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Analysis and Comparison of Queues with Different Levels of Delay Information

Author

Listed:
  • Pengfei Guo

    (Department of Logistics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong)

  • Paul Zipkin

    (Fuqua School of Business, Duke University, Durham, North Carolina 27708)

Abstract

Information about delays can enhance service quality in many industries. Delay information can take many forms, with different degrees of precision. Different levels of information have different effects on customers and therefore on the overall system. To explore these effects, we consider a queue with balking under three levels of delay information: no information, partial information (the system occupancy), and full information (the exact waiting time). We assume Poisson arrivals, independent exponential service times, and a single server. Customers decide whether to stay or balk based on their expected waiting costs, conditional on the information provided. We show how to compute the key performance measures in the three systems, obtaining closed-form solutions for special cases. We then compare the three systems. We identify some important cases where more accurate delay information improves performance. In other cases, however, information can actually hurt the provider or the customers.

Suggested Citation

  • Pengfei Guo & Paul Zipkin, 2007. "Analysis and Comparison of Queues with Different Levels of Delay Information," Management Science, INFORMS, vol. 53(6), pages 962-970, June.
    • Handle: RePEc:inm:ormnsc:v:53:y:2007:i:6:p:962-970
    DOI: 10.1287/mnsc.1060.0686
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    References listed on IDEAS

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