The cultural significance of Ed Miliband’s mockney accent

I’m mildly posh – nowhere near David Cameron posh, for example, let alone the Olympian heights of Brian Sewell, but I’m unlikely to ever play a football hooligan or an East End gangster in a Guy Ritchie film. And I’m better spoken than I was as a teenager, when I used to affect a slight Mockney accent with a mild Jafaican inflection, as is the case with most Londoners born after about 1976.