The fascinating theory that 'The Economist' magazine covers are like cabbies offering share tips

Getty/Philippe Lopez The Economist magazine is known for many things, including thought-provoking covers on what’s happening in the global economy, markets and politics. Aside from creating debate, those covers, according to Greg Marks and Brent Donnelly, analysts at Citibank, are also useful from another perspective: they’re often a contrarian indicator, pointing to a particular trend that’s been dominating financial markets that may be coming to an end. “The Magazine Cover Indicator is...