The IMF’s Regional Economic Outlook for the Western Hemisphere, released on Thursday in Lima, Peru, projects regional growth of 2½ percent in 2014, down from 2¾ percent in 2013. Weak investment and subdued demand for the region’s exports held back activity in 2013, as did increasingly binding supply bottlenecks in a number of economies. For 2015, the IMF projects a modest pickup, to 3%.