A surprise pick-up in U.S. jobs growth has boosted the chances of the Federal Reserve raising interest rates sooner than had been expected, but it is likely to take several more months of strong employment data for the Fed to trim its bond purchases and rates won't rise for at least a year after that. "The surprising improvement in the health of the labor market does not necessarily mean the Fed will start to look at an exit from its asset buying program any time soon," Markit chief market economist Chris Williamson said. "A sustained run of stronger job creation than even the nice surprise seen in February is ... (full story)