Advanced Search
MyIDEAS: Login to save this paper or follow this series

Model Uncertainty and Monetary Policy

Contents:

Author Info

  • Richard Dennis

    ()
    (Federal Reserve Bank of San Francisco)

Abstract

Model uncertainty has the potential to change importantly how monetary policy should be conducted, making it an issue that central banks cannot ignore. In this paper, I use a standard new Keynesian business cycle model to analyze the behavior of a central bank that conducts policy with discretion while fearing that its model is misspecified. My main results are as follows. First, policy performance can be improved if the discretionary central bank implements a robust policy. This important result is obtained because the central bank's desire for robustness directs it to assertively stabilize inflation, thereby mitigating the stabilization bias associated with discretionary policymaking. In effect, a fear of model uncertainty can act similarly to a commitment mechanism. Second, exploiting the connection between robust control and uncertainty aversion, I show that the central bank's fear of model misspecification leads it to forecast future outcomes under the belief that inflation (in particular) will be persistent and have large unconditional variance, raising the probability of extreme outcomes. Private agents, however, anticipating the policy response, make decisions under the belief that inflation will be more closely stabilized, that is, more tightly distributed, than under rational expectations. Third, as a technical contribution, I show how to solve an important class of linear-quadratic robust Markov-perfect Stackelberg problems.

Download Info

If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
File URL: http://www.ncer.edu.au/papers/documents/NCER_WpNo30Aug08.pdf
Download Restriction: no

Bibliographic Info

Paper provided by National Centre for Econometric Research in its series NCER Working Paper Series with number 30.

as in new window
Length: 30 pages
Date of creation: 10 Aug 2008
Date of revision:
Handle: RePEc:qut:auncer:2008-19

Contact details of provider:
Phone: 07 3138 5066
Fax: 07 3138 1500
Web page: http://www.ncer.edu.au
More information through EDIRC

Related research

Keywords: Model uncertainty; robustness; uncertainty aversion; time-consistency.;

Other versions of this item:

Find related papers by JEL classification:

