Gordon, Robert J. - National Bureau of Economic Research (NBER) - 2012
years of relatively rapid productivity growth between 1890 and 1972. Once the spin-off inventions from IR #2 (airplanes, air … conditioning, interstate highways) had run their course, productivity growth during 1972-96 was much slower than before. In … between 1860 and 2007. These include demography, education, inequality, globalization, energy/environment, and the overhang of …