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Eductive Stability in Real Business Cycle Models

Author

Listed:
  • George W. Evans

    (University of Oregon Economics Department and University of St. Andrews)

  • Roger Guesnerie

    (Paris School of Economics and Collège de France)

  • Bruce McGough

    (Oregon State University)

Abstract

We reexamine issues of coordination in the standard RBC model. Is the unique rational expectations equilibrium attainable by rational agents who contemplate the possibility of small deviations from equilibrium? Surprisingly, we find that coordination cannot be expected. Even with strong common knowledge assumptions, rational agents anticipating small but persistent deviations are led to take actions that eventually contradict the common knowledge assumption. This “impossibility†theorem for eductive learning is not fully overcome when adaptive learning is incorporated into the framework.

Suggested Citation

  • George W. Evans & Roger Guesnerie & Bruce McGough, 2010. "Eductive Stability in Real Business Cycle Models," University of Oregon Economics Department Working Papers 2010-16, University of Oregon Economics Department.
    • Handle: RePEc:ore:uoecwp:2010-16
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    File URL: http://economics.uoregon.edu/papers/UO-2010-16_Evans_Eductive_Stability.pdf
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    2. Bao, Te & Dai, Yun & Duffy, John, 2025. "Least squares learning? Evidence from the laboratory," Journal of Economic Dynamics and Control, Elsevier, vol. 172(C).
    3. Gabriel Desgranges & Sayantan Ghosal, 2021. "Partial Consensus in Large Games and Markets," Working Papers 2021_02, Business School - Economics, University of Glasgow.
    4. Evans, George W. & Hommes, Cars & McGough, Bruce & Salle, Isabelle, 2022. "Are long-horizon expectations (de-)stabilizing? Theory and experiments," Journal of Monetary Economics, Elsevier, vol. 132(C), pages 44-63.
    5. Kuhle, Wolfgang, 2021. "Equilibrium with computationally constrained agents," Mathematical Social Sciences, Elsevier, vol. 109(C), pages 77-92.
    6. Gabriel Desgranges & Sayantan Ghosal, 2021. "Heterogeneous beliefs and approximately self-fulfilling outcomes," Working Papers 2021_07, Business School - Economics, University of Glasgow.
    7. Evans, George & Honkapohja, Seppo, 2011. "Learning as a rational foundation for macroeconomics and finance," Bank of Finland Research Discussion Papers 8/2011, Bank of Finland.

    More about this item

    Keywords

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    JEL classification:

    • D84 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Expectations; Speculations
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • C62 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Existence and Stability Conditions of Equilibrium

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