The next world economic downturn is most likely to come from the U.S., Fitch Ratings' chief economist has warned. "The risk of a global recession ... the first place I would look for that would be the U.S. and there is definitely some weakness in their economy," Brian Coulton said at a Fitch conference in London. As the world's largest economy, the health of the U.S. is viewed as crucial to the success of the world's economy. In July, the International Monetary Fund cut its global growth forecast for 2016 to 3.1 percent from 3.2 percent and its U.S. outlook to 2.2 percent from 2.4 percent. A global recession is not Fitch's base-case scenario, although Coulton noted that economic growth since the financial crisis of 2007-08 had been weak. "It has been a sub-par recovery … It has been disappointing … but we haven't seen the sort of things that would drive a recession," he said. Coul