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Discretionary Policy and Multiple Equilibria in LQ RE Models

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  • Blake, Andrew P.
  • Kirsanova, Tatiana

Abstract

We study discretionary equilibria in dynamic linear-quadratic rational expectations models. In contrast to the assumptions that pervade this literature we show that these models do have multiple equilibria in some situations. We demonstrate the existence of multiple discretionary equilibria by example. We investigate general properties of discretionary equilibria and discuss implications for numerical algorithms.

Suggested Citation

  • Blake, Andrew P. & Kirsanova, Tatiana, 2006. "Discretionary Policy and Multiple Equilibria in LQ RE Models," MPRA Paper 21901, University Library of Munich, Germany, revised 01 Apr 2010.
  • Handle: RePEc:pra:mprapa:21901
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    More about this item

    Keywords

    Time Consistency; Discretion; Multiple Equilibria; LQ RE models;
    All these keywords.

    JEL classification:

    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • C61 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Optimization Techniques; Programming Models; Dynamic Analysis
    • E61 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - Policy Objectives; Policy Designs and Consistency; Policy Coordination

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