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Optimal Monetary Policy in a Currency Union: The Role of the Cost Channel

  • Jochen Michaelis

    ()

    (University of Kassel)

In this paper we introduce the cost channel of monetary policy (e.g., Ravenna and Walsh, 2006) into an otherwise standard New Keynesian model of a two-country monetary union, which is being hit by aggregate, asymmetric and idiosyncratic shocks. The single central bank implements the optimal discretionary monetary policy by setting the union interest rate. The cost channel makes monetary policy less effective in combating in?action, but it is shown that the optimal response to the decline in effectiveness is a stronger use of the instrument. Moreover, we show how the sign of the spillover effects of idiosyncratic shocks depends on the strength of the cost channel. If the cost channel exceeds a well-defined threshold, then the interest rate turns into a supply-side instrument.

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File URL: https://www.uni-marburg.de/fb02/makro/forschung/magkspapers/03-2012_michaelis.pdf
File Function: First version, 2012
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Paper provided by Philipps-Universität Marburg, Faculty of Business Administration and Economics, Department of Economics (Volkswirtschaftliche Abteilung) in its series MAGKS Papers on Economics with number 201203.

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Length: 23 pages
Date of creation: 2012
Date of revision:
Publication status: Forthcoming in
Handle: RePEc:mar:magkse:201203
Contact details of provider: Postal: Universitätsstraße 25, 35037 Marburg
Phone: 06421/28-1722
Fax: 06421/28-4858
Web page: http://www.uni-marburg.de/fb02/
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  1. Lawrence J. Christiano & Martin Eichenbaum & Charles Evans, 2001. "Nominal rigidities and the dynamic effects of a shock to monetary policy," Working Paper 0107, Federal Reserve Bank of Cleveland.
  2. Martina Cecioni, 2010. "External trade and monetary policy in a currency area," Temi di discussione (Economic working papers) 738, Bank of Italy, Economic Research and International Relations Area.
  3. Beetsma, Roel & Jensen, Henrik, 2002. "Monetary and fiscal policy interactions in a micro-founded model of a monetary union," Working Paper Series 0166, European Central Bank.
  4. Benigno, Pierpaolo, 2001. "Optimal Monetary Policy in a Currency Area," CEPR Discussion Papers 2755, C.E.P.R. Discussion Papers.
  5. Olivier Blanchard & Jordi Gali, 2008. "Labor Markets and Monetary Policy: A New-Keynesian Model with Unemployment," NBER Working Papers 13897, National Bureau of Economic Research, Inc.
  6. Benigno, Pierpaolo & Woodford, Michael, 2012. "Linear-quadratic approximation of optimal policy problems," Journal of Economic Theory, Elsevier, vol. 147(1), pages 1-42.
  7. Bernanke, Ben & Gertler, Mark, 1995. "Inside the Black Box: The Credit Channel of Monetary Policy Transmission," Working Papers 95-15, C.V. Starr Center for Applied Economics, New York University.
  8. Ferrero, Andrea, 2009. "Fiscal and monetary rules for a currency union," Journal of International Economics, Elsevier, vol. 77(1), pages 1-10, February.
  9. Lane, P, 1999. "Asymmetric Shocks and Monetary Policy in a Currency Union," Trinity Economics Papers 994, Trinity College Dublin, Department of Economics.
  10. Steffen Henzel & Oliver Hülsewig & Eric Mayer & Timo Wollmershäuser, 2007. "The Price Puzzle Revisited: Can the Cost Channel Explain a Rise in Inflation after a Monetary Policy Shock?," CESifo Working Paper Series 2039, CESifo Group Munich.
  11. Tillmann, Peter, 2009. "The time-varying cost channel of monetary transmission," Journal of International Money and Finance, Elsevier, vol. 28(6), pages 941-953, October.
  12. Bergin, Paul R., 2006. "How well can the New Open Economy Macroeconomics explain the exchange rate and current account?," Journal of International Money and Finance, Elsevier, vol. 25(5), pages 675-701, August.
  13. De Paoli, Bianca, 2009. "Monetary policy and welfare in a small open economy," Journal of International Economics, Elsevier, vol. 77(1), pages 11-22, February.
  14. Vasco Gabriel & Luis Martins, 2010. "The Cost Channel Reconsidered: A Comment Using an Identification-Robust Approach," School of Economics Discussion Papers 1010, School of Economics, University of Surrey.
  15. Lombardo, Giovanni, 2006. "Inflation targeting rules and welfare in an asymmetric currency area," Journal of International Economics, Elsevier, vol. 68(2), pages 424-442, March.
  16. Bernanke, B. & Gertler, M. & Gilchrist, S., 1998. "The Financial Accelerator in a Quantitative Business Cycle Framework," Working Papers 98-03, C.V. Starr Center for Applied Economics, New York University.
  17. Surico, Paolo, 2008. "The Cost Channel Of Monetary Policy And Indeterminacy," Macroeconomic Dynamics, Cambridge University Press, vol. 12(05), pages 724-735, November.
  18. 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.
  19. Sutherland, Alan, 2002. "A Simple Second-Order Solution Method For Dynamic General Equilibrium Models," CEPR Discussion Papers 3554, C.E.P.R. Discussion Papers.
  20. Chowdhury, Ibrahim & Hoffmann, Mathias & Schabert, Andreas, 2004. "Inflation dynamics and the cost channel of monetary transmission," CFR Working Papers 04-01, University of Cologne, Centre for Financial Research (CFR).
  21. Stefano Gnocchi, 2009. "Non-Atomistic Wage Setters and Monetary Policy in a New Keynesian Framework," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 41(8), pages 1613-1630, December.
  22. Calvo, Guillermo A., 1983. "Staggered prices in a utility-maximizing framework," Journal of Monetary Economics, Elsevier, vol. 12(3), pages 383-398, September.
  23. Rabanal, Pau, 2007. "Does inflation increase after a monetary policy tightening? Answers based on an estimated DSGE model," Journal of Economic Dynamics and Control, Elsevier, vol. 31(3), pages 906-937, March.
  24. 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, 08.
  25. Gabe J. de Bondt, 2005. "Interest Rate Pass-Through: Empirical Results for the Euro Area," German Economic Review, Verein für Socialpolitik, vol. 6(1), pages 37-78, 02.
  26. 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.
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