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Single sourcing versus multiple sourcing

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  • Roman Inderst

Abstract

We show that in contrast to results in the extant literature, single sourcing may not be the optimal strategy of a buyer facing suppliers with strictly convex costs. As we argue, previous findings relied crucially on the joint assumption that, first, there is only a single buyer and that, second, procurement takes place in an auction organized by the buyer. Relaxing these restrictions, we obtain a richer set of results. In particular, we show that even in the original setting, where suppliers bid, committing to single sourcing is only optimal if the respective buyer controls a sufficiently large fraction of the whole procurement market. Copyright (c)2008, RAND.

Suggested Citation

  • Roman Inderst, 2008. "Single sourcing versus multiple sourcing," RAND Journal of Economics, RAND Corporation, vol. 39(1), pages 199-213.
  • Handle: RePEc:bla:randje:v:39:y:2008:i:1:p:199-213
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    References listed on IDEAS

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    1. Robert Wilson, 1979. "Auctions of Shares," The Quarterly Journal of Economics, Oxford University Press, vol. 93(4), pages 675-689.
    2. Jean-Jacques Laffont & Jean Tirole, 1988. "Repeated Auctions of Incentive Contracts, Investment, and Bidding Parity with an Application to Takeovers," RAND Journal of Economics, The RAND Corporation, vol. 19(4), pages 516-537, Winter.
    3. B. Douglas Bernheim & Michael D. Whinston, 1986. "Menu Auctions, Resource Allocation, and Economic Influence," The Quarterly Journal of Economics, Oxford University Press, vol. 101(1), pages 1-31.
    4. James J. Anton & Dennis A. Yao, 1987. "Second Sourcing and the Experience Curve: Price Competition in Defense Procurement," RAND Journal of Economics, The RAND Corporation, vol. 18(1), pages 57-76, Spring.
    5. James J. Anton & Dennis A. Yao, 1989. "Split Awards, Procurement, and Innovation," RAND Journal of Economics, The RAND Corporation, vol. 20(4), pages 538-552, Winter.
    6. Wedad J. Elmaghraby, 2000. "Supply Contract Competition and Sourcing Policies," Manufacturing & Service Operations Management, INFORMS, vol. 2(4), pages 350-371, April.
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    Cited by:

    1. Gong, Jiong & Li, Jianpei & McAfee, R. Preston, 2012. "Split-award contracts with investment," Journal of Public Economics, Elsevier, vol. 96(1), pages 188-197.
    2. Jose Alcalde & Matthias Dahm, 2016. "Proportional payoffs in legislative bargaining with weighted voting: a characterization," Discussion Papers 2016-03, The Centre for Decision Research and Experimental Economics, School of Economics, University of Nottingham.
    3. Chris Doyle & Martijn Han, 2014. "Cartelization Through Buyer Groups," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 44(3), pages 255-275, May.
    4. James J. Anton & Gary Biglaiser & Nikolaos Vettas, 2014. "Dynamic Price Competition With Capacity Constraints And A Strategic Buyer," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 55, pages 943-958, August.
    5. Alcalde, José & Dahm, Matthias, 2013. "Competition for procurement shares," Games and Economic Behavior, Elsevier, vol. 80(C), pages 193-208.
    6. Anton, James J. & Brusco, Sandro & Lopomo, Giuseppe, 2010. "Split-award procurement auctions with uncertain scale economies: Theory and data," Games and Economic Behavior, Elsevier, vol. 69(1), pages 24-41, May.
    7. Lluis Bru & Daniel Cardona, 2016. "Strategic Sourcing in Procurement," DEA Working Papers 82, Universitat de les Illes Balears, Departament d'Economía Aplicada.
    8. Stenbacka, Rune & Tombak, Mihkel, 2012. "Make and buy: Balancing bargaining power," Journal of Economic Behavior & Organization, Elsevier, vol. 81(2), pages 391-402.
    9. Alcalde, Jose & Dahm, Mathias, 2016. "Dual Sourcing with Price Discovery," QM&ET Working Papers 16-1, University of Alicante, D. Quantitative Methods and Economic Theory.
    10. Bhaskar, Venkataraman, 2013. "Dynamic Countervailing Power under Public and Private Monitoring," CEPR Discussion Papers 9526, C.E.P.R. Discussion Papers.
    11. Heese, H. Sebastian, 2015. "Single versus multiple sourcing and the evolution of bargaining positions," Omega, Elsevier, vol. 54(C), pages 125-133.

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