IMF chief economist Olivier Blanchard said on Friday he saw no need for further economic stimulus in the Unites States and he did not expect the euro currency to continue to climb against the dollar.
Blanchard also repeated calls for China to speed up the appreciation of its yuan currency as part of a rebalancing of the world economy which would see emerging economies boost their internal demand to help the global recovery.
Asked if the United States should adopt a new economic stimulus package to boost weak consumption and growth there, Blanchard told France 24 television: "No, I think just about all that can be done there has been done for the time being. If there was an expectation of zero growth, then more could be done."
Noting that the U.S. Federal Reserve was considering another round of monetary easing, he said: "I think that the remaining margin for maneuver and for results is rather small in monetary terms. We should not expect miracles."
Turning to Europe, Blanchard said the European Central Bank's monetary policy was "perfectly reasonable" and it needed to keep rates low for as long as possible.
With the euro currency hovering just under $1.40 on Friday, having briefly crossed that threshold the day before, European policymakers have expressed concern about its strength. The chairman of the euro zone finance ministers Jean-Claude Juncker said on Friday in Washington the euro was "too strong."
Asked if he expected the euro to continue to climb against the dollar, the IMF chief economist said: "No, I don't think so. I think we are returning to the parity levels that we saw a few months ago before the European (debt) crisis."
"There is nothing very worrying there," he said, in an interview due to be broadcast later on Friday.
By contrast, Blanchard said there was a "problem" with China's slow progress on the appreciation of the yuan which it announced earlier this year.
"China has clearly decided to boost its internal demand...but they are hesitating on the exchange rate," he said.
"Their strategy is to do it, but to do it slowly... Unfortunately, the world needs it to happen a bit more quickly than that."
Blanchard said he expected the issue of global currencies to be at the top of the agenda at a G20 summit in the South Korean capital Seoul next month after several senior policymakers, including IMF Managing Director Dominique Strauss-Kahn, have raised concerns over a possible wave of competitive depreciations.
"I hope that there will be some progress (in Seoul)," Blanchard said.
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