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Indeterminacy and the Stability Puzzle in Non-Convex Economies

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  • Evans George W

    () (University of Oregon)

  • McGough Bruce

    () (Oregon State University)

Abstract

We examine stability under learning of sunspot equilibria in Real Business Cycle type models with indeterminacies. Our analysis emphasizes the importance of examining alternative representations of sunspot solutions. A general bivariate reduced form contains parameter regions in which sunspots are stable under learning. However, for parameters restricted to those generated by standard models of indeterminacy, we find, under one information assumption, that no stable sunspots exist, and under another information assumption, that they exist only for a very small part of the indeterminacy region. This leads to the following puzzle: why does indeterminacy almost always imply instability in RBC-type models?

Suggested Citation

  • Evans George W & McGough Bruce, 2005. "Indeterminacy and the Stability Puzzle in Non-Convex Economies," The B.E. Journal of Macroeconomics, De Gruyter, vol. 5(1), pages 1-46, September.
  • Handle: RePEc:bpj:bejmac:v:contributions.5:y:2005:i:1:n:8
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    References listed on IDEAS

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    1. Clouse James & Henderson Dale & Orphanides Athanasios & Small David H. & Tinsley P.A., 2003. "Monetary Policy When the Nominal Short-Term Interest Rate is Zero," The B.E. Journal of Macroeconomics, De Gruyter, vol. 3(1), pages 1-65, September.
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    4. Olivier Jeanne & Lars E. O. Svensson, 2007. "Credible Commitment to Optimal Escape from a Liquidity Trap: The Role of the Balance Sheet of an Independent Central Bank," American Economic Review, American Economic Association, vol. 97(1), pages 474-490, March.
    5. Peter A. Tinsley, 1998. "Short rate expectations, term premiums, and central bank use of derivatives to reduce policy uncertainty," Finance and Economics Discussion Series 1999-14, Board of Governors of the Federal Reserve System (U.S.).
    6. Dwight Jaffee, 2003. "The Interest Rate Risk of Fannie Mae and Freddie Mac," Journal of Financial Services Research, Springer;Western Finance Association, vol. 24(1), pages 5-29, August.
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    Citations

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    Cited by:

    1. Evans, George W. & McGough, Bruce, 2005. "Monetary policy, indeterminacy and learning," Journal of Economic Dynamics and Control, Elsevier, pages 1809-1840.
    2. Evans George W & Honkapohja Seppo M.S. & Marimon Ramon, 2007. "Stable Sunspot Equilibria in a Cash-in-Advance Economy," The B.E. Journal of Macroeconomics, De Gruyter, pages 1-38.
    3. Evans George W & Honkapohja Seppo M.S. & Marimon Ramon, 2007. "Stable Sunspot Equilibria in a Cash-in-Advance Economy," The B.E. Journal of Macroeconomics, De Gruyter, pages 1-38.
    4. Chryssi Giannitsarou, 2007. "Balanced Budget Rules and Aggregate Instability: The Role of Consumption Taxes," Economic Journal, Royal Economic Society, vol. 117(523), pages 1423-1435, October.
    5. Weder, Mark, 2003. "On the plausibility of sunspot equilibria," Research in Economics, Elsevier, pages 65-81.
    6. McGough, Bruce & Meng, Qinglai & Xue, Jianpo, 2013. "Expectational stability of sunspot equilibria in non-convex economies," Journal of Economic Dynamics and Control, Elsevier, vol. 37(6), pages 1126-1141.
    7. George W. Evans & Bruce McGough, 2004. "Monetary Policy and Stable Indeterminacy with Inertia," University of Oregon Economics Department Working Papers 2004-4, University of Oregon Economics Department, revised 29 Mar 2004.
    8. Hirose, Yasuo, 2008. "Learnability and equilibrium selection under indeterminacy," Journal of Economic Dynamics and Control, Elsevier, vol. 32(11), pages 3459-3477, November.
    9. Evans, George W. & McGough, Bruce, 2005. "Monetary policy and stable indeterminacy with inertia," Economics Letters, Elsevier, vol. 87(1), pages 1-7, April.
    10. Duffy, John & Xiao, Wei, 2007. "Instability of sunspot equilibria in real business cycle models under adaptive learning," Journal of Monetary Economics, Elsevier, vol. 54(3), pages 879-903, April.
    11. Shea, Paul, 2016. "Short-sighted managers and learnable sunspot equilibria," Journal of Macroeconomics, Elsevier, pages 117-126.

    More about this item

    JEL classification:

    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
    • D84 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Expectations; Speculations

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