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Queuing for Expert Services

Author

Listed:
  • Laurens G. Debo

    (Graduate School of Business, University of Chicago, Chicago, Illinois 60637)

  • L. Beril Toktay

    (College of Management, Georgia Institute of Technology, Atlanta, Georgia 30308)

  • Luk N. Van Wassenhove

    (Technology and Operations Management, INSEAD, 77305 Fontainebleau, France)

Abstract

We consider a monopolist expert offering a service with a "credence" characteristic. A credence service is one in which the customer cannot verify, even after a purchase, whether or not the amount of prescribed service was appropriate; examples include legal, medical, or consultancy services, and car repair. This creates an incentive for the expert to "induce service," that is, to provide unnecessary services that add no value to the customer, but that allow the expert to increase his revenues. We focus on the impact of an operations phenomenon on service inducement--workload dynamics due to the stochasticity of interarrival and service times. To this end, we model the expert's service operation as a single-server queue. The expert determines the service price within a fixed and variable fee structure and determines the service inducement strategy. We characterize the expert's combined optimal price structure and service inducement strategy as a function of service capacity, market potential, inducement opportunity, value of service and waiting cost. We find that service inducement is a means to dynamically skim customer surplus with state-independent prices and provision of slower service to customers that arrive when the expert is idle. We conclude with design implications of our results in limiting service inducement.

Suggested Citation

  • Laurens G. Debo & L. Beril Toktay & Luk N. Van Wassenhove, 2008. "Queuing for Expert Services," Management Science, INFORMS, vol. 54(8), pages 1497-1512, August.
    • Handle: RePEc:inm:ormnsc:v:54:y:2008:i:8:p:1497-1512
    DOI: 10.1287/mnsc.1080.0867
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    References listed on IDEAS

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    1. Martin A. Lariviere & Jan A. Van Mieghem, 2004. "Strategically Seeking Service: How Competition Can Generate Poisson Arrivals," Manufacturing & Service Operations Management, INFORMS, vol. 6(1), pages 23-40, January.
    2. Winand Emons, 1997. "Credence Goods and Fraudelent Experts," RAND Journal of Economics, The RAND Corporation, vol. 28(1), pages 107-119, Spring.
    3. Yuk-fai Fong, 2005. "When Do Experts Cheat and Whom Do They Target?," RAND Journal of Economics, The RAND Corporation, vol. 36(1), pages 113-130, Spring.
    4. Wolfgang Pesendorfer & Asher Wolinsky, 2003. "Second Opinions and Price Competition: Inefficiency in the Market for Expert Advice," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 70(2), pages 417-437.
    5. Eric Delattre & Brigitte Dormont, 2003. "Fixed fees and physician‐induced demand: A panel data study on French physicians," Health Economics, John Wiley & Sons, Ltd., vol. 12(9), pages 741-754, September.
    6. Hassin, Refael, 1986. "Consumer Information in Markets with Random Product Quality: The Case of Queues and Balking," Econometrica, Econometric Society, vol. 54(5), pages 1185-1195, September.
    7. Emons, Winand, 2001. "Credence goods monopolists," International Journal of Industrial Organization, Elsevier, vol. 19(3-4), pages 375-389, March.
    8. Ajay Kalra & Mengze Shi & Kannan Srinivasan, 2003. "Salesforce Compensation Scheme and Consumer Inferences," Management Science, INFORMS, vol. 49(5), pages 655-672, May.
    9. Asher Wolinsky, 1993. "Competition in a Market for Informed Experts' Services," RAND Journal of Economics, The RAND Corporation, vol. 24(3), pages 380-398, Autumn.
    10. Ingela Alger & François Salanié, 2006. "A Theory of Fraud and Overtreatment in Experts Markets," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 15(4), pages 853-881, December.
    11. Naor, P, 1969. "The Regulation of Queue Size by Levying Tolls," Econometrica, Econometric Society, vol. 37(1), pages 15-24, January.
    12. Darby, Michael R & Karni, Edi, 1973. "Free Competition and the Optimal Amount of Fraud," Journal of Law and Economics, University of Chicago Press, vol. 16(1), pages 67-88, April.
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