Mr King said surplus countries around the world are not stimulating enough to offset belt-tightening by deficit states such as the UK, US and Spain, citing the eurozone as a "microcosm" of the problem. "I was struck by the mood at the G7 meeting in Canada, where several of the major economies around the world said quite openly that they were relying on external demand growth to generate growth in their economy. That can't be true of everybody," he said.