Speaking at the Davos forum, economist Nouriel Roubini, who correctly predicted the global economic crisis, says this recovery is likely to peter out by the end of of 2009 with a long period of "sub-par gowth" ahead. His optimism for the emerging market economies is tempered by what he sees as an "asset price bubble" developing in China, Russia's aging population and political obstacles to structural overhauls in Brazil and India. In the U.S. and Europe other economists also generally agreed that the recovery will be "U-shaped" or "W-shaped" implying this recovery in late 2009 will not last beyond 2010.