Will London's post-Brexit future be as gloomy as predicted?

The feared large-scale exodus of firms and financiers does not seem to be under wayIt is now well over three years since the UK voted, by a narrow but significant margin, to leave the EU. Yet we still have no idea what kind of economic relationship the UK will have with the 27 countries it leaves behind. (Some of the debate in London recalls in its insularity the apocryphal 1930s headline: “Fog in Channel: continent cut off.”) Insofar as one can hazard a guess, the most likely outcom