IDEAS home Printed from https://ideas.repec.org/p/hal/journl/hal-01385953.html
   My bibliography  Save this paper

Exploring Duopoly Markets with Conjectural Variations

Author

Listed:
  • Ludovic A. Julien

    (EconomiX - EconomiX - UPN - Université Paris Nanterre - CNRS - Centre National de la Recherche Scientifique)

  • Olivier Musy

    (EconomiX - EconomiX - UPN - Université Paris Nanterre - CNRS - Centre National de la Recherche Scientifique)

  • Aurélien Saidi

    (EconomiX - EconomiX - UPN - Université Paris Nanterre - CNRS - Centre National de la Recherche Scientifique)

Abstract

In this article, the authors investigate competitive firm behaviors in a two-firm environment assuming linear cost and demand functions. By introducing conjectural variations, they capture the different market structures as specific configurations of a more general model. Conjectural variations are based on the assumption that each firm believes its own strategy influences its rival's strategy. Firms derive their optimal choice from these exogenous conjectures, under the form of a conjectural best-response function. The authors' approach fully encompasses the standard measures of market power (the Lerner Index) and concentration (the Herfindahl Index), both depending on the conjectural variations. They finally represent, analytically and graphically, the equilibrium strategies and the associated indexes in a unified framework for any level of competition, ranging from perfect competition to collusion.

Suggested Citation

  • Ludovic A. Julien & Olivier Musy & Aurélien Saidi, 2014. "Exploring Duopoly Markets with Conjectural Variations," Post-Print hal-01385953, HAL.
    • Handle: RePEc:hal:journl:hal-01385953
    DOI: 10.1080/00220485.2014.946545
    Note: View the original document on HAL open archive server: https://hal.parisnanterre.fr/hal-01385953
    as

    Download full text from publisher

    File URL: https://hal.parisnanterre.fr/hal-01385953/document
    Download Restriction: no
    File URL: https://libkey.io/10.1080/00220485.2014.946545?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Other versions of this item:

    References listed on IDEAS

    as
    1. Martin Dufwenberg, 2001. "Teaching Cournot Without Derivatives," The Journal of Economic Education, Taylor & Francis Journals, vol. 32(1), pages 36-40, January.
    2. J. Levin & L. Einav, 2012. "Empirical Industrial Organization: A Progress Report," Voprosy Ekonomiki, NP Voprosy Ekonomiki, issue 1.
    3. Serrano,Roberto & Feldman,Allan M., 2013. "A Short Course in Intermediate Microeconomics with Calculus," Cambridge Books, Cambridge University Press, number 9781107623767.
    4. Jean Tirole, 1988. "The Theory of Industrial Organization," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262200716, April.
    5. Cabral, Luis M. B., 1995. "Conjectural variations as a reduced form," Economics Letters, Elsevier, vol. 49(4), pages 397-402, October.
    6. Dixit, Avinash K, 1986. "Comparative Statics for Oligopoly," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 27(1), pages 107-122, February.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Michael Higl, 2003. "Vertikale Kooperation im OligopolDie Gestaltung der Genossenschaftsorganisation als strategischer Zug," Discussion Paper Series 243, Universitaet Augsburg, Institute for Economics.
    2. Long, Ngo Van & Soubeyran, Antoine, 2001. "Cost Manipulation Games in Oligopoly, with Costs of Manipulating," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 42(2), pages 505-533, May.
    3. Andaluz, J. & Elsadany, A.A. & Jarne, G., 2017. "Nonlinear Cournot and Bertrand-type dynamic triopoly with differentiated products and heterogeneous expectations," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 132(C), pages 86-99.
    4. Rodriguez Castelan,Carlos & Araar,Abdelkrim & Malasquez Carbonel,Eduardo Alonso & Olivieri,Sergio Daniel & Vishwanath,Tara, 2019. "Distributional Effects of Competition : A Simulation Approach," Policy Research Working Paper Series 8838, The World Bank.
    5. Ziesemer, Thomas & Michaelis, Peter, 2011. "Strategic environmental policy and the accumulation of knowledge," Structural Change and Economic Dynamics, Elsevier, vol. 22(2), pages 180-191, June.
    6. Prof. Jean-Paul Chavas, 2010. "On Industry Structure and Firm Conduct in Long Run Equilibrium," Journal of Management and Strategy, Journal of Management and Strategy, Sciedu Press, vol. 1(1), pages 2-21, December.
    7. Robert A. Ritz, 2018. "Oligopolistic competition and welfare," Chapters, in: Luis C. Corchón & Marco A. Marini (ed.), Handbook of Game Theory and Industrial Organization, Volume I, chapter 7, pages 181-200, Edward Elgar Publishing.
    8. Ushchev, Philip & Zenou, Yves, 2018. "Price competition in product variety networks," Games and Economic Behavior, Elsevier, vol. 110(C), pages 226-247.
    9. Nils‐Henrik M. von der Fehr & Kristin Stevik, 1998. "Persuasive Advertising and Product Differentiation," Southern Economic Journal, John Wiley & Sons, vol. 65(1), pages 113-126, July.
    10. Joseph Clougherty & Anming Zhang, 2005. "Export orientation and domestic merger policy: theory and some empirical evidence," Canadian Journal of Economics, Canadian Economics Association, vol. 38(3), pages 778-806, August.
    11. S. Lael Brainard & David Martimort, 1996. "Strategic Trade Policy Design with Asymmetric Information and Public Contracts," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 63(1), pages 81-105.
    12. Aron, Debra J, 1993. "Diversification as a Strategic Preemptive Weapon," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 2(1), pages 41-70, Spring.
    13. repec:lic:licosd:43022 is not listed on IDEAS
    14. Joaquín Andaluz & Gloria Jarne, 2016. "Stability of vertically differentiated Cournot and Bertrand-type models when firms are boundedly rational," Annals of Operations Research, Springer, vol. 238(1), pages 1-25, March.
    15. Chavas, Jean-Paul, 2006. "On Storage Behavior Under Imperfect Competition," Working Papers 201527, University of Wisconsin-Madison, Department of Agricultural and Applied Economics, Food System Research Group.
    16. Brander, James A., 1995. "Strategic trade policy," Handbook of International Economics, in: G. M. Grossman & K. Rogoff (ed.), Handbook of International Economics, edition 1, volume 3, chapter 27, pages 1395-1455, Elsevier.
    17. Jean-Paul Chavas & Guanming Shi & Kyle Stiegert, 2020. "Pricing and Industry Structure when Demand Elasticity Changes," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 57(4), pages 891-907, December.
    18. Arora, Ashish & Fosfuri, Andrea, 2003. "Licensing the market for technology," Journal of Economic Behavior & Organization, Elsevier, vol. 52(2), pages 277-295, October.
    19. Robert F. Göx, 1998. "Pretiale Lenkung als Instrument der Wettbewerbsstrategie," Schmalenbach Journal of Business Research, Springer, vol. 50(3), pages 260-288, March.
    20. Reny, Philip J. & Wilkie, Simon J. & Williams, Michael A., 2012. "Tax incidence under imperfect competition: Comment," International Journal of Industrial Organization, Elsevier, vol. 30(5), pages 399-402.
    21. Rauscher, Michael, 2001. "International trade, foreign investment, and the environment," Thuenen-Series of Applied Economic Theory 29, University of Rostock, Institute of Economics.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:hal:journl:hal-01385953. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: CCSD (email available below). General contact details of provider: https://hal.archives-ouvertes.fr/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.