Southern African countries-mainly Zambia and the Democratic Republic of the Congo-account for around a seventh of global production of copper. In the 2010s, they imported over a third of the associated capital goods and components from South Africa. Given this strength, some observers suggest...

This paper exploits a short-lived cooperation program between the U.S.S.R. and China, which led to the construction of 156 "Million-Rouble plants" in the 1950s. We isolate exogenous variation in location decisions due to the relative position of allied and enemy airbases and study the long-run...