Abstract U.S. firms have reduced their investment in scientific research ("R") compared to product development ("D"), raising questions about the returns to each type of investment, and about the reasons for this shift. We use Census data that disaggregates "R" from "D" to study how US firms...

Since the 1970s, computerized machine tools have been replacing semi-skilled manufacturing workers, contributing to factory automation. We build a novel measure of exposure to computer numerical control (CNC) based on initial variation in tool types across industries and differential shifts...

While many countries have become ever more open and welcoming for foreign investment, the awareness of risks for national security stemming from or related to international investment has increased. Many governments have thus introduced policies that seek to protect their national security with...