Incredible central bankers

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The superheroes of 2012 have been the central bankers - with Super Mario at the European Central Bank pledging to do whatever it takes to save the euro and Ben Bernanke providing quantitative easing to infinity and beyond. FT columnist John Plender analyses with capital markets editor, Ralph Atkins, the dangers of this unprecedented central bank action to stave off a 1930s style slump.

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