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Quality Implications of Warranties in a Supply Chain

Listed author(s):
  • Kashi R. Balachandran


    (Leonard N. Stern School of Business, New York University, New York, New York 10012)

  • Suresh Radhakrishnan


    (School of Management, University of Texas at Dallas, Richardson, Texas 75083-0688)

Registered author(s):

    We examine a supply chain in which the final product consists of components made by a buyer and a supplier. In the single moral-hazard case, the buyer's quality is observable, whereas in the double moral-hazard case, the buyer's quality is not observable. The supplier's quality is not observable in both the single and double moral-hazard cases. In each case, we examine a warranty/penalty contract between the buyer and the supplier based on information from incoming inspection and external failures. When the warranty contract is based on information from external failures in the single moral-hazard case, the first-best quality is achieved, whereas in the double moral-hazard case, the first-best quality is achieved if the supplier is not held responsible for the buyer's defects. When the warranty contract is based on information from incoming inspection, the first-best is achieved in both the single and double moral-hazard cases, even when the incoming inspection does not identify all of the supplier's defectives. An analysis of whether the penalty on the supplier in each case meets a fairness criterion---that is, the penalty does not exceed the manufacturer's external failure cost---indicates that the fairness criterion is met by the warranty contract based on information from incoming inspection when the first-best incoming inspection is sufficiently high. However, if the first-best incoming inspection is low and the precision of pinpointing the supplier's responsibility for external failure is sufficiently high, the warranty contract based on external failures could satisfy the fairness criterion.

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    Article provided by INFORMS in its journal Management Science.

    Volume (Year): 51 (2005)
    Issue (Month): 8 (August)
    Pages: 1266-1277

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    Handle: RePEc:inm:ormnsc:v:51:y:2005:i:8:p:1266-1277
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    1. Diane J. Reyniers & Charles S. Tapiero, 1995. "The Delivery and Control of Quality in Supplier-Producer Contracts," Management Science, INFORMS, vol. 41(10), pages 1581-1589, October.
    2. Russell Cooper & Thomas W. Ross, 1985. "Product Warranties and Double Moral Hazard," RAND Journal of Economics, The RAND Corporation, vol. 16(1), pages 103-113, Spring.
    3. Dowdell, Thomas D. & Govindaraj, Suresh & Jain, Prem C., 1992. "The Tylenol Incident, Ensuing Regulation, and Stock Prices," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 27(02), pages 283-301, June.
    4. Stanley Baiman & Paul E. Fischer & Madhav V. Rajan, 2000. "Information, Contracting, and Quality Costs," Management Science, INFORMS, vol. 46(6), pages 776-789, June.
    5. Mann, D.P. & Wissink, J.P., 1990. "Money-Back Warranties Vs. Replacement Warranties: A Simple Comparaison," Department of Economics Working Papers 141, Department of Economics, Williams College.
    6. Mann, Duncan P & Wissink, Jennifer P, 1990. "Money-Back Warranties vs. Replacement Warranties: A Simple Comparison," American Economic Review, American Economic Association, vol. 80(2), pages 432-436, May.
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