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The Importance of Commitment in the New Keynesian Model

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  • Jean-Paul Lam

    (Department of Economics, University of Waterloo)

Abstract

In the New Keynesian model, even if the central bank does not have an over-ambitious output target, policy under discretion leads to an inefficiency known as the stabilisation bias. In this paper, using a New Keynesian model, we explore and quantify how various uncertainties such as an information lag, a cost channel and multi-period data revisions affect the size of the stabilisation bias. When an information lag is introduced in an otherwise standard New Keynesian model, we find that the size of the stabilisation bias is considerably reduced. The presence of a cost-channel in the model, on the other hand, increases the stabilisation bias significantly. Finally, multi-period revisions to output and inflation, reduces the inefficiency associated with discretionary policy.

Suggested Citation

  • Jean-Paul Lam, 2010. "The Importance of Commitment in the New Keynesian Model," Working Papers 1008, University of Waterloo, Department of Economics, revised Jul 2010.
  • Handle: RePEc:wat:wpaper:1008
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    File URL: http://economics.uwaterloo.ca/documents/10-008JPL.pdf
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    References listed on IDEAS

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    1. Svensson, Lars E. O. & Woodford, Michael, 2003. "Indicator variables for optimal policy," Journal of Monetary Economics, Elsevier, vol. 50(3), pages 691-720, April.
    2. Coenen, Gunter & Levin, Andrew & Wieland, Volker, 2005. "Data uncertainty and the role of money as an information variable for monetary policy," European Economic Review, Elsevier, vol. 49(4), pages 975-1006, May.
    3. Coenen Günter & Orphanides Athanasios & Wieland Volker, 2004. "Price Stability and Monetary Policy Effectiveness when Nominal Interest Rates are Bounded at Zero," The B.E. Journal of Macroeconomics, De Gruyter, vol. 4(1), pages 1-25, February.
    4. Kilponen, Juha & Leitemo, Kai, 2011. "Transmission lags and optimal monetary policy," Journal of Economic Dynamics and Control, Elsevier, vol. 35(4), pages 565-578, April.
    5. Carl E. Walsh, 2003. "Monetary Theory and Policy, 2nd Edition," MIT Press Books, The MIT Press, edition 2, volume 1, number 0262232316, January.
    6. Amato, Jeffery D. & Laubach, Thomas, 2003. "Rule-of-thumb behaviour and monetary policy," European Economic Review, Elsevier, vol. 47(5), pages 791-831, October.
    7. Calvo, Guillermo A., 1983. "Staggered prices in a utility-maximizing framework," Journal of Monetary Economics, Elsevier, vol. 12(3), pages 383-398, September.
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    Cited by:

    1. Jakob Palek, 2015. "The Optimal Monetary and Fiscal Policy Mix in a Financially Heterogeneous Monetary Union," MAGKS Papers on Economics 201506, Philipps-Universität Marburg, Faculty of Business Administration and Economics, Department of Economics (Volkswirtschaftliche Abteilung).
    2. Matthias Lengnick & Hans-Werner Wohltmann, 2013. "Agent-based financial markets and New Keynesian macroeconomics: a synthesis," Journal of Economic Interaction and Coordination, Springer;Society for Economic Science with Heterogeneous Interacting Agents, vol. 8(1), pages 1-32, April.
    3. Palek, Jakob, 2015. "The Optimal Monetary and Fiscal Policy Mix in a Financially Heterogeneous Monetary Union," Annual Conference 2015 (Muenster): Economic Development - Theory and Policy 113047, Verein für Socialpolitik / German Economic Association.
    4. Esteban Pérez Caldentey & Matías Vernengo, 2013. "Is inflation targeting operative in an open economy setting?," Review of Keynesian Economics, Edward Elgar Publishing, vol. 1(3), pages 347-369, January.
    5. Palek, Jakob & Schwanebeck, Benjamin, 2017. "Financial frictions and optimal stabilization policy in a monetary union," Economic Modelling, Elsevier, vol. 61(C), pages 462-477.
    6. Ali, Syed Zahid & Anwar, Sajid, 2013. "Inflation and interest rates in the presence of a cost channel, wealth effect and agent heterogeneity," Economic Modelling, Elsevier, vol. 31(C), pages 286-296.
    7. Jochen Michaelis & Jakob Palek, 2014. "Optimal Monetary Policy in a Currency Union: Implications of a Country-specific Cost Channel," MAGKS Papers on Economics 201444, Philipps-Universität Marburg, Faculty of Business Administration and Economics, Department of Economics (Volkswirtschaftliche Abteilung).

    More about this item

    JEL classification:

    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies
    • E61 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - Policy Objectives; Policy Designs and Consistency; Policy Coordination

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