The science and psychology of the queue. This week Evan and his guests look at how businesses manage queuing.

We're often told that queuing is one of those quintessential British habits which embodies our sense of fair play: that we should wait our turn. Despite technological innovation. queuing remains one of those unavoidable things we all have to do: be that on-line, waiting for a bus or to pay for our groceries at the check-out. But what does it mean for businesses? How do they go about managing queues and our expectations of those as customers?

Producer: Jim Frank.