Global consensus on the need to coordinate economic policies is waning, threatening recovery, the head of the International Monetary Fund said Thursday.

"I think it's fair to say the momentum is, not vanishing, but decreasing, and that's a real threat, because everybody has to keep in mind this mantra that there is no domestic solution to a global crisis," IMF Managing Director Dominique Strauss-Kahn told reporters.

"Many are talking about a currency war," he said, adding however that that may be "a bit too military, but it's fair to say that many do consider their currency as a weapon, and that's certainly not for the good of the global economy."