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The Jones R&D Growth Model: Comment on Stability

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  • Arnold, Lutz G.

Abstract

The dynamics of most prominent endogenous growth models are well understood. One notable exception is the Jones (1995) R&D growth model. This paper provides an analytical treatment of this model's transitional dynamics. It is shown that, given constant returns to labor in R&D (as conventionally assumed in R\&D growth models), a unique trajectory converging to the balanced growth path exists. The equilibrium growth path can be monotonic or oscillatory. Moreover, applying a theorem from Arnold (2004), this result can be used to characterize the dynamic behavior of the multi-country open-economy version of the model. Von den meisten wichtigen Modellen endogenen Wachstums ist das dynamische Verhalten abschließend untersucht und wohlbekannt. Eine wichtige Ausnahme ist das Jones- (1995) F&E-Wachstumsmodell. In diesem Paper wird gezeigt, dass unter der üblichen Annahme konstanter Grenzerträge von Arbeit in F&E ein eindeutiger Wachstumspfad existiert, der die Jones-Ökonomie in ihr stationäres Gleichgewicht führt. Dieser Gleichgewichtspfad kann monoton sein oder gedämpft oszillieren. Durch die Anwendung eines Theorems aus einer verwandten Arbeit folgt darüber hinaus, dass dieses Stabilitätsergebnis auch auf die Mehr-Länder-Version des Jones-Modells übertragen werden kann.

Suggested Citation

  • Arnold, Lutz G., 2005. "The Jones R&D Growth Model: Comment on Stability," University of Regensburg Working Papers in Business, Economics and Management Information Systems 405, University of Regensburg, Department of Economics.
  • Handle: RePEc:bay:rdwiwi:478
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    File URL: https://epub.uni-regensburg.de/4520/1/jones_model_dynamics.pdf
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    Cited by:

    1. Sequeira, Tiago Neves, 2011. "R&D Spillovers In An Endogenous Growth Model With Physical Capital, Human Capital, And Varieties," Macroeconomic Dynamics, Cambridge University Press, vol. 15(2), pages 223-239, April.

    More about this item

    Keywords

    Endogenes Wirtschaftswachstum ; Dynamische Stabilität; ; endogenous growth ; stability;
    All these keywords.

    JEL classification:

    • F12 - International Economics - - Trade - - - Models of Trade with Imperfect Competition and Scale Economies; Fragmentation
    • O41 - Economic Development, Innovation, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - One, Two, and Multisector Growth Models

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