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Do Buyer-Size Discounts Depend on the Curvature of the Surplus Function? Experimental Tests of Bargaining Models

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  • Hans-Theo Normann

    (Royal Holloway, University of London)

  • Bradley J. Ruffle

    (Ben-Gurion University)

  • Christopher M. Sndyer

    (George Washington University)

Abstract

A number of recent theoretical papers have shown that for buyer-size discounts to emerge in a bargaining model, the total surplus function over which parties bargain must have certain nonlinearities. We test the theory in an experimental setting in which a seller bargains with a number of buyers of different sizes. We generate nonlinearities in the surplus function by varying the shape of the seller's cost function. Our results strongly support the theory. As predicted, large-buyer discounts emerge only in the case of increasing marginal cost, corresponding to a concave surplus function.

Suggested Citation

  • Hans-Theo Normann & Bradley J. Ruffle & Christopher M. Sndyer, 2003. "Do Buyer-Size Discounts Depend on the Curvature of the Surplus Function? Experimental Tests of Bargaining Models," Experimental 0308001, University Library of Munich, Germany.
    • Handle: RePEc:wpa:wuwpex:0308001
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    Cited by:

    1. Hinloopen, Jeroen & Müller, Wieland & Normann, Hans-Theo, 2014. "Output commitment through product bundling: Experimental evidence," European Economic Review, Elsevier, vol. 65(C), pages 164-180.
    2. Jeon, Doh-Shin & Menicucci, Domenico, 2014. "Buyer Group and Buyer Power When Sellers Compete," TSE Working Papers 14-543, Toulouse School of Economics (TSE), revised Nov 2017.
    3. Lisa Bruttel, 2013. "Is there an Exclusionary Effect of Retroactive Price Reduction Schemes?," Working Paper Series of the Department of Economics, University of Konstanz 2013-21, Department of Economics, University of Konstanz.
    4. Mayumi Ojima & Junnosuke Shino & Kozo Ueda, 2018. "Retailer Market Concentration, Buyer-Size Discounts and Inflation Dynamics," The Japanese Economic Review, Springer, vol. 69(1), pages 101-127, March.
    5. Mayumi Ojima & Junnosuke Shino & Kozo Ueda, 2014. "Buyer-Size Discounts and Inflation Dynamics," UTokyo Price Project Working Paper Series 017, University of Tokyo, Graduate School of Economics.
    6. Goldberg, Linda & Tille, Cédric, 2013. "A bargaining theory of trade invoicing and pricing," Kiel Working Papers 1839, Kiel Institute for the World Economy (IfW Kiel).
    7. Sara Fisher Ellison & Christopher M. Snyder, 2010. "Countervailing Power In Wholesale Pharmaceuticals," Journal of Industrial Economics, Wiley Blackwell, vol. 58(1), pages 32-53, March.
    8. Lisa Bruttel, 2019. "Is There a Loyalty-Enhancing Effect of Retroactive Price-Reduction Schemes?," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 54(3), pages 575-593, May.
    9. Davis, Douglas D. & Wilson, Bart J., 2008. "Strategic buyers, horizontal mergers and synergies: An experimental investigation," International Journal of Industrial Organization, Elsevier, vol. 26(3), pages 643-661, May.
    10. Sebastian J. Goerg & Sebastian Kube & Ro'i Zultan, 2010. "Treating Equals Unequally: Incentives in Teams, Workers' Motivation, and Production Technology," Journal of Labor Economics, University of Chicago Press, vol. 28(4), pages 747-772, October.
    11. Normann, Hans-Theo, 2010. "Experimentelle Ökonomik für die Wettbewerbspolitik," DICE Ordnungspolitische Perspektiven 06, Heinrich Heine University Düsseldorf, Düsseldorf Institute for Competition Economics (DICE).
    12. repec:wsr:ecbook:2011:i:iii-003 is not listed on IDEAS
    13. Normann, Hans-Theo & Rösch, Jürgen & Schultz, Luis Manuel, 2012. "Do buyer groups facilitate collusion?," DICE Discussion Papers 74, Heinrich Heine University Düsseldorf, Düsseldorf Institute for Competition Economics (DICE).
    14. Jim Engle-Warnick & Bradley Ruffle, 2006. "Buyer Concentration As A Source Of Countervailing Power: Evidence From Experimental Posted-Offer Markets," Departmental Working Papers 2006-12, McGill University, Department of Economics.
    15. Jeon, Doh-Shin & Menicucci, Domenico, 2019. "On the unprofitability of buyer groups when sellers compete," Games and Economic Behavior, Elsevier, vol. 115(C), pages 265-288.
    16. Normann, Hans-Theo & Rösch, Jürgen & Schultz, Luis Manuel, 2015. "Do buyer groups facilitate collusion?," Journal of Economic Behavior & Organization, Elsevier, vol. 109(C), pages 72-84.
    17. Takayuki Mizuno & Wataru Souma & Tsutomu Watanabe, 2014. "The Structure and Evolution of Buyer-Supplier Networks," UTokyo Price Project Working Paper Series 018, University of Tokyo, Graduate School of Economics.
    18. Dana, James D., 2012. "Buyer groups as strategic commitments," Games and Economic Behavior, Elsevier, vol. 74(2), pages 470-485.
    19. Normann, Hans-Theo & Rösch, Jürgen & Schultz, Luis Manuel, 2014. "Do buyer groups facilitate collusion?," DICE Discussion Papers 74 [rev.], Heinrich Heine University Düsseldorf, Düsseldorf Institute for Competition Economics (DICE).
    20. Bradley J. Ruffle, 2013. "When Do Large Buyers Pay Less? Experimental Evidence," Journal of Industrial Economics, Wiley Blackwell, vol. 61(1), pages 108-137, March.
    21. Mikhael Shor, 2008. "An experiment on strategic capacity reduction," Working papers 2012-22, University of Connecticut, Department of Economics.
    22. Qiu Zhao, 2019. "The Influence of Buyer Power on Supply Chain Pricing with Downstream Competition," Sustainability, MDPI, vol. 11(10), pages 1-19, May.
    23. Hinloopen, Jeroen & Müller, Wieland & Normann, Hans-Theo, 2014. "Output commitment through product bundling: Experimental evidence," European Economic Review, Elsevier, vol. 65(C), pages 164-180.

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    More about this item

    Keywords

    buyer-size discounts; large buyer; experimental economics.;
    All these keywords.

    JEL classification:

    • C78 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Bargaining Theory; Matching Theory
    • C90 - Mathematical and Quantitative Methods - - Design of Experiments - - - General

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