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Optimal Monetary Policy with an Uncertain Cost Channel

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  • PETER TILLMANN

Abstract

The cost channel of monetary transmission describes a supply-side effect of interest rates on firms' costs. Previous research has found this effect to vary, both over time and across countries. Moreover, the cyclical nature of financial frictions is likely to amplify the cost channel. This paper derives optimal monetary policy in the presence of uncertainty about the true size of the cost channel. In a min-max approach, the central bank derives an optimal policy plan to be implemented by a Taylor rule. It is shown that uncertainty about the cost channel leads to an attenuated interest rate setting behavior. In this respect, the Brainard (1967) principle of cautious policy in the face of uncertainty continues to hold in both a Bayesian and a min-max framework. Copyright (c) 2009 The Ohio State University.

Suggested Citation

  • Peter Tillmann, 2009. "Optimal Monetary Policy with an Uncertain Cost Channel," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 41(5), pages 885-906, August.
    • Handle: RePEc:mcb:jmoncb:v:41:y:2009:i:5:p:885-906
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    Cited by:

    1. Lasitha R. C. Pathberiya, 2016. "Optimal Monetary Policy at the Zero Lower Bound on Nominal Interest Rates in a Cost Channel Economy," Discussion Papers Series 568, School of Economics, University of Queensland, Australia.
    2. Oros, Cornel & Zimmer, Blandine, 2020. "Budget uncertainty in a monetary union," European Journal of Political Economy, Elsevier, vol. 63(C).
    3. Leitemo, Kai & Söderström, Ulf, 2008. "Robust monetary policy in a small open economy," Journal of Economic Dynamics and Control, Elsevier, vol. 32(10), pages 3218-3252, October.
    4. Tetlow, Robert, 2019. "The monetary policy response to uncertain inflation persistence," Economics Letters, Elsevier, vol. 175(C), pages 5-8.
    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. Hasui, Kohei, 2020. "A Note On Robust Monetary Policy And Non-Zero Trend Inflation," Macroeconomic Dynamics, Cambridge University Press, vol. 24(6), pages 1574-1594, September.
    7. David Finck, 2022. "Optimal Monetary Policy UnderHeterogeneous Beliefs," MAGKS Papers on Economics 202243, Philipps-Universität Marburg, Faculty of Business Administration and Economics, Department of Economics (Volkswirtschaftliche Abteilung).
    8. Carsten Hefeker & Blandine Zimmer, 2015. "Optimal Conservatism and Collective Monetary Policymaking under Uncertainty," Open Economies Review, Springer, vol. 26(2), pages 259-278, April.
    9. Funashima, Yoshito, 2020. "Monetary policy, financial uncertainty, and secular stagnation," The North American Journal of Economics and Finance, Elsevier, vol. 51(C).
    10. Kohei Hasui, 2021. "How robustness can change the desirability of speed limit policy," Scottish Journal of Political Economy, Scottish Economic Society, vol. 68(5), pages 553-570, November.
    11. Vasco J. Gabriel & Luis F. Martins, 2010. "The Cost Channel Reconsidered: A Comment Using an Identification‐Robust Approach," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 42(8), pages 1703-1712, December.
    12. Malikane, Christopher, 2012. "Inflation dynamics and the cost channel in emerging markets," MPRA Paper 42688, University Library of Munich, Germany.
    13. Chattopadhyay, Siddhartha & Ghosh, Taniya, 2020. "Taylor Rule implementation of the optimal policy at the zero lower bound: Does the cost channel matter?," Economic Modelling, Elsevier, vol. 89(C), pages 351-366.
    14. Beckmann, Joscha & Czudaj, Robert L., 2023. "Perceived monetary policy uncertainty," Journal of International Money and Finance, Elsevier, vol. 130(C).
    15. Hasui Kohei, 2021. "Trend Growth and Robust Monetary Policy," The B.E. Journal of Macroeconomics, De Gruyter, vol. 21(2), pages 449-472, June.
    16. Totzek, Alexander, 2009. "Banks and early deposit withdrawals in a new Keynesian framework," Economics Working Papers 2009-08, Christian-Albrechts-University of Kiel, Department of Economics.
    17. repec:onb:oenbwp:y::i:164:b:1 is not listed on IDEAS
    18. Ida, Daisuke & Okano, Mitsuhiro, 2023. "Optimal monetary policy delegation in a small-open new Keynesian model with robust control," Economic Modelling, Elsevier, vol. 120(C).
    19. Bounader Lahcen & Traficante Guido, 2023. "Robustly Optimal Monetary Policy in a Behavioral Environment," The B.E. Journal of Macroeconomics, De Gruyter, vol. 23(1), pages 521-550, January.
    20. Traficante, Guido, 2013. "Monetary policy, parameter uncertainty and welfare," Journal of Macroeconomics, Elsevier, vol. 35(C), pages 73-80.
    21. Cornel OROS & Blandine ZIMMER, 2019. "Myopic governments and conservative central banks: are they compatible?," Working Papers of LaRGE Research Center 2019-06, Laboratoire de Recherche en Gestion et Economie (LaRGE), Université de Strasbourg.
    22. Sylvia Kaufmann & Johann Scharler, 2009. "Bank-Lending Standards, the Cost Channel and Inflation Dynamics," Economics working papers 2009-16, Department of Economics, Johannes Kepler University Linz, Austria.
    23. Jochen Michaelis, 2012. "Optimal Monetary Policy in a Currency Union: The Role of the Cost Channel," MAGKS Papers on Economics 201203, Philipps-Universität Marburg, Faculty of Business Administration and Economics, Department of Economics (Volkswirtschaftliche Abteilung).
    24. Schmidt Sebastian, 2011. "The Cost Channel, Indeterminacy, and Price-Level versus Inflation Stabilization," The B.E. Journal of Macroeconomics, De Gruyter, vol. 11(1), pages 1-17, January.
    25. Westermeier Andreas, 2010. "The Cost Channel of Monetary Policy Transmission," South East European Journal of Economics and Business, Sciendo, vol. 5(1), pages 19-23, April.

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