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Competition among the big and the small

Author

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  • SHIMOMURA, Ken-Ichi

    () (RIEB, Kobe University)

  • THISSE, Jacques-François

    () (Université catholique de Louvain, CORE, B-1348 Louvain-la-Neuve, Belgium)

Abstract

Many industries are made of a few big firms, which are able to manipulate the market outcome, and of a host of small businesses, each of which has a negligible impact on the market. We provide a general equilibrium framework that encapsulates both market structures. Due to the higher toughness of competition, the entry of big firms leads them to sell more through a market expansion effect generated by the shrinking of the monopolistically competitive fringe. Furthermore, social welfare increases with the number of big firms because the pro-competitive effect associated with entry dominates the resulting decrease in product diversity.

Suggested Citation

  • SHIMOMURA, Ken-Ichi & THISSE, Jacques-François, 2012. "Competition among the big and the small," CORE Discussion Papers 2012009, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  • Handle: RePEc:cor:louvco:2012009
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    References listed on IDEAS

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    Citations

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    Cited by:

    1. Kenji Fujiwara, 2018. "The Effects of Entry under the Coexistence of Oligopolistic and Monopolistic Competition," Discussion Paper Series 174, School of Economics, Kwansei Gakuin University, revised Feb 2018.
    2. Jörn Kleinert & Julien Martin & Farid Toubal, 2015. "The Few Leading the Many: Foreign Affiliates and Business Cycle Comovement," American Economic Journal: Macroeconomics, American Economic Association, vol. 7(4), pages 134-159, October.
    3. Jacques-Francois Thisse & Philip Ushchev, 2016. "Monopolistic Competition Without Apology," HSE Working papers WP BRP 141/EC/2016, National Research University Higher School of Economics.
    4. USHCHEV, Philip & SLOEV, Igor & THISSE, Jacques-François & ,, 2013. "Do we go shopping downtown or in the ‘burbs’? Why not both?," CORE Discussion Papers 2013057, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
    5. Mathieu Parenti, 2015. "David vs. Goliath," Working Papers ECARES ECARES 2015-53, ULB -- Universite Libre de Bruxelles.
    6. Simon P. Anderson, Nisvan Erkal and, 2009. "Aggregative Oligopoly Games with Entry," Department of Economics - Working Papers Series 1175, The University of Melbourne, revised 2013.
    7. PARENTI, Mathieu & ,, 2013. "Large and small firms in a global market: David vs. Goliath," CORE Discussion Papers 2013058, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
    8. repec:cje:issued:v:50:y:2017:i:5:p:1414-1444 is not listed on IDEAS
    9. Sergey Kokovin & Mathieu Parenti & Jacques-Francois Thisse & Philip Ushchev, 2017. "On the Dilution of Market Power," HSE Working papers WP BRP 176/EC/2017, National Research University Higher School of Economics.
    10. Toshihiro Matsumura & Yasunori Okumura, 2014. "Comparison between specific taxation and volume quotas in a free entry Cournot oligopoly," Journal of Economics, Springer, vol. 113(2), pages 125-132, October.
    11. Kenji Fujiwara, 2018. "Trade, Productivity and Welfare when Monopolistic Competition and Oligopoly Coexist," Discussion Paper Series 170, School of Economics, Kwansei Gakuin University, revised Jan 2018.
    12. Italo Colantone & Kristien Coucke & Leo Sleuwaegen, 2015. "Low-cost import competition and firm exit: evidence from the EU," Industrial and Corporate Change, Oxford University Press, vol. 24(1), pages 131-161.
    13. Keith Head & Barbara J. Spencer, 2017. "Oligopoly in international trade: Rise, fall and resurgence," Canadian Journal of Economics, Canadian Economics Association, vol. 50(5), pages 1414-1444, December.
    14. Ushchev Ph. & Sloev I. & Thisse J.-F., 2014. "Competition between Small Shops and a Large Shopping Center," Journal of the New Economic Association, New Economic Association, vol. 23(3), pages 12-37.
    15. Ushchev, Philip & Sloev, Igor & Thisse, Jacques-François, 2015. "Do we go shopping downtown or in the ‘burbs?," Journal of Urban Economics, Elsevier, vol. 85(C), pages 1-15.
    16. repec:eee:inecon:v:110:y:2018:i:c:p:103-118 is not listed on IDEAS
    17. R. Cellini & L. Lambertini & G. I. P. Ottaviano, 2015. "To Know or Not To Know: Strategic Inattention and Endogenous Market Structure," Working Papers wp987, Dipartimento Scienze Economiche, Universita' di Bologna.

    More about this item

    Keywords

    oligopoly; monopolistic competition; product differentiation; welfare;

    JEL classification:

    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L40 - Industrial Organization - - Antitrust Issues and Policies - - - General

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