Unconventional monetary policy in a nonlinear quadratic model

Faulwasser Timm (), Gross Marco (), Willi Semmler and Prakash Loungani
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Faulwasser Timm: Karlsruhe Institute of Technology, Karlsruhe, Germany
Gross Marco: IMF, Washington, USA

Studies in Nonlinear Dynamics & Econometrics, 2020, vol. 24, issue 5, 19

Abstract: After the financial market meltdown and the Great Recession of the years 2007–9, the financial market-macro link has become an important issue in monetary policy modeling. We develop a dynamic model that contains a nonlinear Phillips curve, a dynamic output equation, and a nonlinear credit flow equation – capturing the importance of credit cycles, risk premia, and credit spreads. Our Nonlinear Quadratic Model (NLQ) model has three dynamic state equations and a quadratic objective function. It can be used to evaluate the response of central banks to the Great Recession in moving from conventional to unconventional monetary policy. We solve the model with a new numerical procedure using estimated parameters for the euro area. We conduct simulations to explore the (de)stabilizing effects of the nonlinearities in the model. We demonstrate that credit flows, risk premia, and credit spreads play an important role as an amplification mechanism and in affecting the transmission of monetary policy. We thereby highlight the importance of the natural rate of interest as an anchor for a central bank target and the weight it places on the credit flows for the effectiveness of unconventional monetary policy. Our model is similar in structure compared to larger scale macro-econometric models which many central banks employ.

Keywords: credit cycles; credit spread; inflation targeting; nonlinear Phillips curve; NLQ model; RS-VAR; unconventional monetary policy (search for similar items in EconPapers)
JEL-codes: E42 E52 E58 (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (4)

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DOI: 10.1515/snde-2019-0099

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