Do cities benefit from hosting major financial centres? Ivana Davidovic discovers the history of Canary Wharf - London's old docks area and now a banking district. Mark Yeandle, author of Z/Yen's Global Financial Centres Index, explains why having a successful financial sector may not benefit everyone. And how should you meet the threat of job-stealing robots? Author Leonard Mlodynow says it's down to changing the way you think. (Photo: London's Canary Wharf financial district, Credit: Getty Images)