Credit Spreads and Monetary Policy

62 Pages Posted: 31 Aug 2009 Last revised: 12 Apr 2023

See all articles by Vasco Cúrdia

Vasco Cúrdia

Federal Reserve Bank of San Francisco

Michael Woodford

Columbia University, Graduate School of Arts and Sciences, Department of Economics

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Date Written: August 2009

Abstract

We consider the desirability of modifying a standard Taylor rule for a central bank's interest-rate policy to incorporate either an adjustment for changes in interest-rate spreads (as proposed by Taylor [2008] and by McCulley and Toloui [2008]) or a response to variations in the aggregate volume of credit (as proposed by Christiano et al. [2007]). We consider the consequences of such adjustments for the way in which policy would respond to a variety of types of possible economic disturbances, including (but not limited to) disturbances originating in the financial sector that increase equilibrium spreads and contract the supply of credit. We conduct our analysis using the simple DSGE model with credit frictions developed in Curdia and Woodford (2009), and compare the equilibrium responses to a variety of disturbances under the modified Taylor rules to those under a policy that would maximize average expected utility. According to our model, a spread adjustment can improve upon the standard Taylor rule, but the optimal size is unlikely to be as large as the one proposed, and the same type of adjustment is not desirable regardless of the source of the variation in credit spreads. A response to credit is less likely to be helpful, and the desirable size (and even the right sign) of the response to credit is less robust to alternative assumptions about the nature and persistence of disturbances.

Suggested Citation

Cúrdia, Vasco and Woodford, Michael, Credit Spreads and Monetary Policy (August 2009). NBER Working Paper No. w15289, Available at SSRN: https://ssrn.com/abstract=1463882

Vasco Cúrdia

Federal Reserve Bank of San Francisco ( email )

101 Market Street
MS 1130
San Francisco, CA 94105
United States
(415) 977-3624 (Phone)

HOME PAGE: http://www.frbsf.org/economics/economists/staff.php?vcurdia

Michael Woodford (Contact Author)

Columbia University, Graduate School of Arts and Sciences, Department of Economics ( email )

420 W. 118th Street
New York, NY 10027
United States

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