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Trading in Networks: Theory and Experiments

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  • Syngjoo Choi
  • Andrea Galeotti
  • Sanjeev Goyal

Abstract

We propose a model of posted prices in networks. The model maps traditional concepts of market power, competition and double marginalization into networks, allowing for the study of pricing in complex structures of intermediation such as supply chains, transportation and communication networks and financial brokerage. We provide a complete characterization of equilibrium prices. Our experiments complement our theoretical work and point to node criticality as an organizing principle for understanding pricing, efficiency and the division of surplus in networked markets.

Suggested Citation

  • Syngjoo Choi & Andrea Galeotti & Sanjeev Goyal, 2014. "Trading in Networks: Theory and Experiments," Cambridge Working Papers in Economics 1457, Faculty of Economics, University of Cambridge.
    • Handle: RePEc:cam:camdae:1457
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    More about this item

    Keywords

    Intermediation; competition; market power; double marginalization.;
    All these keywords.

    JEL classification:

    • C70 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - General
    • C71 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Cooperative Games
    • C91 - Mathematical and Quantitative Methods - - Design of Experiments - - - Laboratory, Individual Behavior
    • C92 - Mathematical and Quantitative Methods - - Design of Experiments - - - Laboratory, Group Behavior
    • D40 - Microeconomics - - Market Structure, Pricing, and Design - - - General

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