A number of customers for a good or service waiting to be served. Queue discipline describes the order in which customers are served: this may be first-come first-served, random order, or last-in first-out, or some system of priorities may be used. Queuing models analyse the behaviour of queues, often using numerical simulation, and explore efficient ways of handling queues.
Reference: Oxford Press Dictonary of Economics, 5th edt.
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