superstars intensive in R&D, IT and/or human capital. In addition to productivity spillovers, we document the transmission of …Despite competition concerns over the increasing dominance of global corporations, many argue that productivity … spillovers from multinationals to domestic firms justify pro- FDI policies. For the first time, we use firm-to-firm transaction …

productive but also raise the productivity of inventors and plants in other clusters, which are connected to the focal cluster … through their parent firms' networks of innovating plants. Cross-cluster innovation spillovers do not depend on the physical … that features both within- and cross-cluster innovation spillovers. Based on our model, we derive a sufficient statistic …

driven by cost savings/productivity improvements at the task level, its macroeconomic consequences will be given by a version … of Hulten's theorem: GDP and aggregate productivity gains can be estimated by what fraction of tasks are impacted and … average task-level cost savings. Using existing estimates on exposure to AI and productivity improvements at the task level …

consequences of changing firm concentration: productivity, distortions, selection into exporting, scale economies, and … firms is attributable to higher productivity growth rather than differential distortions. Exceptional performance of the top …