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The Zero Interest Rate Policy

Author

Listed:
  • 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))

Abstract

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.

Suggested Citation

  • Tomohiro Sugo & Yuki Teranishi, 2008. "The Zero Interest Rate Policy," IMES Discussion Paper Series 08-E-20, Institute for Monetary and Economic Studies, Bank of Japan.
  • Handle: RePEc:ime:imedps:08-e-20
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    File URL: http://www.imes.boj.or.jp/research/papers/english/08-E-20.pdf
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    References listed on IDEAS

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    5. 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.
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    Cited by:

    1. Fujiwara, Ippei & Nakajima, Tomoyuki & Sudo, Nao & Teranishi, Yuki, 2013. "Global liquidity trap," Journal of Monetary Economics, Elsevier, vol. 60(8), pages 936-949.
    2. Haberis, Alex & Lipińska, Anna, 2012. "International policy spillovers at the zero lower bound," Bank of England working papers 464, Bank of England.
    3. Andrew Levin & David López-Salido & Edward Nelson & Yack Yun, 2010. "Limitations on the Effectiveness of Forward Guidance at the Zero Lower Bound," International Journal of Central Banking, International Journal of Central Banking, vol. 6(1), pages 143-189, March.
    4. Kohei Hasui & Tomohiro Sugo & Yuki Teranishi, 2016. "Liquidity Trap and Optimal Monetary Policy Revisited," UTokyo Price Project Working Paper Series 061, University of Tokyo, Graduate School of Economics.
    5. Kunio Okina & Shigenori Shiratsuka, 2004. "Policy Duration Effect under Zero Interest Rates: An Application of Wavelet Analysis," CESifo Working Paper Series 1138, CESifo Group Munich.

    More about this item

    Keywords

    Zero Interest Rate Policy; Optimal Interest Rate Rule;

    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

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