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Acquisitions versus Entry: The Evolution of Concentration

Author

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  • Zava Aydemir
  • Armin Schmutzler

    (Socioeconomic Institute, University of Zurich)

Abstract

We consider market dynamics in a reduced form model. In the simplest version, there are two investors and several small noninvesting firms. In each period, one investor can acquire a small firm, the other investor decides about market entry. After that all firms play an oligopoly game. We derive conditions under which increasing market concentration arises with myopic firms, we show that a model with forward-looking firms and with arbitrary numbers of investors yield similar results. We apply the framework to a Cournot model with cost synergies and a Bertrand model where acquisitions extend the product spectrum of a firm.

Suggested Citation

  • Zava Aydemir & Armin Schmutzler, 2002. "Acquisitions versus Entry: The Evolution of Concentration," SOI - Working Papers 0208, Socioeconomic Institute - University of Zurich, revised Aug 2002.
    • Handle: RePEc:soz:wpaper:0208
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    File URL: https://www.econ.uzh.ch/apps/workingpapers/wp/wp0208.pdf
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    References listed on IDEAS

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    Cited by:

    1. Volker Grossmann, 2003. "Firm Size and Diversification: Asymmetric Multiproduct Firms under Cournot Competition," CESifo Working Paper Series 1047, CESifo.

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    More about this item

    Keywords

    acquisitions; entry; concentration; synergies; product variety.;
    All these keywords.

    JEL classification:

    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms
    • L12 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Monopoly; Monopolization Strategies
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets

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