Adapted from materials provided by Brown University.

ScienceDaily — Two Brown University economists have created a new data set explaining differences in the world’s current per capita gross domestic products (GDPs). In a National Bureau of Economic Research working paper, Louis Putterman and David N. Weil introduce a “World Migration Matrix” showing that inequality among countries can be largely explained by where the ancestors of each country’s people lived some 500 years ago.

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