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The Eventual Failure and Price Indeterminacy of Inflation Targeting


  • Eagle, David


In stark contrast to the previous literature, we find that IT leads to price indeterminacy even when the central bank uses a Taylor-like feedback rule to peg the nominal interest rate. We also find that there is no mechanism with IT to determine the current inflation rate or price level. We conclude that the previous literature has either committed mathematical errors involving infinity or misused the non-explosive criterion for ruling out speculative bubbles. To avoid making errors involving infinity, we analyze inflation targeting (IT) in a typical rational-expectations, pure-exchange, general-equilibrium model where the time horizon is arbitrarily large, but finite.

Suggested Citation

  • Eagle, David, 2006. "The Eventual Failure and Price Indeterminacy of Inflation Targeting," MPRA Paper 1240, University Library of Munich, Germany, revised 13 Dec 2006.
  • Handle: RePEc:pra:mprapa:1240

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    References listed on IDEAS

    1. Carlstrom, Charles T. & Fuerst, Timothy S., 2001. "Timing and real indeterminacy in monetary models," Journal of Monetary Economics, Elsevier, vol. 47(2), pages 285-298, April.
    2. Bennett McCallum, 1999. "Role of the Minimal State Variable Criterion in Rational Expectations Models," International Tax and Public Finance, Springer;International Institute of Public Finance, vol. 6(4), pages 621-639, November.
    3. Ovidiu L. Calin & Yu Chen & Thomas F. Cosimano & Alex A. Himonas, 2005. "Solving Asset Pricing Models when the Price-Dividend Function Is Analytic," Econometrica, Econometric Society, vol. 73(3), pages 961-982, May.
    4. Blanchard, Olivier Jean & Kahn, Charles M, 1980. "The Solution of Linear Difference Models under Rational Expectations," Econometrica, Econometric Society, vol. 48(5), pages 1305-1311, July.
    5. Sargent, Thomas J & Wallace, Neil, 1975. ""Rational" Expectations, the Optimal Monetary Instrument, and the Optimal Money Supply Rule," Journal of Political Economy, University of Chicago Press, vol. 83(2), pages 241-254, April.
    6. Lucas, Robert Jr, 1976. "Econometric policy evaluation: A critique," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 1(1), pages 19-46, January.
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    Blog mentions

    As found by, the blog aggregator for Economics research:
    1. On the perils of Taylor rules
      by David Andolfatto in MacroMania on 2012-12-29 02:20:00

    More about this item


    inflation targeting; price determinacy; monetary policy; pegging interest rates; errors of infinity;

    JEL classification:

    • E42 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Monetary Sytsems; Standards; Regimes; Government and the Monetary System
    • 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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