IDEAS home Printed from https://ideas.repec.org/h/elg/eechap/16873_11.html

Entry games and free entry equilibria

In: Handbook of Game Theory and Industrial Organization, Volume I

Author

Listed:
  • Michele Polo

Abstract

This chapter reviews the theoretical literature on entry games and free entry equilibria. We show that a wide range of symmetric oligopoly models share common comparative statics properties. Individual profits and quantities decrease in the number of firms, and tend to competitive or monopolistic competitive equilibria when the number of firms increases indefinitely. The maximum number of firms sustainable in a symmetric long-run equilibrium depends on technology (economies of scale), preferences (market size) and strategies (toughness of price competition). On the normative side, in homogeneous product markets the business-stealing effect drives the result of excessive entry, whereas adding product differentiation and the utility from variety may revert the result. We then consider asymmetric free entry equilibria that exploit the aggregative nature of many oligopoly models. Finally, we discuss endogenous sunk costs and persistent concentration and frictionless entry and contestable markets.

Suggested Citation

  • Michele Polo, 2018. "Entry games and free entry equilibria," Chapters, in: Luis C. Corchón & Marco A. Marini (ed.), Handbook of Game Theory and Industrial Organization, Volume I, chapter 11, pages 312-342, Edward Elgar Publishing.
    • Handle: RePEc:elg:eechap:16873_11
    as

    Download full text from publisher

    File URL: https://www.elgaronline.com/view/9781785363276.00018.xml
    Download Restriction: no
    ---><---

    Other versions of this item:

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Alfaro, Martin & Lander, David, 2021. "Restricting entry without aggressive pricing," Research in Economics, Elsevier, vol. 75(4), pages 305-319.
    2. Roy, Sunanda & Singh, Rajesh & Weninger, Quinn, 2024. "Entry under placement uncertainty," Games and Economic Behavior, Elsevier, vol. 145(C), pages 157-196.

    More about this item

    Keywords

    ;

    JEL classification:

    • L1 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection

    Statistics

    Access and download statistics

    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:elg:eechap:16873_11. 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.

    We have no bibliographic references for this item. You can help adding them by using 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: Darrel McCalla (email available below). General contact details of provider: http://www.e-elgar.com .

    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.