Short-Term Outlook Remains Bright, as Economy Continues to Build Momentum NEW YORK, Jan. 23, 2015 /PRNewswire/ — The Conference Board Leading Economic Index® (LEI) for the U.S. increased 0.5 percent in December to 121.1 (2010 = 100), following a 0.4 percent increase in November, and a 0.6 percent increase October. “December’s gain in the LEI was…