Contrary to traditional queueing theory, recent field studies in health care and call centers indicate that pooling queues may not lead to operational efficiencies relative to dedicated queues. We use a series of three experiments to examine the conditions under which this may be the case and to...

We consider a queueing system where some of the customers are redirected from one queue to the other. We distinguish between those who are redirected and those who exit the system after being served by their service rate. Although it is assumed that all external arrived and services are...

We study a service system in which customers make a join-or-balk decision upon arrival and make a purchase-quantity decision when they are served. Empirical evidence shows that customers in this setting tend to consume more to amortize their sunk waiting costs. We model this sunk cost fallacy...

This paper considers a tandem queueing system, in which stage 1 has one station serving multiple classes of arriving customers differing in their service requirements and related delay costs, and stage 2 has multiple parallel stations, each of which provides one type of service. Each station has...

We study an M/M/1/K queue where customers can reschedule their appointments. Rescheduled customers show up with higher probabilities, incurring lower no-show costs, but rescheduling also frees up slots that may not be filled later, leading to wasted service capacity and lower throughput. The...