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...

A growing body of work has shown that the quality of national institutions that enforce written contracts plays an important role in shaping a country's comparative advantage. Using highly disaggregated bilateral and unique harmonized firm-level trade data across a large number of countries,...