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The instability Principle revisited: an essay in Harrodian Dynamics

Author

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  • Muriel Dal-Pont Legrand

    (GREDEG - Groupe de Recherche en Droit, Economie et Gestion - UNS - Université Nice Sophia Antipolis (1965 - 2019) - CNRS - Centre National de la Recherche Scientifique - UniCA - Université Côte d'Azur)

  • Olivier Bruno

    (GREDEG - Groupe de Recherche en Droit, Economie et Gestion - UNS - Université Nice Sophia Antipolis (1965 - 2019) - CNRS - Centre National de la Recherche Scientifique - UniCA - Université Côte d'Azur)

Abstract

Harrod's contribution to economic dynamics is very often reduced to the dynamic equation whose character is unstable. Growth theory and cycle theory based on Harrod's contributions aimed at reducing this instability. Following Harrod, who was strongly opposed to the 'knife-edge' interpretation, we define the warranted rate of growth as a 'moving equilibrium' and focus on its interaction with the effective rate of growth. Our simple Harrodian model generates various dynamics from stable path, to growth cycle and corridor of stability.

Suggested Citation

  • Muriel Dal-Pont Legrand & Olivier Bruno, 2014. "The instability Principle revisited: an essay in Harrodian Dynamics," Post-Print halshs-01066338, HAL.
    • Handle: RePEc:hal:journl:halshs-01066338
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    Cited by:

    1. Michaël Assous & Olivier Bruno & Muriel Dal-Pont Legrand, 2015. "The Law of Diminishing Elasticity of Demand in Harrod’s Trade Cycle (1936)," GREDEG Working Papers 2015-02, Groupe de REcherche en Droit, Economie, Gestion (GREDEG CNRS), Université Côte d'Azur, France.
    2. Michaël Assous & Muriel Dal Pont Legrand & Harald Hagemann, 2016. "Business cycles and growth," Chapters, in: Gilbert Faccarello & Heinz D. Kurz (ed.), Handbook on the History of Economic Analysis Volume III, chapter 4, pages 27-39, Edward Elgar Publishing.
    3. Jose Perez-Montiel & Carles Manera Erbina, 2019. "Investment Sustained by Consumption: A Linear and Nonlinear Time Series Analysis," Sustainability, MDPI, vol. 11(16), pages 1-15, August.
    4. Mauro BoianovskyBy, 2017. "Optimum saving and growth: Harrod on dynamic welfare economics," Oxford Economic Papers, Oxford University Press, vol. 69(4), pages 1120-1137.
    5. Michaël Assous & Muriel Dal Pont Legrand, 2020. "Growth Without Expectations: The Original Sin of Neoclassical Growth Models," Springer Studies in the History of Economic Thought, in: Arie Arnon & Warren Young & Karine van der Beek (ed.), Expectations, pages 121-130, Springer.
    6. Michaël Assous & Muriel Dal Pont Legrand & Sonia Manseri, 2020. "Samuelson's Neoclassical Synthesis in the Context of Growth Economics, 1956-1967," GREDEG Working Papers 2020-12, Groupe de REcherche en Droit, Economie, Gestion (GREDEG CNRS), Université Côte d'Azur, France.

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