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Trade through endogenous intermediaries

Listed author(s):
  • Kilenthong, WT
  • Qin, CZ

We propose an intermediation core for an economy that explicitly specifies how traders organize themselves into trade cooperatives (intermediaries) and how trade between them gets carried out. The intermediation core allocations are closely related to the equilibrium allocations of a non-cooperative intermediation game in Townsend (1983). We show that the intermediation core contains all subgame perfect equilibrium allocations of the intermediation game, similar to the inclusion of competitive equilibrium allocations in the core usually studied. We identify intermediation core allocations that are also subgame perfect equilibrium allocations of the intermediation game in terms of the supporting intermediary structures. These results help to characterize subgame perfect equilibrium allocations of the intermediation game and to analyze their welfare and stability properties. © 2013 Elsevier B.V.

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Paper provided by Department of Economics, UC Santa Barbara in its series University of California at Santa Barbara, Recent Works in Economics with number qt8qg8869g.

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Date of creation: 01 Jan 2014
Handle: RePEc:cdl:ucsbrw:qt8qg8869g
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  1. Mas-Colell, Andreu, 1975. "A model of equilibrium with differentiated commodities," Journal of Mathematical Economics, Elsevier, vol. 2(2), pages 263-295.
  2. Moore, John & Repullo, Rafael, 1988. "Subgame Perfect Implementation," Econometrica, Econometric Society, vol. 56(5), pages 1191-1220, September.
  3. Townsend, Robert M., 1983. "Theories of intermediated structures," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 18(1), pages 221-272, January.
  4. Starr,Ross M., 2011. "General Equilibrium Theory," Cambridge Books, Cambridge University Press, number 9780521826457, December.
  5. Qin, Cheng-Zhong & Shapley, Lloyd S. & Shimomura, Ken-Ichi, 2006. "The Walras core of an economy and its limit theorem," Journal of Mathematical Economics, Elsevier, vol. 42(2), pages 180-197, April.
  6. Baumol, William J, 1982. "Contestable Markets: An Uprising in the Theory of Industry Structure," American Economic Review, American Economic Association, vol. 72(1), pages 1-15, March.
  7. John H. Boyd & Edward C. Prescott & Bruce D. Smith, 1988. "Organizations in Economic Analysis," Canadian Journal of Economics, Canadian Economics Association, vol. 21(3), pages 477-491, August.
  8. Roberto Serrano & Rajiv Vohra, 1997. "Non-cooperative implementation of the core," Social Choice and Welfare, Springer;The Society for Social Choice and Welfare, vol. 14(4), pages 513-525.
  9. Starr,Ross M., 2011. "General Equilibrium Theory," Cambridge Books, Cambridge University Press, number 9780521533867, December.
  10. Boyd, John H. & Prescott, Edward C., 1986. "Financial intermediary-coalitions," Journal of Economic Theory, Elsevier, vol. 38(2), pages 211-232, April.
  11. Robert M. Townsend, 1978. "Intermediation with Costly Bilateral Exchange," Review of Economic Studies, Oxford University Press, vol. 45(3), pages 417-425.
  12. Abreu, Dilip & Sen, Arunava, 1990. "Subgame perfect implementation: A necessary and almost sufficient condition," Journal of Economic Theory, Elsevier, vol. 50(2), pages 285-299, April.
  13. Nicholas Yannelis, 2009. "Debreu’s social equilibrium theorem with asymmetric information and a continuum of agents," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 38(2), pages 419-432, February.
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