The IMF increased on Tuesday its world economic growth estimates for 2010 at 3.9% compared to the previous 3.1% estimate in October but warned that there are many risks like the increase of the state's debt, AFP informs.

The estimate was increased for the US to 2.7% compared to 1.5% in October and China to 10% compared to 9%. In the Euro zone, the estimate was increased to 1% compared to 0.3%. For Japan, the estimated remained unchanged to -1.7%.