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The Zero Interest Rate Policy

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  • 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.

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Bibliographic Info

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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Keywords: Zero Interest Rate Policy; Optimal Interest Rate Rule;

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Cited by:
  1. Taisuke Nakata, 2011. "Optimal Government Spending at the Zero Bound: Nonlinear and Non-Ricardian Analysis," 2011 Meeting Papers 831, Society for Economic Dynamics.
  2. Alex Haberis & Anna Lipinska, 2012. "International policy spillovers at the zero lower bound," Finance and Economics Discussion Series 2012-23, Board of Governors of the Federal Reserve System (U.S.).
  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. 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.

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