U.S. Economic Growth – Retrospect and Prospect: Lessons from a Prototype Industry-Level Production Account for the United States, 1947-2012. Dale Jorgenson, March 25, 2015, Paper. “In order to analyze the long-term growth of the U.S. economy we have constructed a new data set on the growth of U.S. output and productivity by industry for 1947-2012. This includes the output for each of the 65 industries represented in the U.S. national accounts, as well as the inputs of capital (K), labor (L), energy (E), materials (M), and services (S). The key indicator of innovation is productivity growth for each industry, where productivity is…”  Link