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Bargaining and Networks in a Gas Bilateral Oligopoly

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  • Matteo M. Galizzi

Abstract

In the context of international gas markets, we investigate the interaction between price formation and communication networks in a bilateral duopoly with heterogeneous buyers. Given a particular buyers-sellers network graph, prices are formed as the outcome of dynamic decentralized negotiations among traders. We characterize, for any network structure, the full set of sub-game perfect Nash equilibria in pure and stationary strategies (PSSPNE) of the non-cooperative bargaining game with random order of proposals and simultaneous responses. Depending on the inter-temporal discount factor and the dispersion of reservation values across buyers, negotiations may lead, even in a completely connected buyers-sellers network, to multiple equilibria, co-existence of different prices, delays in trade and inefficient allocations. The endogenous bargaining power of each trader as a function of her position in the communication network is derived by comparing traders' payoffs across networks.

Suggested Citation

  • Matteo M. Galizzi, 2009. "Bargaining and Networks in a Gas Bilateral Oligopoly," Working Papers 0906, University of Brescia, Department of Economics.
  • Handle: RePEc:ubs:wpaper:0906
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    References listed on IDEAS

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    1. Charness, Gary & Corominas-Bosch, Margarida & Frechette, Guillaume R., 2007. "Bargaining and network structure: An experiment," Journal of Economic Theory, Elsevier, vol. 136(1), pages 28-65, September.
    2. Kalyan Chatterjee & Bhaskar Dutta, 2013. "Rubinstein Auctions: On Competition for Bargaining Partners," World Scientific Book Chapters,in: Bargaining in the Shadow of the Market Selected Papers on Bilateral and Multilateral Bargaining, chapter 3, pages 51-77 World Scientific Publishing Co. Pte. Ltd..
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    4. Bloch, Francis & Gomes, Armando, 2006. "Contracting with externalities and outside options," Journal of Economic Theory, Elsevier, vol. 127(1), pages 172-201, March.
    5. Matteo Maria GALIZZI, 2006. "Gas thin markets:insights from bargaining and networks models," Departmental Working Papers 2006-12, Department of Economics, Management and Quantitative Methods at Università degli Studi di Milano.
    6. Muthoo,Abhinay, 1999. "Bargaining Theory with Applications," Cambridge Books, Cambridge University Press, number 9780521576475, October.
    7. Gianni De Fraja & Jozsef Sakovics, 2001. "Walras Retrouve: Decentralized Trading Mechanisms and the Competitive Price," Journal of Political Economy, University of Chicago Press, vol. 109(4), pages 842-863, August.
    8. Calvo-Armengol, Antoni, 2003. "A decentralized market with trading links," Mathematical Social Sciences, Elsevier, vol. 45(1), pages 83-103, February.
    9. Corominas-Bosch, Margarida, 2004. "Bargaining in a network of buyers and sellers," Journal of Economic Theory, Elsevier, vol. 115(1), pages 35-77, March.
    10. Rachel E. Kranton & Deborah F. Minehart, 2001. "A Theory of Buyer-Seller Networks," American Economic Review, American Economic Association, vol. 91(3), pages 485-508, June.
    11. Antoni Calvó-Armengol, 2002. "On bargaining partner selection when communication is restricted," International Journal of Game Theory, Springer;Game Theory Society, vol. 30(4), pages 503-515.
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    Cited by:

    1. Alessandro Fedele & Paolo M. Panteghini & Sergio Vergalli, 2011. "Optimal Investment and Financial Strategies under Tax‐Rate Uncertainty," German Economic Review, Verein für Socialpolitik, vol. 12(4), pages 438-468, November.
    2. Del Boca, Alessandra & Fratianni, Michele & Spinelli, Franco & Trecroci, Carmine, 2010. "The Phillips curve and the Italian lira, 1861-1998," The North American Journal of Economics and Finance, Elsevier, vol. 21(2), pages 182-197, August.
    3. Alessandro Fedele & Raffaele Miniaci, 2010. "Do Social Enterprises Finance Their Investments Differently from For-profit Firms? The Case of Social Residential Services in Italy," Journal of Social Entrepreneurship, Taylor & Francis Journals, vol. 1(2), pages 174-189, October.
    4. Alessandro Fedele & Francesco Liucci & Andrea Mantovani, 2009. "Credit availability in the crisis: the European investment bank group," Working Papers 0913, University of Brescia, Department of Economics.
    5. Martin Meier & Enrico Minelli & Herakles Polemarchakis, 2014. "Competitive markets with private information on both sides," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 55(2), pages 257-280, February.
    6. Monica Billio & Roberto Casarin, 2010. "Bayesian Estimation of Stochastic-Transition Markov-Switching Models for Business Cycle Analysis," Working Papers 1002, University of Brescia, Department of Economics.
    7. Francesco Menoncin & Paolo Panteghini, 2009. "Retrospective Capital Gains taxation in the real world," Working Papers 0910, University of Brescia, Department of Economics.
    8. Rosella Levaggi & Francesco Menoncin, 2009. "Decentralized provision of merit and impure public goods," Working Papers 0909, University of Brescia, Department of Economics.
    9. Bisin, A. & Geanakoplos, J.D. & Gottardi, P. & Minelli, E. & Polemarchakis, H., 2011. "Markets and contracts," Journal of Mathematical Economics, Elsevier, vol. 47(3), pages 279-288.

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