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Apprentissage et équilibres à taches solaires. Un point de vue divinatoire

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Author Info

  • Gabriel Desgranges
  • Giorgio Negroni

Abstract

[fre] Dans un modèle simple à générations imbriquées, on étudie la coordination des anticipations sur un équilibre à taches solaires stationnaire (ESS) au moyen d'une approche « divinatoire » selon laquelle chaque agent s'efforce de deviner les anticipations des autres en tirant les conséquences d'hypothèses de connaissance commune de la rationalité des agents et de l'économie. On présente une caractérisation de la stabilité locale d'un ESS en termes d'élasticité de l'offre de travail et deux résultats d'existence d'ESS localement stables reposant respectivement sur le théorème de Poincaré-Hopf et sur un argument de bifurcation locale. [eng] Learning and sunspot equilibrium: an eductive viewpoint. . In a simple OLG model, we analyze expectations coordination on a Stationary Sunspot Equilibrium (SSE), using an "eductive" approach in which agents forecast the forecasting of other participants through Common Knowledge assumptions. We characterize the local stability of a SSE in terms of labor supply elasticity, and we give two results of existence of locally stable SSE by means both of Poincaré-Hopf Theorem and a local bifurcation argument.

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Bibliographic Info

Article provided by Programme National Persée in its journal Revue économique.

Volume (Year): 52 (2001)
Issue (Month): 3 ()
Pages: 583-593

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Handle: RePEc:prs:reveco:reco_0035-2764_2001_num_52_3_410339

Note: DOI:10.2307/3502872
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Web page: http://www.persee.fr/web/revues/home/prescript/revue/reco

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