LEXINGTON, Mass.--(BUSINESS WIRE)--The global economy is expected to expand at a rate of 3.0 percent or slightly higher in 2015 after three years of global growth stuck in the 2.5 percent range, according to a forecast from Nariman Behravesh, chief economist for IHS (NYSE:IHS), the global leader in critical information and insight. Solid and improving growth in the United States and a slight pickup in the pace of Eurozone economic activity contribute to the moderately upbeat assessment, Behrave