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Dupuit and Walras on The Natural Monopoly in Transport Industries: What They Really Wrote and Meant

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Date
2012
Link to item file
http://ssrn.com/abstract=1525366
Dewey
Théorie économique
Sujet
Walras; Natural Monopoly; Railroads; Regulation; Vertical Unbundling; Competition; Dupuit
JEL code
B10; D42; L51; L92
Journal issue
History of Political Economy
Volume
44
Number
1
Publication date
2012
Article pages
69-95
Publisher
Duke University Press
DOI
http://dx.doi.org/10.1215/00182702-1504059
URI
https://basepub.dauphine.fr/handle/123456789/2872
Collections
  • LEDa : Publications
Metadata
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Author
Numa, Guy
Type
Article accepté pour publication ou publié
Abstract (EN)
In this article, I analyze and compare the contributions of Dupuit and Walras on the natural monopoly of railroads. Both theorists argued that inland waterways—as opposed to railroads—could be vertically unbundled, a point which previous authors who compared their views failed to point out. Moreover, until now, Dupuit’s analysis of the railroad monopolies before the Société d’Economie Politique has been overlooked. This article fills this gap in the literature by showing that Dupuit and Walras both concluded that railroads were better managed under the monopoly regime; however they drew upon different perspectives. I argue that Dupuit was more pragmatic using the concept of “de facto monopoly” while Walras was more ideological arguing that the railroad industry was a public utility. In so doing, I underline that Dupuit did not oppose government intervention, counter to a few misrepresentations and fallacies in the literature.

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