I was in a meeting recently between MPs and BBC execs. The former wanted to talk about one thing: getting more of the BBC’s jobs and spending out of London. Fair enough. Our national broadcaster should be… national.

Everyone agrees on the need to increase the range of people and perspectives on our screens but how much difference would it make economically?

By coincidence, research has just been released with the answer. It quantifies the impact of the single........

© The Guardian