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Market Share Exclusion

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  • Mikko Packalen

    (Department of Economics, University of Waterloo)

Abstract

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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Bibliographic Info

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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  1. Kaplow, Louis & Shapiro, Carl, 2007. "Antitrust," Competition Policy Center, Working Paper Series qt9pt7p9bm, Competition Policy Center, Institute for Business and Economic Research, UC Berkeley.
  2. B. Douglas Bernheim & Michael D. Whinston, 1998. "Exclusive Dealing," Journal of Political Economy, University of Chicago Press, vol. 106(1), pages 64-103, February.
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  8. Stefanadis, Christodoulos, 1997. "Downstream Vertical Foreclosure and Upstream Innovation," Journal of Industrial Economics, Wiley Blackwell, vol. 45(4), pages 445-56, December.
  9. Daron Acemoglu & Joshua Linn, 2004. "Market Size in Innovation: Theory and Evidence from the Pharmaceutical Industry," The Quarterly Journal of Economics, MIT Press, vol. 119(3), pages 1049-1090, August.
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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. Ilya Segal & Michael D. Whinston, 2000. "Exclusive Contracts and Protection of Investments," RAND Journal of Economics, The RAND Corporation, vol. 31(4), pages 603-633, Winter.
  26. Daniel P. O'Brien & Greg Shaffer, 1997. "Nonlinear Supply Contracts, Exclusive Dealing, and Equilibrium Market Foreclosure," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 6(4), pages 755-785, December.
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Cited by:
  1. Greer, Katja, 2013. "Limiting rival's efficiency via conditional discounts," Annual Conference 2013 (Duesseldorf): Competition Policy and Regulation in a Global Economic Order 79730, Verein für Socialpolitik / German Economic Association.

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