We study the instability of hyper-specialization of exports. We have two main findings. (1) Specializations are surprisingly unstable: Export ranks are not persistent, and new top products and destinations replace old ones. Measurement error is unlikely to be the main or only determinant of this...

We study the distribution of economic activity, as proxied by lights at night, across 250,000 grid cells of average area 560 square kilometers. We first document that nearly half of the variation can be explained by a parsimonious set of physical geography attributes. A full set of country...

Economists have long debated whether the real exchange rate (RER) has a significant impact on export performance and output growth. Some claim that export performance depends only on nonprice competition and the RER is irrelevant to long-run growth, whereas others argue that the RER is a key...

While trade integration is often regarded as a principal determinant of economic growth, the empirical evidence for a causal linkage between trade and growth is ambiguous. This paper argues that the effect of trade in dynamic panel estimations depends crucially on the specification of trade....