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arXiv 2102.07644math.OCmath.PR
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$M/M/1$反馈队列中的顾客策略行为

Strategic Customer Behavior in an $M/M/1$ Feedback Queue

Mark Fackrell, Peter Taylor, Jiesen Wang

摘要:

研究了$M/M/1$反馈排队系统的均衡行为,其中价格和时间敏感的顾客在服务价值和单位等待时间成本方面是同质的。到达后,客户可以观察系统中的客户数量,然后决定加入或拒绝。顾客按到达的顺序被招待。顾客在得到服务后,要么以$q$的概率成功地完成服务并离开系统,要么服务失败,顾客立即加入队列的末尾等待再次得到服务,直到她成功地完成服务.我们将此判定问题分析为顾客之间的非合作对策.我们证明了存在唯一的对称纳什均衡阈值策略。然后证明了对称纳什均衡阈值策略是进化稳定的。此外,如果我们放宽策略限制,允许客户反悔,在新的纳什均衡,客户有更大的动机加入。然而,这并不一定会增加均衡预期收益,对于某些参数值,它会降低它。

英文摘要:

We investigate the behavior of equilibria in an $M/M/1$ feedback queue where price and time sensitive customers are homogeneous with respect to service valuation and cost per unit time of waiting. Upon arrival, customers can observe the number of customers in the system and then decide to join or to balk. Customers are served in order of arrival. After being served, each customer either successfully completes the service and departs the system with probability $q$, or the service fails and the customer immediately joins the end of the queue to wait to be served again until she successfully completes it. We analyse this decision problem as a noncooperative game among the customers. We show that there exists a unique symmetric Nash equilibrium threshold strategy. We then prove that the symmetric Nash equilibrium threshold strategy is evolutionarily stable. Moreover, if we relax the strategy restrictions by allowing customers to renege, in the new Nash equilibrium, customers have a greater incentive to join. However, this does not necessarily increase the equilibrium expected payoff, and for some parameter values, it decreases it.

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