Optimal monetary policy in a model of the credit channel
We consider a simple extension of the basic new-Keynesian setup in which we relax the assumption of frictionless financial markets. In our economy, asymmetric information and default risk lead banks to optimally charge a lending rate above the risk-free rate. Our contribution is threefold. First, we derive analytically the loglinearised equations which characterise aggregate dynamics in our model and show that they nest those of the new- Keynesian model. A key difference is that marginal costs increase not only with the output gap, but also with the credit spread and the nominal interest rate. Second, we find that financial market imperfections imply that exogenous disturbances, including technology shocks, generate a trade-off between output and inflation stabilisation. Third, we show that, in our model, an aggressive easing of policy is optimal in response to adverse financial market shocks. JEL Classification: E52, E44
|Date of creation:||Apr 2009|
|Date of revision:|
|Contact details of provider:|| Postal: 60640 Frankfurt am Main, Germany|
Phone: +49 69 1344 0
Fax: +49 69 1344 6000
Web page: http://www.ecb.europa.eu/
More information through EDIRC
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Frank Smets & Rafael Wouters, 2007.
"Shocks and Frictions in US Business Cycles: A Bayesian DSGE Approach,"
American Economic Review,
American Economic Association, vol. 97(3), pages 586-606, June.
- Smets, Frank & Wouters, Rafael, 2007. "Shocks and Frictions in US Business Cycles: A Bayesian DSGE Approach," CEPR Discussion Papers 6112, C.E.P.R. Discussion Papers.
- Smets, Frank & Wouters, Raf, 2007. "Shocks and frictions in US business cycles: a Bayesian DSGE approach," Working Paper Series 0722, European Central Bank.
- Frank Smets & Raf Wouters, 2007. "Shocks and Frictions in US Business Cycles : a Bayesian DSGE Approach," Working Paper Research 109, National Bank of Belgium.
- Andrew T. Levin & Fabio M. Natalucci & Egon Zakrajsek, 2004.
"The magnitude and cyclical behavior of financial market frictions,"
Finance and Economics Discussion Series
2004-70, Board of Governors of the Federal Reserve System (U.S.).
- (Kim | Lopez-Salido | Swanson) & Andrew Levin, 2004. "The magnitude and Cyclical Behavior of Financial Market Frictions," Computing in Economics and Finance 2004 224, Society for Computational Economics.
- Andrew T. Levin & Fabio M. Natalucci, 2005. "The Magnitude and Cyclical Behavior of Financial Market Frictions," 2005 Meeting Papers 443, Society for Economic Dynamics.
- Ravenna, Federico & Walsh, Carl E., 2006. "Optimal monetary policy with the cost channel," Journal of Monetary Economics, Elsevier, vol. 53(2), pages 199-216, March.
- Lawrence J. Christiano & Martin Eichenbaum, 1992.
"Liquidity effects and the monetary transmission mechanism,"
150, Federal Reserve Bank of Minneapolis.
- Christiano, Lawrence J & Eichenbaum, Martin, 1992. "Liquidity Effects and the Monetary Transmission Mechanism," American Economic Review, American Economic Association, vol. 82(2), pages 346-53, May.
- Lawrence J. Christiano & Martin Eichenbaum, 1992. "Liquidity Effects and the Monetary Transmission Mechanism," NBER Working Papers 3974, National Bureau of Economic Research, Inc.
- Glenn D. Rudebusch, 2006.
"Monetary Policy Inertia: Fact or Fiction?,"
International Journal of Central Banking,
International Journal of Central Banking, vol. 2(4), December.
- Fiorella De Fiore & Oreste Tristani, 2011.
"Credit and the Natural Rate of Interest,"
Journal of Money, Credit and Banking,
Blackwell Publishing, vol. 43, pages 407-440, 03.
- Christiano, Lawrence & Ilut, Cosmin & Motto, Roberto & Rostagno, Massimo, 2008. "Monetary policy and stock market boom-bust cycles," Working Paper Series 0955, European Central Bank.
- Townsend, Robert M., 1979.
"Optimal contracts and competitive markets with costly state verification,"
Journal of Economic Theory,
Elsevier, vol. 21(2), pages 265-293, October.
- Robert M. Townsend, 1979. "Optimal contracts and competitive markets with costly state verification," Staff Report 45, Federal Reserve Bank of Minneapolis.
- Gilchrist, Simon & Leahy, John V., 2002. "Monetary policy and asset prices," Journal of Monetary Economics, Elsevier, vol. 49(1), pages 75-97, January.
- Timothy S. Fuerst & Charles T. Carlstrom, 1998. "Agency costs and business cycles," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 12(3), pages 583-597.
- Charles T. Carlstrom & Timothy S. Fuerst, 1996.
"Agency costs, net worth, and business fluctuations: a computable general equilibrium analysis,"
9602, Federal Reserve Bank of Cleveland.
- Carlstrom, Charles T & Fuerst, Timothy S, 1997. "Agency Costs, Net Worth, and Business Fluctuations: A Computable General Equilibrium Analysis," American Economic Review, American Economic Association, vol. 87(5), pages 893-910, December.
- Faia, Ester & Monacelli, Tommaso, 2007.
"Optimal interest rate rules, asset prices, and credit frictions,"
Journal of Economic Dynamics and Control,
Elsevier, vol. 31(10), pages 3228-3254, October.
- Tommaso Monacelli & Ester Faia, 2005. "Optimal Interest Rate Rules, Asset Prices and Credit Frictions," Computing in Economics and Finance 2005 452, Society for Computational Economics.
- Bernanke, B. & Gertler, M. & Gilchrist, S., 1998.
"The Financial Accelerator in a Quantitative Business Cycle Framework,"
98-03, C.V. Starr Center for Applied Economics, New York University.
- Bernanke, Ben S. & Gertler, Mark & Gilchrist, Simon, 1999. "The financial accelerator in a quantitative business cycle framework," Handbook of Macroeconomics, in: J. B. Taylor & M. Woodford (ed.), Handbook of Macroeconomics, edition 1, volume 1, chapter 21, pages 1341-1393 Elsevier.
- Ben Bernanke & Mark Gertler & Simon Gilchrist, 1998. "The Financial Accelerator in a Quantitative Business Cycle Framework," NBER Working Papers 6455, National Bureau of Economic Research, Inc.
- Douglas Gale & Martin Hellwig, 1985. "Incentive-Compatible Debt Contracts: The One-Period Problem," Review of Economic Studies, Oxford University Press, vol. 52(4), pages 647-663.
When requesting a correction, please mention this item's handle: RePEc:ecb:ecbwps:20091043. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Official Publications)
If references are entirely missing, you can add them using this form.