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The Two‐Sector Growth Model With A Fixed‐Coefficient Technology

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  • Alfred Ocker

Abstract

The paper is concerned with the conditions for existence and stability of the steady‐state growth path in a two‐sector model with fixed factor coefficients, and their correspondence to the respective conditions for the usual neoclassical model so well scrutinized. The analysis displays the strong resemblance of these conditions in both models. Especially, a sufficient condition for local stability in the neoclassical model comes out as the necessary condition for global stability in this model. And once more the capital‐intensity hypothesis is of crucial importance. Of course, the conditions referring to substitution possibilities must be abandoned, but otherwise, as in the neoclassical framework, if only the capital‐intensity condition is satisfied, the conditions ensuring the uniqueness of the momentary equilibrium, also suffice for the global stability of the ensuing steady‐state path. The analysis gives reasons for this coincidence by explicating the relation‐ships which render this result. Die Arbeit untersucht die Bedingungen für Existenz and Stabilität stetiger Gleichgewichtspfade in einem Zwei‐Sektoren‐Modell mit fixen Produktionskoeffizienten. Insbesondere zeigt sie die grosse Ähnlichkeit dieser Bedingungen mit denen des bekannten Modells vom Uzawa‐Typus. So wird eine für das neoklassische Modell hinreichende Bedingung für lokale Stabilität im vorliegenden Modell zur notwendigen Bedingung fur globale Stabilität. Darüber hinaus unterstreichen die Ergebnisse wieder einmal die Bedeutung, die der Annahme über die Relation der Kapitalintensitäten der beiden Sektoren fur die Stabilitätsanalyse in Zwei‐Sektoren‐Modellen zerfällt. Vorausgesetzt, dass die Konsumguterindüstrie die kapitalintensivere Produktion verkörpert, sind – ganz wie im neoklassischen Modell ‐ die Bedingungen, die die Eindeutigkeit des momentanen Gleichgewichts gewährleisten, auch hinreichend fur die globale Stabilität des stetigen Wachstumspfades. Die Gründe für diese Koinzidenz der Bedingungen werden an den dem Modell inhärenten Zusammenhängen verdeutlicht. Le présent article analyse, d'une part, les conditions d'existence et de stabilité de fuseaux réguliers d'équilibre dans un modèle à deux secteurs avec des coefficients de production constants, d'autre part, son analogie avec les conditions respectives du modèle néo‐classique. L'analyse montre la grande ressemblance des différentes conditions dans les deux modèles. Ainsi, une condition suffisante en ce qui concerne la stabilite locale dans le modèle néo‐classique apparaît comme une condition nécessaire à la stabilité globale dans le présent modèle. Une fois encore, l'hypothèse de l'intensité du capital est d'une importance décisive. C'est pourquoi les conditions relatives aux possibilités de substitution doivent être abandonnées. Mais, par ailleurs, selon le modèle néo‐classique, dans l'hypothèse où la condition de l'intensité du capital seule est satisfaite, les conditions qui garantissent l'originalité de l'équilibre momentané sont également suffisantes en ce qui concerne la stabilité globale du fuseau de croissance qui en résulte. L'analyse révèle les raisons de cette coincidence en expliquant la relation qui traduit ce résultat.

Suggested Citation

  • Alfred Ocker, 1971. "The Two‐Sector Growth Model With A Fixed‐Coefficient Technology," Kyklos, Wiley Blackwell, vol. 24(2), pages 257-280, May.
  • Handle: RePEc:bla:kyklos:v:24:y:1971:i:2:p:257-280
    DOI: 10.1111/j.1467-6435.1971.tb00809.x
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