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Chocs de demande et fluctuations du taux de marge : une évaluation du modèle de collusion implicite

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  • Frédéric DUFOURT

    (EUREQUA, Université de Paris 1)

Abstract

Cet article propose une évaluation quantitative du modèle de collusion implicite de Rotemberg et Woodford (1992), en s'appuyant sur une version totalement spécifiée qui permet notamment une détermination analytique de l'élasticité du taux de marge face aux variations de la demande agrégée. Dans ce cadre, on montre qu'un tel mécanisme ne parvient pas à générer des effets réels suffisants pour reproduire un certain nombre de faits stylisés importants associés aux chocs de demande, tels que la réaction procyclique de la production, de l'emploi et du salaire réel. Comparé à des mécanismes concurrents de fluctuations des marges évalués dans un cadre analytique similaire, le mécanisme de collusion implicite semble donc avoir des difficultés à s'imposer à lui seul comme une explication dominante de la transmission des chocs de demande à l'activité économique.

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Bibliographic Info

Paper provided by Université catholique de Louvain, Institut de Recherches Economiques et Sociales (IRES) in its series Discussion Papers (REL - Recherches Economiques de Louvain) with number 2001015.

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Length: 21
Date of creation: 01 Mar 2001
Date of revision:
Handle: RePEc:ctl:louvre:2001015

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  1. Rotemberg, Julio J & Woodford, Michael, 1996. "Imperfect Competition and the Effects of Energy Price Increases on Economic Activity," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 28(4), pages 550-77, November.
  2. Dixit, Avinash K & Stiglitz, Joseph E, 1977. "Monopolistic Competition and Optimum Product Diversity," American Economic Review, American Economic Association, vol. 67(3), pages 297-308, June.
  3. Hairault, J.O. & Portier, F., 1992. "Money New-Keynesian Macroeconomics and the Business Cycles," Papiers d'Economie Mathématique et Applications 92.32, Université Panthéon-Sorbonne (Paris 1).
  4. Jordi Gali, 1999. "Technology, Employment, and the Business Cycle: Do Technology Shocks Explain Aggregate Fluctuations?," American Economic Review, American Economic Association, vol. 89(1), pages 249-271, March.
  5. Morrison, C J, 1994. "The Cyclical Nature of Markups in Canadian Manufacturing: A Production Theory Approach," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 9(3), pages 269-82, July-Sept.
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