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Concurrence Imparfaite, Variabilité du Taux de Marge et Fluctuations Endogènes

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  • Thomas Seegmuller

Abstract

Nous étudions l'émergence de fluctuations endogènes dans un modèle à générations imbriquées dans lequel les producteurs se livrent une concurrence à la Cournot avec libre entrée. L'économie est caractérisée par un taux de marge variable et des rendements croissants. Nous analysons l'influence de la variabilité du taux de marge et du niveau des rendements croissants sur l'indétermination locale de l'équilibre stationnaire et l'existence de cycles endo-gènes. Nous montrons que des fluctuations endogènes déterministes peuvent émerger si les rendements sont faiblement croissants et sont proches des rendements constants. En revanche, lorsque les rendements sont constants et le taux de marge disparaît, l'équilibre peut être indéterminé, mais des cycles déterministes ne peuvent pas apparaître. La concurrence imparfaite et la variabilité du taux de marge favorisent donc l'émergence de fluctuations endogènes.

Suggested Citation

  • Thomas Seegmuller, 2001. "Concurrence Imparfaite, Variabilité du Taux de Marge et Fluctuations Endogènes," Working Papers of BETA 2001-21, Bureau d'Economie Théorique et Appliquée, UDS, Strasbourg.
    • Handle: RePEc:ulp:sbbeta:2001-21
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    File URL: http://beta.u-strasbg.fr/WP/2001/2001-21.pdf
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    Cited by:

    1. Estelle Dhont-Peltrault & Etienne Pfister, 2007. "R&D cooperation versus R&D subcontracting: empirical evidence from French survey data," Working Papers of BETA 2007-17, Bureau d'Economie Théorique et Appliquée, UDS, Strasbourg.
    2. Nicolas Carayol & Pascale Roux, 2006. "A strategic model of complex networks formation," Working Papers of BETA 2006-02, Bureau d'Economie Théorique et Appliquée, UDS, Strasbourg.
    3. Rachel Levy & Paul Muller, 2006. "Do academic laboratories correspond to scientific communities? Evidence from a large European university," Working Papers of BETA 2006-15, Bureau d'Economie Théorique et Appliquée, UDS, Strasbourg.
    4. Sofia Pessoa e Costa & Stéphane Robin, 2007. "The Impact Of Training Programmes On Wages In France: An Evaluation Of The “Qualifying Contract” Using Propensity Scores," Working Papers of BETA 2007-18, Bureau d'Economie Théorique et Appliquée, UDS, Strasbourg.
    5. Giovanni Dosi & Patrick Llerena & Mauro Sylos Labin, 2005. "Science-Technology-Industry Links and the ”European Paradox”: Some Notes on the Dynamics of Scientific and Technological Research in Europe," Working Papers of BETA 2005-11, Bureau d'Economie Théorique et Appliquée, UDS, Strasbourg.
    6. Gisèle Umbhauer, 2007. "De l’amiante au chrysotile, un glissement stratégique dans la désinformation," Working Papers of BETA 2007-15, Bureau d'Economie Théorique et Appliquée, UDS, Strasbourg.
    7. Thomas Seegmuller, 2009. "Capital–Labour Substitution And Endogenous Fluctuations: A Monopolistic Competition Approach With Variable Markup," The Japanese Economic Review, Japanese Economic Association, vol. 60(3), pages 301-319, September.
    8. Ali Abcha, 2014. "Imperfect competition, government spending and estimated markup," EconomiX Working Papers 2014-11, University of Paris Nanterre, EconomiX.
    9. Jalal EL OUARDIGHI & Rabija SOMUN-KAPETANOVIC, 2006. "Convergence des contributions aux inégalités de richesse dans le développement des pays européens," Working Papers of BETA 2006-19, Bureau d'Economie Théorique et Appliquée, UDS, Strasbourg.
    10. Murat Yildizoglu & Nicolas Carayol & Pascale Roux, 2005. "Coordination Failures in Network Formation," Post-Print hal-00160385, HAL.
    11. Dos Santos Ferreira, Rodolphe & Lloyd-Braga, Teresa, 2005. "Non-linear endogenous fluctuations with free entry and variable markups," Journal of Economic Dynamics and Control, Elsevier, vol. 29(5), pages 847-871, May.
    12. Ali Abcha, 2014. "Imperfect competition, government spending and estimated markup," Working Papers hal-04141357, HAL.
    13. Stéphane Betrand & Kene Boun My & Alban Verchère, 2005. "Faire émerger la coopération internationale : une approche expérimentale comparée du bilatéralisme et du multilatéralisme," Working Papers of BETA 2005-13, Bureau d'Economie Théorique et Appliquée, UDS, Strasbourg.
    14. Tapas K. Mishra, 2006. "A Further Look into the Demography-based GDP Forecasting Method," Working Papers of BETA 2006-17, Bureau d'Economie Théorique et Appliquée, UDS, Strasbourg.
    15. Li Qin & Eleftherios Spyromitros & Moïse Sidiropoulos, 2007. "Monetary Policy with Uncertain Central Bank Preferences for Robustness," Working Papers of BETA 2007-23, Bureau d'Economie Théorique et Appliquée, UDS, Strasbourg.

    More about this item

    Keywords

    Fluctuations endogènes; concurrence imparfaite; variabilité du taux de marge Classification-JEL: D43; E32;
    All these keywords.

    JEL classification:

    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles

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