essentially unable to explain any effects of sectoral reallocation on aggregate productivity or related quantities (such as the … in this setting are then shown to have first-order effects on aggregate productivity and real wages, and can explain the …

focuses on two effects--the effect of increased productivity in the computer-producing sector and the effect of investments in … computing equipment on the productivity of those who use them--and concludes that together they account for almost all of the … recent acceleration in U.S. labor productivity. In calculating the computer-usage effect, standard NIPA measures of the …

manufacturing sector has little or no significant effect on the productivity of other sectors. Using value-added data, however, we …