Evolution, Process Variety, and Regional Trajectories of Technological Change in U.S. Manufacturing

摘要: Technological variety is a central component in evolutionary accounts of economic growth and change. Without variety, the process selection, by which certain products processes production are favored market, cannot operate. Empirical analysis confirms that U.S, technology, measured pair capital labor input coefficients, varies markedly over space. Furthermore, relative positions regions two-dimensional technology-space appears consistent across industries. With industry-mix effects partially removed, multivariate variance regional differences techniques statistically significant. Additional investigation reveals spatial variations persist time. These findings support claims theorists, demonstrating U.S. manufacturing industries tend to move along distinct trajectories technological