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The Zero Interest Rate Policy

  • Tomohiro Sugo

    (Research and Statistics Department, Bank of Japan (E-mail: tomohiro.sugou @boj.or.jp))

  • Yuki Teranishi

    (Associate Director, Institute for Monetary and Economic Studies, Bank of Japan (E-mail: yuuki.teranishi @boj.or.jp))

This paper derives a generalized optimal interest rate rule that is optimal even under a zero lower bound on nominal interest rates in an otherwise basic New Keynesian model with inflation inertia. Using this optimal rule, we investigate optimal entrance and exit strategies of the zero interest rate policy (ZIP) under the realistic model with inflation inertia and a variety of shocks. The simulation results reveal that the shapes of the entrance and exit strategies in a ZIP change considerably according to the forward- or backward-lookingness of the economy and the size of the shocks. In particular, for large shocks that result in long ZIP periods, the time to the start (end) of the ZIP period is earlier (later) in an economy with inflation inertia than in a purely forward-looking economy. However, these outcomes are surprisingly converse to small shocks that result in short ZIP periods.

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File URL: http://www.imes.boj.or.jp/research/papers/english/08-E-20.pdf
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Paper provided by Institute for Monetary and Economic Studies, Bank of Japan in its series IMES Discussion Paper Series with number 08-E-20.

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Date of creation: Aug 2008
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Handle: RePEc:ime:imedps:08-e-20
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  1. Frank Smets & Raf Wouters, 2002. "An estimated dynamic stochastic general equilibrium model of the euro area," Working Paper Research 35, National Bank of Belgium.
  2. Adam, Klaus & Billi, Roberto M., 2005. "Discretionary monetary policy and the zero lower bound on nominal interest rates," CFS Working Paper Series 2005/16, Center for Financial Studies (CFS).
  3. Clarida, Richard & Galí, Jordi & Gertler, Mark, 1999. "The Science of Monetary Policy: A New Keynesian Perspective," CEPR Discussion Papers 2139, C.E.P.R. Discussion Papers.
  4. David Reifschneider & John C. Williams, 1999. "Three lessons for monetary policy in a low inflation era," Finance and Economics Discussion Series 1999-44, Board of Governors of the Federal Reserve System (U.S.).
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  7. Anton Nakov, 2008. "Optimal and Simple Monetary Policy Rules with Zero Floor on the Nominal Interest Rate," International Journal of Central Banking, International Journal of Central Banking, vol. 4(2), pages 73-127, June.
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  9. Jung, Taehun & Teranishi, Yuki & Watanabe, Tsutomu, 2005. "Optimal Monetary Policy at the Zero-Interest-Rate Bound," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 37(5), pages 813-35, October.
  10. Amato, Jeffery D. & Laubach, Thomas, 2003. "Estimation and control of an optimization-based model with sticky prices and wages," Journal of Economic Dynamics and Control, Elsevier, vol. 27(7), pages 1181-1215, May.
  11. Roberto M. Billi & Klaus Adam, 2004. "Optimal Monetary Policy under Commitment with a Zero Bound on Nominal Interest Rates," Computing in Economics and Finance 2004 67, Society for Computational Economics.
  12. Amato, Jeffery D. & Laubach, Thomas, 2003. "Rule-of-thumb behaviour and monetary policy," European Economic Review, Elsevier, vol. 47(5), pages 791-831, October.
  13. Reifschneider, David & Willams, John C, 2000. "Three Lessons for Monetary Policy in a Low-Inflation Era," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 32(4), pages 936-66, November.
  14. Jón Steinsson, 2000. "Optimal monetary policy in an economy with inflation persistence," Economics wp11, Department of Economics, Central bank of Iceland.
  15. Sugo, Tomohiro & Teranishi, Yuki, 2005. "The optimal monetary policy rule under the non-negativity constraint on nominal interest rates," Economics Letters, Elsevier, vol. 89(1), pages 95-100, October.
  16. Galí, Jordi & Gertler, Mark, 1999. "Inflation Dynamics: A Structural Economic Analysis," CEPR Discussion Papers 2246, C.E.P.R. Discussion Papers.
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