Purpose: The objective of this paper was to determine the actual needs of customers in 3 groups: passenger cars, buses, and truck refrigerators who bring their vehicles to the Service Center to be air conditioner repaired. Design/methodology/approach: We investigated at how variables including...

In this paper, we consider a single-server queuing system whose service quality is either high or low. The server, who knows the actual quality level, can signal such quality information to customers via revealing or concealing his queue length. Based on this and the observed queue length in the...