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What Determines Market Structure? An Explanation from Cooperative Investment with Non‐Exclusive Co

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  • Roig, Guillem

Abstract

In a common agency setting, where the common buyer undertakes cooperative investment with her suppliers, we obtain a direct link between the level of ex-post competition and investment which affects the market structure of the supply side of the market. We show that more competitive equilibria are associated with a larger and more homogeneous distribution of investment among active suppliers, and an equilibrium with no investment might occur when competition is mild. In our model, buyer's investment works as a mechanism to incentivize competition, and its effectiveness is positively related to the level of competition ex-post. In general, the equilibrium investment profile is lower than efficiency, and we surprisingly find that higher competitive markets may sustain a larger number of suppliers.

Suggested Citation

  • Roig, Guillem, 2014. "What Determines Market Structure? An Explanation from Cooperative Investment with Non‐Exclusive Co," TSE Working Papers 14-482, Toulouse School of Economics (TSE).
    • Handle: RePEc:tse:wpaper:28043
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    References listed on IDEAS

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    1. Yeon-Koo Che & Tai-Yeong Chung, 1999. "Contract Damages and Cooperative Investments," RAND Journal of Economics, The RAND Corporation, vol. 30(1), pages 84-105, Spring.
    2. Roig, Guillem, 2014. "Competition and the Hold‐U p Problem: a Setting with Non‐exclusive Contracts," TSE Working Papers 14-481, Toulouse School of Economics (TSE).
    3. Matsushima, Noriaki & Shinohara, Ryusuke, 2014. "What factors determine the number of trading partners?," Journal of Economic Behavior & Organization, Elsevier, vol. 106(C), pages 428-441.
    4. Chiesa, Gabriella & Denicolò, Vincenzo, 2009. "Trading with a common agent under complete information: A characterization of Nash equilibria," Journal of Economic Theory, Elsevier, vol. 144(1), pages 296-311, January.
    5. Hori Kazumi, 2006. "Inefficiency in a Bilateral Trading Problem with Cooperative Investment," The B.E. Journal of Theoretical Economics, De Gruyter, vol. 6(1), pages 1-9, July.
    6. Tommaso Valletti, 2000. "Switching Costs in Vertically Related Markets," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 17(4), pages 395-409, December.
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    1. Roig, Guillem, 2014. "Competition and the Hold‐U p Problem: a Setting with Non‐exclusive Contracts," TSE Working Papers 14-481, Toulouse School of Economics (TSE).

    More about this item

    Keywords

    cooperative investment; investment distribution; competition;

    JEL classification:

    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • D44 - Microeconomics - - Market Structure, Pricing, and Design - - - Auctions

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