A new report [1] reviews the importance of manufacturing to local economies throughout the United States. The manufacturing sector added roughly 500.000 new jobs from the beginning of 2010 through the end of 2012, and contributed more than 25 percent of the overall growth in groww output between 2009 and 2011. This report finds that nearly all staes include some counties where manufacturing accounts for a significant share of jobs and earning. “The Geographic Concentration of Manufacturing Across the United States” uses smaller geographic areas to find where manufacturing matters most to a local economy. It finds that such counties are concentrated in the Midwest and the South, are more likely to be outside metropolitan areas, and are relatively small.