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Unemployment in a Cournot Oligopoly Model with Ford Effects

Published online by Cambridge University Press:  17 August 2016

Claude d’Aspremont
Affiliation:
CORE, Université Catholique de Louvain
Rodolphe Dos Santos Ferreira
Affiliation:
BETA, Université Louis Pasteur, Strasbourg
Louis-André Gérard-Varet
Affiliation:
GREQE, Ecole des Hautes Etudes en Sciences Sociales, Marseille
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Summary

A simple general equilibrium model of imperfect competition is introduced with special attention given to the labour market. An extended Cournot equilibrium is defined for any money wage taken as given by the producers. Under some assumptions involuntary unemployment may arise, that is unemployment whatever the given money wage. Specific examples are considered.

Résumé

Résumé

Cet article analyse un modèle simple d’équilibre général en concurrence imparfaite en accordant une attention particulière au marché du travail. Un équilibre étendu de Cournot est défini pour chaque niveau de salaire nominal proposé par les producteurs. Sous certaines conditions, on peut obtenir du chômage involontaire, c’est-à-dire un équilibre avec chômage, quel que soit le niveau de salaire nominal donné. Quelques exemples spécifiques sont considérés.

Type
Research Article
Copyright
Copyright © Université catholique de Louvain, Institut de recherches économiques et sociales 1989 

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Footnotes

*

We thank P. Champsaur, P. Dehez, J. H. Drèze and J.-J. Laffont for helpful comments on an earlier version (CORE D.P. 8408). We owe P. Dehez the idea of a light strenghtening of the results on involuntary unemployment given there: see Dehez (1985), where the case of monopoly is studied. We also thank an anonymous referee and R. Gary-Bobo for useful comments on the present version. This work is part of the program “Micro-décisions et politique économique” of Commissariat Général au Plan. Financial support of Commissariat Général au Plan is gratefully acknowledged.

References

D’Aspremont, CI., Dos Santos Ferreira, R, and GÉRard-Varet, L. R. (1984), Oligopoly and involuntary unemployment, CORE Discussion Paper 8408, Louvain-la-Neuve, Université Catholique de Louvain.Google Scholar
D’Aspremont, CI., Dos Santos Ferreira, R. and GÉRard-Varet, L. R. (1986), On monopolistic competition and involuntary unemployment, CORE Discussion Paper 8635, Louvain-la-Neuve, Université Catholique de Louvain.Google Scholar
D’Aspremont, CI., Dos Santos Ferreira, R. and GÉRard-Varet, L. R. (1989), Unemployment in an extended Cournot oligopoly model, forthcoming in Oxford Economic Papers.Google Scholar
Benassy, J.-P. (1988), The objective demand curve in general equilibrium with price makers, Supplement to the Economic Journal, 98, 3749.Google Scholar
Debreu, G. (1952), A social equilibrium existence theorem, Proceedings of the National Academy of Sciences, 38, 886893.Google Scholar
Dehez, P. (1985), Monopolistic equilibrium and involuntary unemployment, Journal of Economic Theory, 36, 160165.Google Scholar
Ford, H. (1922), My life and work, in collaboration with Crowther, S., William Heinemann, London, 1924.Google Scholar
Gabszewicz, J. and Vial, J.-Ph. (1972), Oligopoly “à la Cournot” in general equilibrium analysis, Journal of Economic Theory, 4, 381400.Google Scholar
Gary-Bobo, R. (1987), Equilibre général et concurrence imparfaite, Thèse de doctorat en sciences économiques, Université de Paris I.Google Scholar
Grandmont, J.-M. (1977), Temporary general equilibrium theory, Econometrica, 45, 535572.Google Scholar
Hart, O. D. (1982), A model of imperfect competition with Keynesian features, Quarterly Journal of Economics, 97, 109138.Google Scholar
Hart, O. D. (1985), Imperfect competition in general equilibrium: an overview of recent work, in: Arrow, K. J. and Honkapohja, S. (eds.), Frontiers of Economics, Oxford, B. Blackwell.Google Scholar
Heller, W. P. (1986), Coordination failure under complete markets with applications to effective demand, in: Heller, W. P. Starr, R. M. and Starrett, D. A. (eds.), Equilibrium Analysis. Essays in Honor of Kenneth J. Arrow, volume II, Cambridge, Cambridge University Press.Google Scholar
Keynes, J. M. (1936), The general theory of employment interest and money, Collected Writings of John Maynard Keynes, Vol. 7, London, St. Martin’s Press for the Royal Economic Society, 1973.Google Scholar
Marschak, T. and Selten, R. (1974), General Equilibrium with Price-Making Firms, Berlin, Springer-Verlag.Google Scholar
Negishi, T. (1961), Monopolistic competition and general equilibrium, Review of Economic Studies, 28, 196201.Google Scholar
Negishi, T. (1979), Microeconomic Foundations of Keynesian Macroeconomics, Amsterdam, North-Holland.Google Scholar
Novshek, W. (1985), On the existence of Cournot equilibrium, Review of Economic Studies, 52, 8598.Google Scholar
Roberts, J. (1986), Involuntary unemployment and imperfect competition: a game theoretic macro model, mimeo, to appear in: Feiwel, G. (ed.), The Economics of Imperfect Competition: Joan Robinson and Beyond, London, Macmillan.Google Scholar
Silvestre, J. (1987), There may be unemployment when the labor market is competitive and the output market is not, Discussion Paper 316, Davis, University of California.Google Scholar
Triffin, R. (1940), Monopolistic Competition and General Equilibrium Theory, Harvard, Harvard University Press.Google Scholar