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Robustly Optimal Monetary Policy in a Microfounded New Keynesian Model

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  • Adam, Klaus
  • Woodford, Michael

Abstract

We consider optimal monetary stabilization policy in a New Keynesian model with explicit microfoundations, when the central bank recognizes that private-sector expectations need not be precisely model-consistent, and wishes to choose a policy that will be as good as possible in the case of any beliefs close enough to model-consistency. We show how to characterize robustly optimal policy without restricting consideration a priori to a particular parametric family of candidate policy rules. We show that robustly optimal policy can be implemented through commitment to a target criterion involving only the paths of inflation and a suitably defined output gap, but that a concern for robustness requires greater resistance to surprise increases in inflation than would be considered optimal if one could count on the private sector to have 'rational expectations'.

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Bibliographic Info

Paper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 8826.

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Date of creation: Feb 2012
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Handle: RePEc:cpr:ceprdp:8826

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Keywords: belief distortions; near-rational expectations; robust control; target criterion;

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  1. Pierpaolo Benigno & Michael Woodford, 2005. "Inflation Stabilization And Welfare: The Case Of A Distorted Steady State," Journal of the European Economic Association, MIT Press, vol. 3(6), pages 1185-1236, December.
  2. Michael Woodford, 2010. "Robustly Optimal Monetary Policy with Near-Rational Expectations," American Economic Review, American Economic Association, vol. 100(1), pages 274-303, March.
  3. Adam, Klaus & Billi, Roberto M., 2006. "Optimal Monetary Policy under Commitment with a Zero Bound on Nominal Interest Rates," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 38(7), pages 1877-1905, October.
  4. Pierpaolo Benigno & Luigi Paciello, 2010. "Monetary Policy, Doubts and Asset Prices," EIEF Working Papers Series 1024, Einaudi Institute for Economics and Finance (EIEF), revised Sep 2010.
  5. Marc P. Giannoni & Michael Woodford, 2012. "Optimal target criteria for stabilization policy," Staff Reports 535, Federal Reserve Bank of New York.
  6. Yun, Tack, 1996. "Nominal price rigidity, money supply endogeneity, and business cycles," Journal of Monetary Economics, Elsevier, vol. 37(2-3), pages 345-370, April.
  7. Adam, Klaus & Billi, Roberto M., 2007. "Discretionary monetary policy and the zero lower bound on nominal interest rates," Journal of Monetary Economics, Elsevier, vol. 54(3), pages 728-752, April.
  8. Hansen, Lars Peter & Sargent, Thomas J., 2005. "Robust estimation and control under commitment," Journal of Economic Theory, Elsevier, vol. 124(2), pages 258-301, October.
  9. Thomas J. Sargent & Riccardo Colacito & Lars P. Hansen & Timothy Cogley, 2008. "Robustness and US Monetary," 2008 Meeting Papers 228, Society for Economic Dynamics.
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Cited by:
  1. Frank Hespeler & Marco M. Sorge, 2013. "Does Near-Rationality Matter in First-Order Approximate Solutions? A Perturbation Approach," CSEF Working Papers 339, Centre for Studies in Economics and Finance (CSEF), University of Naples, Italy.
  2. Michael Woodford, 2013. "Macroeconomic Analysis without the Rational Expectations Hypothesis," NBER Working Papers 19368, National Bureau of Economic Research, Inc.
  3. Driscoll, John C. & Holden, Steinar, 2014. "Behavioral Economics and Macroeconomic Models," Finance and Economics Discussion Series 2014-43, Board of Governors of the Federal Reserve System (U.S.).

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