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On the anti-competitive effects of quantity discounts

  • Calzolari, Giacomo
  • Denicolò, Vincenzo

We analyze the competitive effects of quantity discounts in an asymmetric duopoly. We find that for a sizeable set of parameter values, quantity discounts harm the smaller firm and reduce consumers' surplus. They can even decrease social welfare, i.e. the sum of producers' and consumers' surpluses. However, the circumstances in which quantity discounts may decrease social welfare are limited and difficult to identify in practice.

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Article provided by Elsevier in its journal International Journal of Industrial Organization.

Volume (Year): 29 (2011)
Issue (Month): 3 (May)
Pages: 337-341

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Handle: RePEc:eee:indorg:v:29:y:2011:i:3:p:337-341
Contact details of provider: Web page: http://www.elsevier.com/locate/inca/505551

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  1. Sreya Kolay & Greg Shaffer & Janusz A. Ordover, 2004. "All-Units Discounts in Retail Contracts," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 13(3), pages 429-459, 09.
  2. David Martimort & Lars Stole, 2009. "Market participation in delegated and intrinsic common-agency games," RAND Journal of Economics, RAND Corporation, vol. 40(1), pages 78-102.
  3. Dennis W. Carlton & Michael Waldman, 2008. "Safe Harbors for Quantity Discounts and Bundling," EAG Discussions Papers 200801, Department of Justice, Antitrust Division.
  4. Adrian Majumdar & Greg Shaffer, 2009. "Market-Share Contracts with Asymmetric Information," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 18(2), pages 393-421, 06.
  5. Calzolari, Giacomo & Denicolò, Vincenzo, 2009. "Competition with exclusive contracts and market-share discounts," CEPR Discussion Papers 7613, C.E.P.R. Discussion Papers.
  6. B. Douglas Bernheim & Michael D. Whinston, 1996. "Exclusive Dealing," NBER Working Papers 5666, National Bureau of Economic Research, Inc.
  7. Mark Armstrong & John Vickers, 2010. "Competitive Non-linear Pricing and Bundling," Review of Economic Studies, Oxford University Press, vol. 77(1), pages 30-60.
  8. Dennis W. Carlton & Patrick Greenlee & Michael Waldman, 2008. "Assessing the Anticompetitive Effects of Multiproduct Pricing," NBER Working Papers 14199, National Bureau of Economic Research, Inc.
  9. David Mills, 2010. "Inducing Downstream Selling Effort with Market Share Discounts," International Journal of the Economics of Business, Taylor & Francis Journals, vol. 17(2), pages 129-146.
  10. Greenlee, Patrick & Reitman, David & Sibley, David S., 2008. "An antitrust analysis of bundled loyalty discounts," International Journal of Industrial Organization, Elsevier, vol. 26(5), pages 1132-1152, September.
  11. Calzolari, Giacomo & Denicolò, Vincenzo, 2010. "Competitive quantity discounts," CEPR Discussion Papers 8144, C.E.P.R. Discussion Papers.
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