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Les variables économiques latentes

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  • Alain Bonnafous

Abstract

[fre] L'objet de cette étude est d'explorer les possibilités offertes par l'analyse factorielle dans le domaine de l'investigation économétrique. En premier lieu, une méthode d'estimation des paramètres d'un modèle à équations linéaires multiples est proposée. Dépouillée d'hypothèses causales ou probabilistes, elle repose sur les propriétés statistiques des variables latentes décelées par l'analyse factorielle. Ce type d'application ne peut qu'être postérieur à la phase tradition­nelle de conceptualisation. En second lieu, nous tentons de préciser dans quelle mesure l'interprétation économique des variables latentes permet de compléter ou de remettre en cause la conceptualisation du modèle. Ces perspectives métho­dologiques sont illustrées par les expérimentations que nous avons réalisées sur le modèle de Klein 1 : les résultats de la méthode d'estimation proposée sont confrontés à ceux qu'apportent les méthodes traditionnelles et une interprétation est avancée pour chacune des variables latentes non négligeables de l'échantillon. [eng] This study is done to define the application of factor analysis based on principle components, to econometrics and more precisely to the building of linear equation Systems. Because of the limits of on entirely inductive research of equations, which exist in the economical and statistical reality, we start, in a first stage, from the System of equations, which is assumed in the traditional phase of conceptualisation. A method of estimation is then offered. Without any causal and probabilistic assumption, it is based on statistical properties of latent variables, shown by factor analysis. Finally, we are trying to defiine to what extent the economical interpretation of latent variables allows to complete or to re-assess the model. Those methodological prospects are completed by the expe­rimentations that ware have done on the Klein model 1 : the results of the offered estimation method are opposed to those, brought by the traditional methods, and an interpretation is given for each of the non negligible latent variable of the sample.

Suggested Citation

  • Alain Bonnafous, 1971. "Les variables économiques latentes," Revue Économique, Programme National Persée, vol. 22(4), pages 657-684.
  • Handle: RePEc:prs:reveco:reco_0035-2764_1971_num_22_4_407983
    DOI: 10.3406/reco.1971.407983
    Note: DOI:10.3406/reco.1971.407983
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