Fewer Federal Reserve officials expect the central bank to raise interest rates more than once this year, as policy makers gave a mixed picture of a U.S. economy where growth is picking up and job gains are slowing. While the median forecast of 17 policy makers remained at two quarter-point hikes this year, the number of officials who see just one increase rose to six from one in the previous forecasting round in March, according to projections released by the Federal Open Market Committee on Wednesday following a two-day meeting in Washington. “The pace of improvement in the labor market has slowed while growth in ... (full story)