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Incomplete Contracts in Multi-period Procurement

Author

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  • Vitali Gretschko

    (University of Mannheim, 68131 Mannheim, Germany; ZEW - Leibniz-Zentrum für Europäische Wirtschaftsforschung GmbH, 68161 Mannheim, Germany)

  • Martin Pollrich

    (University of Bonn, 53113 Bonn, Germany)

Abstract

We analyze the problem of a buyer who purchases a long-term project from one of several suppliers. A changing state of the world influences the costs of the suppliers. We distinguish between complete contracts conditioning on all future realizations of the state of the world and incomplete contracts renegotiated whenever the state of the world changes. We provide conditions such that incomplete contracting does not pose a problem. If the changing state of the world is publicly observable and the buyer cannot switch between suppliers during the lifetime of the project, the buyer achieves the same surplus irrespective of whether contracts are complete or incomplete. An English auction followed by renegotiation whenever the state of the world changes is optimal. To identify conditions when buyers should consider drafting complete contracts, we extend the analysis by considering private information about the changing state of the world and supplier switching. In both cases, incomplete contracting poses a problem. In a survey of procurement consultants, we confirm that publicly observable states of the world via price indexes play an important role in procurement. Moreover, the consultants confirm that supplier switching is infrequent in procurement practice. Thus, incomplete contracting is less of a problem in a considerable share of procurement projects. However, complete contracts are useful and could be used more often.

Suggested Citation

  • Vitali Gretschko & Martin Pollrich, 2022. "Incomplete Contracts in Multi-period Procurement," Management Science, INFORMS, vol. 68(7), pages 5146-5161, July.
    • Handle: RePEc:inm:ormnsc:v:68:y:2022:i:7:p:5146-5161
    DOI: 10.1287/mnsc.2021.4123
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    References listed on IDEAS

    as
    1. Jean Tirole, 2009. "Cognition and Incomplete Contracts," American Economic Review, American Economic Association, vol. 99(1), pages 265-294, March.
    2. Bajari, Patrick & Tadelis, Steven, 2001. "Incentives versus Transaction Costs: A Theory of Procurement Contracts," RAND Journal of Economics, The RAND Corporation, vol. 32(3), pages 387-407, Autumn.
    3. Skreta, Vasiliki, 2015. "Optimal auction design under non-commitment," Journal of Economic Theory, Elsevier, vol. 159(PB), pages 854-890.
    4. Jean Tirole, 2016. "From Bottom of the Barrel to Cream of the Crop: Sequential Screening With Positive Selection," Econometrica, Econometric Society, vol. 84(4), pages 1291-1343, July.
    5. John Riley & Richard Zeckhauser, 1983. "Optimal Selling Strategies: When to Haggle, When to Hold Firm," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 98(2), pages 267-289.
    6. Qingmin Liu & Konrad Mierendorff & Xianwen Shi & Weijie Zhong, 2019. "Auctions with Limited Commitment," American Economic Review, American Economic Association, vol. 109(3), pages 876-910, March.
    7. Surajeet Chakravarty & W. Bentley MacLeod, 2009. "Contracting in the shadow of the law," RAND Journal of Economics, RAND Corporation, vol. 40(3), pages 533-557, September.
    8. Roberto Burguet, 2017. "Procurement Design with Corruption," American Economic Journal: Microeconomics, American Economic Association, vol. 9(2), pages 315-341, May.
    9. Jason Shachat & Lijia Tan, 2015. "An Experimental Investigation of Auctions and Bargaining in Procurement," Management Science, INFORMS, vol. 61(5), pages 1036-1051, May.
    10. Eső, Péter & Szentes, Balázs, 2017. "Dynamic contracting: an irrelevance theorem," LSE Research Online Documents on Economics 69403, London School of Economics and Political Science, LSE Library.
    11. Eső, Péter & Szentes, Balázs, 2017. "Dynamic contracting: an irrelevance theorem," Theoretical Economics, Econometric Society, vol. 12(1), January.
    12. Fabian Herweg & Klaus M. Schmidt, 2015. "Loss Aversion and Inefficient Renegotiation," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 82(1), pages 297-332.
    13. Oliver Hart, 2017. "Incomplete Contracts and Control," American Economic Review, American Economic Association, vol. 107(7), pages 1731-1752, July.
    14. Zhixi Wan & Damian R. Beil, 2009. "RFQ Auctions with Supplier Qualification Screening," Operations Research, INFORMS, vol. 57(4), pages 934-949, August.
    15. Fabian Herweg & Klaus M. Schmidt, 2020. "Procurement with Unforeseen Contingencies," Management Science, INFORMS, vol. 66(5), pages 2194-2212, May.
    16. Pascal Courty & Li Hao, 2000. "Sequential Screening," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 67(4), pages 697-717.
    17. Fudenberg, Drew & Tirole, Jean, 1990. "Moral Hazard and Renegotiation in Agency Contracts," Econometrica, Econometric Society, vol. 58(6), pages 1279-1319, November.
    18. Vitali Gretschko & Achim Wambach, 2016. "Procurement under public scrutiny: auctions versus negotiations," RAND Journal of Economics, RAND Corporation, vol. 47(4), pages 914-934, November.
    19. Fabian Herweg & Marco A. Schwarz, 2018. "Optimal Cost Overruns: Procurement Auctions With Renegotiation," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 59(4), pages 1995-2021, November.
    20. Engelbrecht-Wiggans, Richard & Kahn, Charles M., 1991. "Protecting the winner : Second-price versus oral auctions," Economics Letters, Elsevier, vol. 35(3), pages 243-248, March.
    21. Cuihong Li, 2013. "Sourcing for Supplier Effort and Competition: Design of the Supply Base and Pricing Mechanism," Management Science, INFORMS, vol. 59(6), pages 1389-1406, June.
    22. Georgia Kosmopoulou & Xueqi Zhou, 2014. "Price Adjustment Policies in Procurement Contracting: An Analysis of Bidding Behavior," Journal of Industrial Economics, Wiley Blackwell, vol. 62(1), pages 77-112, March.
    23. Mohammad Akbarpour & Shengwu Li, 2020. "Credible Auctions: A Trilemma," Econometrica, Econometric Society, vol. 88(2), pages 425-467, March.
    24. Zhixi Wan & Damian R. Beil, 2009. "RFQ Auctions with Supplier Qualification Screening," Post-Print hal-00471441, HAL.
    25. Izak Duenyas & Bin Hu & Damian R. Beil, 2013. "Simple Auctions for Supply Contracts," Management Science, INFORMS, vol. 59(10), pages 2332-2342, October.
    26. Hannu Vartiainen, 2013. "Auction Design Without Commitment," Journal of the European Economic Association, European Economic Association, vol. 11(2), pages 316-342, April.
    27. Herweg, Fabian & Schmidt, Klaus M., 2020. "Procurement with Unforeseen Contingencies," Munich Reprints in Economics 84781, University of Munich, Department of Economics.
    28. Patrick Bajari & Stephanie Houghton & Steven Tadelis, 2014. "Bidding for Incomplete Contracts: An Empirical Analysis of Adaptation Costs," American Economic Review, American Economic Association, vol. 104(4), pages 1288-1319, April.
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