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Equilibrium Determinacy and Inflation Measures for Interest Rate Rules


  • Marco Airaudo

    (Drexel University)

  • Luis-Felipe Zanna

    (International Monetary Fund)


Empirical evidence suggests that goods are highly heterogeneous with respect to the degree of price rigidity. We develop a two-sector dynamic general equilibrium model to study the equilibrium determinacy properties of interest rate rules that respond to inflation measures differing in their degree of price rigidity. We find that rules responding to a headline measure, which puts some weight on the inflation of the sector with low price stickiness, are more prone to generate endogenous aggregate instability---in the form of fluctuations driven by self-fulfilling expectations and equilibria where fluctuations are unbounded---than rules that respond exclusively to a core measure, which includes only the inflation of the sector with high price stickiness. We discuss how our results depend on the elasticity of substitution across goods, the timing of the policy rule, and reacting to aggregate activity. (Copyright: Elsevier)

Suggested Citation

  • Marco Airaudo & Luis-Felipe Zanna, 2012. "Equilibrium Determinacy and Inflation Measures for Interest Rate Rules," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 15(4), pages 573-592, October.
  • Handle: RePEc:red:issued:10-229
    DOI: 10.1016/

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    References listed on IDEAS

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    Cited by:

    1. repec:bla:ecinqu:v:55:y:2017:i:1:p:601-623 is not listed on IDEAS
    2. Marco Airaudo & Edward F Buffie & Luis-Felipe Zanna, 2016. "Inflation Targeting and Exchange Rate Management In Less Developed Countries," IMF Working Papers 16/55, International Monetary Fund.
    3. Airaudo, Marco, 2012. "Endogenous Dollarization, Sovereign Risk Premia and the Taylor Principle," School of Economics Working Paper Series 2012-11, LeBow College of Business, Drexel University.
    4. Airaudo, Marco, 2014. "Currency substitution, risk premia and the Taylor principle," Journal of Economic Dynamics and Control, Elsevier, vol. 48(C), pages 202-217.
    5. Fujisaki, Seiya, 2012. "Taylor rules and equilibrium determinacy in a two-country model with non-traded goods," MPRA Paper 40023, University Library of Munich, Germany.
    6. repec:eee:jimfin:v:81:y:2018:i:c:p:159-184 is not listed on IDEAS
    7. Fujisaki, Seiya, 2013. "Taylor rules and equilibrium determinacy in a two-country model with non-traded goods," Economic Modelling, Elsevier, vol. 35(C), pages 597-603.

    More about this item


    Interest rate rules; Multiple equilibria; Determinacy; Multiple sectors; Learning; Expectational stability;

    JEL classification:

    • C62 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Existence and Stability Conditions of Equilibrium
    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy


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