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Heterogeneous Learning

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Author Info
Chryssi Giannitsarou (Universidade Nova de Lisboa)

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Abstract

There is by now a large literature characterising conditions under which learning schemes converge to rational expectations equilibria (REEs). It has been claimed that these results depend on the assumption of homogeneous agents and homogeneous learning. This paper analyses the stability of REEs under heterogeneous adaptative learning, for the class of self-referential linear stochastic models. Agents may differ in their initial perceptions about the evolution of the economy, the degrees of inertia in revising their expectations, or the learning rules they use. General conditions are provided for local stability of an REE. In general, it is not possible to show that stability inder homogeneous learning implies stability under heterogeenous learning. To illustrate how to apply the results, several examples are provided. (Copyright: Elsevier)

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File URL: http://dx.doi.org/10.1016/S1094-2025(03)00011-5
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Publisher Info
Article provided by Elsevier for the Society for Economic Dynamics in its journal Review of Economic Dynamics.

Volume (Year): 6 (2003)
Issue (Month): 4 (October)
Pages: 885-906
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Handle: RePEc:red:issued:v:6:y:2003:i:4:p:885-906

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Related research
Keywords: adaptative learning; heterogeneity; stability of equilibria;

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Find related papers by JEL classification:
D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search, Learning, and Information
C62 - Mathematical and Quantitative Methods - - Mathematical Methods and Programming - - - Existence and Stability Conditions of Equilibrium

References listed on IDEAS
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    Other versions:
  3. Seppo Honkapohja & Kaushik Mitra, 2006. "Learning Stability in Economies with Heterogeneous Agents," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 9(2), pages 284-309, April. [Downloadable!] (restricted)
    Other versions:
  4. Chryssi Giannitsarou, 2004. "Supply-side reforms and learning dynamics," Money Macro and Finance (MMF) Research Group Conference 2003 36, Money Macro and Finance Research Group. [Downloadable!]
    Other versions:
  5. Jean-Michel Grandmont, 1998. "Expectations Formation and Stability of Large Socioeconomic Systems," Econometrica, Econometric Society, vol. 66(4), pages 741-782, July.
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    Other versions:
Full references

Cited by:
(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

  1. Eran Guse, 2004. "Expectational Business Cycles," Money Macro and Finance (MMF) Research Group Conference 2004 97, Money Macro and Finance Research Group. [Downloadable!]
    Other versions:
  2. Gaetano Gaballo, 2008. "Interactive Learning and Behavioral Sunspots," Department of Economic Policy, Finance and Development (DEPFID) University of Siena 1008, Department of Economic Policy, Finance and Development (DEPFID), University of Siena. [Downloadable!]
  3. Orlando Gomes, 2008. "Adaptive Learning and Complex Dynamics," Working Papers ercwp2108, ISCTE, UNIDE, Economics Research Centre. [Downloadable!]
  4. Sergey Slobodyan & Anna Bogomolova & Dmitri Kolyuzhnov, 2006. "Stochastic Gradient versus Recursive Least Squares Learning," Computing in Economics and Finance 2006 446, Society for Computational Economics. [Downloadable!]
  5. Evans , George W & Honkapohja, Seppo, 2007. "Expectations, learning and monetary policy: an overview of recent research," Research Discussion Papers 32/2007, Bank of Finland. [Downloadable!]
    Other versions:
  6. Chryssi Giannitsarou, 2004. "Supply-side reforms and learning dynamics," Money Macro and Finance (MMF) Research Group Conference 2003 36, Money Macro and Finance Research Group. [Downloadable!]
    Other versions:
  7. Orlando Gomes & Vivaldo M. Mendes & Diana A. Mendes, 2007. "The Dynamics of Learning in Optimal Monetary Policy," Working Papers ercwp2008, ISCTE, UNIDE, Economics Research Centre. [Downloadable!]
  8. Eran Guse, 2004. "Learning with Heterogeneous Expectations in an Evolutionary World," Computing in Economics and Finance 2004 99, Society for Computational Economics. [Downloadable!]
    Other versions:
  9. Jasmina Arifovic & James B. Bullard & Olena Kostyshyna, 2007. "Social learning and monetary policy rules," Working Papers 2007-007, Federal Reserve Bank of St. Louis. [Downloadable!]
  10. Granato, J. & Guse, E. & Sunny Wong, M.C., 2006. "Learning from the Expectations of Others," Cambridge Working Papers in Economics 0605, Faculty of Economics, University of Cambridge. [Downloadable!]
    Other versions:
  11. Seppo Honkapohja & Kaushik Mitra, 2006. "Learning Stability in Economies with Heterogeneous Agents," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 9(2), pages 284-309, April. [Downloadable!] (restricted)
    Other versions:
  12. Ricardo Nunes, 2005. "Learning the inflation target," Macroeconomics 0504033, EconWPA, revised 26 Apr 2005. [Downloadable!]
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