Siegel, Donald S.; Griliches, Zvi - 2021
outsourcing. Our preliminary evidence, based on data that are not comprehensive, suggests that an industry's propensity to … outsource is unrelated to its acceleration in productivity. In auditing the industry numbers, we found that a non …-negligible number of sectors were not consistently defined over time. Using industry and establishment-level data sets (the NBER 4-digit …