References

References listed on IDEAS
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.:
as in new window
  1. Richard Dennis, 2001. "Optimal policy in rational-expectations models: new solution algorithms," Working Paper Series 2001-09, Federal Reserve Bank of San Francisco.
  2. Walsh, Carl E, 1995. "Optimal Contracts for Central Bankers," American Economic Review, American Economic Association, vol. 85(1), pages 150-67, March.
  3. Tillmann, Peter, 2009. "The stabilization bias and robust monetary policy delegation," Journal of Macroeconomics, Elsevier, vol. 31(4), pages 730-734, December.
  4. Dennis, Richard & Söderström, Ulf, 2002. "How Important Is Precommitment for Monetary Policy?," Working Paper Series 139, Sveriges Riksbank (Central Bank of Sweden).
  5. Andrew T. Levin & John C. Williams, 2003. "Robust monetary policy with competing reference models," Working Paper Series 2003-10, Federal Reserve Bank of San Francisco.
  6. Svensson, Lars E. O. & Williams, Noah, 2006. "Bayesian and adaptive optimal policy under model uncertainty," CFS Working Paper Series 2007/11, Center for Financial Studies (CFS).
  7. Richard Dennis & Kai Leitemo & Ulf Soderstrom, 2006. "Methods for Robust Control," 2006 Meeting Papers 493, Society for Economic Dynamics.
  8. Richard Clarida & Jordi Galí & Mark Gertler, 1997. "The science of monetary policy: A new Keynesian perspective," Economics Working Papers 356, Department of Economics and Business, Universitat Pompeu Fabra, revised Apr 1999.
  9. Hansen, Lars Peter & Sargent, Thomas J. & Turmuhambetova, Gauhar & Williams, Noah, 2006. "Robust control and model misspecification," Journal of Economic Theory, Elsevier, vol. 128(1), pages 45-90, May.
  10. Leitemo , Kai & Söderström , Ulf, 2005. "Robust monetary policy in a small open economy," Research Discussion Papers 20/2005, Bank of Finland.
  11. Alexei Onatski & James H. Stock, 2000. "Robust Monetary Policy Under Model Uncertainty in a Small Model of the U.S. Economy," NBER Working Papers 7490, National Bureau of Economic Research, Inc.
  12. Lars Peter Hansen & Thomas J. Sargent & Thomas D. Tallarini Jr., 1997. "Robust Permanent Income and Pricing," Levine's Working Paper Archive 596, David K. Levine.
  13. J. Tetlow, Robert & von zur Muehlen, Peter, 2001. "Robust monetary policy with misspecified models: Does model uncertainty always call for attenuated policy?," Journal of Economic Dynamics and Control, Elsevier, vol. 25(6-7), pages 911-949, June.
  14. Michael Woodford, 2005. "Robustly Optimal Monetary Policy with Near Rational Expectations," NBER Working Papers 11896, National Bureau of Economic Research, Inc.
  15. Anderson, Evan W. & McGrattan, Ellen R. & Hansen, Lars Peter & Sargent, Thomas J., 1996. "Mechanics of forming and estimating dynamic linear economies," Handbook of Computational Economics, in: H. M. Amman & D. A. Kendrick & J. Rust (ed.), Handbook of Computational Economics, edition 1, volume 1, chapter 4, pages 171-252 Elsevier.
  16. Carl Walsh, 2003. "Speed Limit Policies: The Output Gap and Optimal Monetary Policy," American Economic Review, American Economic Association, vol. 93(1), pages 265-278, March.
  17. Giordani, Paolo & Söderlind, Paul, 2002. "Solution of Macromodels with Hansen-Sargent Robust Policies: Some Extensions," Working Paper Series in Economics and Finance 499, Stockholm School of Economics, revised 15 May 2003.
  18. Alexei Onatski & Noah Williams, 2003. "Modeling Model Uncertainty," NBER Working Papers 9566, National Bureau of Economic Research, Inc.
  19. Lawrence J. Christiano & Martin Eichenbaum & Charles Evans, 2001. "Nominal Rigidities and the Dynamic Effects of a Shock to Monetary Policy," NBER Working Papers 8403, National Bureau of Economic Research, Inc.
  20. Backus, David & Driffill, John, 1986. "The Consistency of Optimal Policy in Stochastic Rational Expectations Models," CEPR Discussion Papers 124, C.E.P.R. Discussion Papers.
  21. Abel, A.B., 1990. "Asset Prices Under Habit Formation And Catching Up With The Joneses," Weiss Center Working Papers 1-90, Wharton School - Weiss Center for International Financial Research.
  22. Gino Cateau, 2006. "Guarding Against Large Policy Errors under Model Uncertainty," Working Papers 06-13, Bank of Canada.
  23. repec:cup:macdyn:v:6:y:2002:i:1:p:40-84 is not listed on IDEAS
  24. Richard Dennis & Kai Leitemo & Ulf Söderström, 2007. "Monetary policy in a small open economy with a preference for robustness," Working Paper Series 2007-04, Federal Reserve Bank of San Francisco.
  25. Buiter,Willem H. & Marston,Richard C., 1986. "International Economic Policy Coordination," Cambridge Books, Cambridge University Press, number 9780521337809.
  26. Hans M. Amman & David A. Kendrick, . "Computational Economics," Online economics textbooks, SUNY-Oswego, Department of Economics, number comp1, Spring.
  27. Hansen, Lars Peter & Sargent, Thomas J. & Wang, Neng E., 2002. "Robust Permanent Income And Pricing With Filtering," Macroeconomic Dynamics, Cambridge University Press, vol. 6(01), pages 40-84, February.
  28. Richard Dennis & Federico Ravenna, 2007. "Learning and optimal monetary policy," Working Paper Series 2007-19, Federal Reserve Bank of San Francisco.
  29. Smets, Frank & Wouters, Raf, 2002. "An estimated stochastic dynamic general equilibrium model of the euro area," Working Paper Series 0171, European Central Bank.
  30. Giannoni, Marc P., 2002. "Does Model Uncertainty Justify Caution? Robust Optimal Monetary Policy In A Forward-Looking Model," Macroeconomic Dynamics, Cambridge University Press, vol. 6(01), pages 111-144, February.
  31. Epstein, Larry G & Wang, Tan, 1994. "Intertemporal Asset Pricing Under Knightian Uncertainty," Econometrica, Econometric Society, vol. 62(2), pages 283-322, March.
  32. Rogoff, Kenneth, 1985. "The Optimal Degree of Commitment to an Intermediate Monetary Target," The Quarterly Journal of Economics, MIT Press, vol. 100(4), pages 1169-89, November.
  33. repec:cup:macdyn:v:6:y:2002:i:1:p:111-44 is not listed on IDEAS
  34. Gilles Oudiz & Jeffrey Sachs, 1985. "International Policy Coordination In Dynamic Macroeconomic Models," NBER Chapters, in: International Economic Policy Coordination, pages 274-330 National Bureau of Economic Research, Inc.
  35. Gilboa, Itzhak & Schmeidler, David, 1989. "Maxmin expected utility with non-unique prior," Journal of Mathematical Economics, Elsevier, vol. 18(2), pages 141-153, April.
Full references (including those not matched with items on IDEAS)

Citations

Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
as in new window

Cited by:
  1. Joshua Congdon-Hohman & Anil Nathan & Justin Svec, 2013. "Student Uncertainty and Major Choice," Working Papers 1301, College of the Holy Cross, Department of Economics.
  2. Giese, Guido & Wagner, Helmut, 2009. "A New Keynesian Model with Endogenous Frictions," Discussion Paper Series a520, Institute of Economic Research, Hitotsubashi University.
  3. Justin Svec, 2010. "Optimal Fiscal Policy with Robust Control," Working Papers 1004, College of the Holy Cross, Department of Economics.

Lists

This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

Statistics

Access and download statistics

Corrections

When requesting a correction, please mention this item's handle: RePEc:qut:auncer:2008-19. 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: (School of Economics and Finance) The email address of this maintainer does not seem to be valid anymore. Please ask School of Economics and Finance to update the entry or send us the correct address.

If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

If references are entirely missing, you can add them using this form.

If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.

If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.

Please note that corrections may take a couple of weeks to filter through the various RePEc services.