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TWO-SECTOR GROWTH, OPTIMAL GROWTH, AND THE TURNPIKE: AMALGAMATION AND METAMORPHOSIS

Published online by Cambridge University Press:  09 October 2013

Stephen Spear  and
Warren Young
Stephen Spear*
Affiliation:
Carnegie Mellon University
Warren Young
Affiliation:
Bar Ilan University
*
Address correspondence to: Stephen E. Spear, Tepper School of Business, Carnegie Mellon University, Pittsburgh, PA 15213, USA; e-mail: ss1f@andrew.cmu.edu.
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Abstract

This paper deals with the development of growth models from the optimal one-sector neoclassical approach of Cass–Malinvaud–Koopmans vintage, through two-sector, multisector, and turnpike models, and proceeds to discuss their displacement by the single-sector stochastic growth model. We also focus on the definitional shift regarding the turnpike. This is done by surveying both unpublished and published work by Uzawa, Cass, Koopmans, and McKenzie regarding growth and the turnpike, the cross-fertilization between them, and how this brought about the conflation of optimality and the turnpike, and the metamorphosis of the notion of the turnpike, from that of Dorfman–Samuelson Solow, to the Koopmans–McKenzie “amalgam” of models. Finally, the appearance of endogenous growth models, based on the work of Shell and Uzawa, is dealt with.

Keywords

Economic HistoryEconomic GrowthTwo-Sector Growth ModelsTurnpike Theory
Type
Articles
Information
Macroeconomic Dynamics , Volume 19 , Issue 2 , March 2015 , pp. 394 - 424
Copyright
Copyright © Cambridge University Press 2013 

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