And David (1990) noted a historical analogy between the apparent failure of microprocessor-driven innovations to create a surge in US productivity during the 1980s and the limited impact of pre-1920 electrification, decades after the commissioning of the first power plants. US productivity growth, below 1.5%/year between 1973 and 1995, was reversed during the late 1990s when its rate of 2.5%/year was nearly as high as it was between 1960 and 1973.
