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Taux D'Intérět, Distribution Du Revenu, Théorie Des Cycles Vitaux Et Choix Du Portefeuille

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  • MAURO BARANZINI*

Abstract

RÉSUMÉ Le but de cet article est d'étudier les conséquences de l'introduction de l’ hypothese des cycles vitaux dans un modèle de croissance avec deux classes d’épargnants (percepteurs de profits et percepteurs de salaires). Notre analyse montre que dans un tel contexte la détermination du taux d’ intérět d’équilibre (et par conséquent la distribution du revenu) est plus flexible que dans un modèle avec propensions àépargner constantes; toutefois les résultats obtenus tendent à confirmer la validité de l’ analyse des auteurs néokeynesiens KALDOR et PASINETTI. En effet le taux d’ intérět d’équilibre dans notre cas est (a) supérieur au taux de croissance de la population, (b) déterminé uniquement par le comportement des percepteurs de profits, et (c) indépendant de la fonction de production. Quant aux propriétés à long terme du modèle, nous montrons que l’ incertitude relative au taux d’ interet peut ětre un élément stabilisateur pour la croissance équilibrée du modèle. SUMMARY This paper explores the consequences of the introduction of the life‐cycle hypothesis into an economic growth model with two classes of savers (profits earners and wage earners). Our analysis shows that the determination of the equilibrium interest rate is more flexible than in the corresponding model with constant propensities to save; the results obtained are however basically similar to those obtained in the traditional KALDOR/PASINETTI model. As a matter of fact, the rate of interest turns out to be (a) higher than the natural rate of growth, (b) determined by the behavioural parameters of the profits earners only, and (c) independent of the form of the production function. Looking at the long term properties of the model we show that interest uncertainty may have a stabilizing effect on the equilibrium growth rate of the model. ZUSAMMENFASSUNG In diesem Aufsatz wird untersucht, wie sich die Berücksichtigung der Lebenszyklus‐Hypothese in einem Zwei‐Klassen‐Wachstumsmodell auswirkt (die beiden Klassen sindjene der Lohn‐ und Profitbezieher). Unsere Analyse zeigt, dass unter diesen Umständen die Bestimmung der Gleichgewichtsrate des Zinssatzes viel flexibler und umfassender ist, als in einem Wachstumsmodell mit konstanten Sparneigungen. Spezifisch ergibt sich, dass (a) der Zinssatz die natürliche Wachstums‐rate übersteigt, dass (b) der Zinssatz nur durch die Verhaltensparameter der Profitbezieher bestimmt ist und dass (c) dieser unabhängig von der Form der Produk‐tionsfunktion ist. Die Untersuchung der langfristigen Eigenschaften unseres Modells zeigt, dass Unsicherheit in bezug auf den Zinssatz eincn stabilisierenden Effekt auf die Gleichgewichtswachstumsrate des Modells haben kann.

Suggested Citation

  • Mauro Baranzini*, 1981. "Taux D'Intérět, Distribution Du Revenu, Théorie Des Cycles Vitaux Et Choix Du Portefeuille," Kyklos, Wiley Blackwell, vol. 34(4), pages 593-610, November.
  • Handle: RePEc:bla:kyklos:v:34:y:1981:i:4:p:593-610
    DOI: 10.1111/j.1467-6435.1981.tb01208.x
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