If data really is the oil of the 21st century, there’s no doubt who’s playing John D. Rockefeller, says the Financial Times. Michael Bloomberg has built a $94bn private fortune from his eponymous financial data empire – “only Warren Buffett has ever made more money out of the business of money”. Indeed, some argue that the Bloomberg behemoth, which has claimed one-third of the roughly $37bn global financial data and analytics market for
