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Rationalité cognitive et modélisation

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  • Michel Rosier

Abstract

[fre] Selon B. Walliser, la rationalité économique a deux aspects : 1) instrumental (atteinte d'une fin, par exemple maximisation de l'utilité), 2) cognitif (construction de modèles d'anticipation). Cette thèse est éclairante dans la mesure où elle donne les éléments de base pour structurer le domaine si controversé de l'action humaine. Elle est aussi potentiellement des plus fructueuses, parce qu'elle permet d'expliciter ce que les anticipations rationnelles présupposent. Cependant, dans cette perspective, il faut surmonter une difficulté d'ordre épistémolo- gique, inhérente au fait de concevoir les agents économiques comme des modélisateurs. [eng] According to B. Walliser, the economic rationality has two aspects : 1) instrumental (aiming at some goal, e.g. maximizing utility), 2) cognitive (building models for anticipating). This thesis throws some light on the field, so controversial, of human action by giving the basic keys to map it out. It also opens potentially fruitful perspectives by helping to explicit what the rational expectations idea presupposes. But, moving on along this line, one has to deal with an epistemological difficulty which lies at the very foundations of the conception of economic agents as model-builders.

Suggested Citation

  • Michel Rosier, 1994. "Rationalité cognitive et modélisation," Cahiers d'Économie Politique, Programme National Persée, vol. 24(1), pages 209-225.
  • Handle: RePEc:prs:caecpo:cep_0154-8344_1994_num_24_1_1173
    DOI: 10.3406/cep.1994.1173
    Note: DOI:10.3406/cep.1994.1173
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