Countries that strike it rich when exploring for oil and gas often fail to see growth materialize. This paper shows that one way things can get messy is via squandering new wealth, based on future resource revenues, on arms imports. In the five years following a giant oil or gas discovery, arms...

In the mid-2000s, the production of hearing aids shifted almost entirely to 3D printing. Using difference-in-differences and synthetic control methods, this paper examines the effects of this shift on trade flows. The analysis finds that trade increased roughly 60 percent following the...