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Market Share Exclusion

  • Mikko Packalen

    (Department of Economics, University of Waterloo)

A market share exclusion contract between a seller and a buyer prevents rival sellers from competing for a share of the buyer's purchases. For non-discriminatory contracting we show that, unlike exclusion through exclusive dealing, market share exclusion can be profitable even when buyers coordinate on the best equilibrium in the contract-acceptance subgame. The condition for the profitability of market share exclusion is characterized in terms of straightforward economic concepts. With discriminatory contracting market share exclusion contracts are generally less profitable than exclusive dealing contracts. The motive for employing market share exclusion contracts, which welfare impacts have not been well understood, instead of exclusive dealing contracts, which have been the focus of both theory and policy, may thus often be the avoidance of scrutiny by competition authorities rather than some more direct economic advantage of market share exclusion over exclusive dealing. However, we also show that market share exclusion decreases both buyer and total surplus. Hence, competition authorities should not view exclusion through exclusive dealing as a pre-requisite for the possibility of anti-competitive effects from exclusionary contracting.

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File URL: http://www.economics.uwaterloo.ca/documents/11-003MP.pdf
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Paper provided by University of Waterloo, Department of Economics in its series Working Papers with number 1103.

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Length: 39 pages
Date of creation: Aug 2011
Date of revision: Aug 2011
Handle: RePEc:wat:wpaper:1103
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  2. Daron Acemoglu & Joshua Linn, 2003. "Market Size in Innovation: Theory and Evidence From the Pharmaceutical Industry," NBER Working Papers 10038, National Bureau of Economic Research, Inc.
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  5. Michael D. Whinston & Ilya R. Segal, 2000. "Naked Exclusion: Comment," American Economic Review, American Economic Association, vol. 90(1), pages 296-309, March.
  6. Marvel, Howard P, 1982. "Exclusive Dealing," Journal of Law and Economics, University of Chicago Press, vol. 25(1), pages 1-25, April.
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  10. Chiara Fumagalli & Massimo Motta, 2006. "Exclusive Dealing and Entry, when Buyers Compete," American Economic Review, American Economic Association, vol. 96(3), pages 785-795, June.
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  19. Mike Burkart & Denis Gromb & Fausto Panunzi, 1998. "Why Higher Takeover Premia Protect Minority Shareholders," Journal of Political Economy, University of Chicago Press, vol. 106(1), pages 172-204, February.
  20. David Spector, 2007. "Exclusive contracts and demand foreclosure," PSE Working Papers halshs-00588311, HAL.
  21. Richard Gilbert, 2000. "Exclusive Dealing, Preferential Dealing, and Dynamic Efficiency," Review of Industrial Organization, Springer, vol. 16(2), pages 167-184, March.
  22. Schwartz, Marius, 1987. "The Competitive Effects of Vertical Agreements: Comment," American Economic Review, American Economic Association, vol. 77(5), pages 1063-68, December.
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  24. Rasmusen, Eric B & Ramseyer, J Mark & Wiley, John S, Jr, 1991. "Naked Exclusion," American Economic Review, American Economic Association, vol. 81(5), pages 1137-45, December.
  25. Julian Wright, 2009. "Exclusive Dealing and Entry, When Buyers Compete: Comment," American Economic Review, American Economic Association, vol. 99(3), pages 1070-81, June.
  26. Kitamura, Hiroshi, 2010. "Exclusionary vertical contracts with multiple entrants," International Journal of Industrial Organization, Elsevier, vol. 28(3), pages 213-219, May.
  27. Stefanadis, Christodoulos, 1998. "Selective Contracts, Foreclosure, and the Chicago School View," Journal of Law and Economics, University of Chicago Press, vol. 41(2), pages 429-50, October.
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