the effects of statement vs. action policy shocks; how important are standard New- Keynesian vs. cash flow effects in their transmission; and what is the interaction between these two effects?

Keywords: Mortgages; cash-flow effects; sticky prices; monetary policy transmission; monetary policy communication;

JEL Classification: E52; G21; R21;

https://doi.org/10.20955/wp.2019.032