Information cascades in a queueing system with parallel servers

Refael Hassin, Ricky Roet-Green

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

When a customer makes an appointment at the doctor, call the plumber or reserve flight tickets, he joins a queue. By making the reservation, the customer can learn his position in the service provider's queue. If the customer is unsatisfied with his position, he might consider calling an alternative service provider, hoping to get a better position. In our model, the service is provided by n parallel servers. Upon arrival to the system, each customer randomly chooses one server and inspects it. Then, he either joins it or inspects another queue. If he inspects another queue, he can join the shorter queue, or continue his search and inspect another queue. We assume that each inspection is associated with a fixed cost. The solution of this model is not straightforward even when n = 2, and is characterized by cascades. In equilibrium, there exist isolated queue lengths (holes) at which customers inspect the other queue. In other queue lengths customers join the first queue. In some cases, there exist queue lengths at which customers adopt a mixed strategy.

Original languageEnglish
Title of host publicationProceedings of the 2012 6th International ICST Conference on Performance Evaluation Methodologies and Tools, VALUETOOLS 2012
Pages31-37
Number of pages7
DOIs
StatePublished - 2012
Event2012 6th International ICST Conference on Performance Evaluation Methodologies and Tools, VALUETOOLS 2012 - Cargese, France
Duration: 9 Oct 201212 Oct 2012

Publication series

NameProceedings of the 2012 6th International ICST Conference on Performance Evaluation Methodologies and Tools, VALUETOOLS 2012

Conference

Conference2012 6th International ICST Conference on Performance Evaluation Methodologies and Tools, VALUETOOLS 2012
Country/TerritoryFrance
CityCargese
Period9/10/1212/10/12

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