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The Neoclassical Optimal Growth Model Revisited: An Explicit Equation for the Saddle path

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Author Info
Khelifi, Aymen A.

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Abstract

The standard title of this paper could be replaced by “the spirit of capitalism as a key to solving for an explicit Ramsey saddle path”. Indeed, starting from a Utility function describing preferences for consumption and savings, the model introduces the concept of the capitalist’s spirit from Max Weber (1905) – with a direct preference for wealth or capital – and becomes similar to the one of Heng-Fu Zou (1994) except that his specification includes the capital stock instead of the flow of saving. Not only does the presented model preserve the long-run implications on growth of countries, such a maximising criterion in the dynamic program allows an interesting application of the Pontryagin’s Maximum Principle, and provides standard results of excellent quality: the model presents an extremely simple expression for the saddle path and becomes both qualitative and quantitative with strong analogies to the exogenous one of R.Solow (1956). The two models are put in relationship through a discussion of the golden rule (E.Phelps 1961), after some analysis of variations.

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Publisher Info
Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 17516.

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Date of creation: 17 Sep 2009
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Handle: RePEc:pra:mprapa:17516

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Related research
Keywords: The Ramsey-Cass-Koopmans model; Saddle path; Saving proportion; Optimal Control Theory; The Spirit of capitalism;

Find related papers by JEL classification:
O41 - Economic Development, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - One, Two, and Multisector Growth Models
D91 - Microeconomics - - Intertemporal Choice and Growth - - - Intertemporal Consumer Choice; Life Cycle Models and Saving
O40 - Economic Development, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - General

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This page was last updated on 2009-12-9.


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