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...

This paper exploits information from two different datasets to provide a novel and multi-dimensional picture of the engagement of all sub-Saharan African countries in global value chains (GVCs). It documents in detail the nature of the underlying data and the way it is used to construct several...