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The National Bureau of Economic Research is dedicated to conducting and disseminating nonpartisan economic research.

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linkhttp://www.nber.org calendar_today22-05-2009 14:30:37

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3 years ago

US inter-county migration from 1850–1940 was relatively constant in frequency and selectivity, but changed substantially in its origins and destinations, becoming an important driver of urbanization, from @ariellzimran nber.org/papers/w30384

US inter-county migration from 1850–1940 was relatively constant in frequency and selectivity, but changed substantially in its origins and destinations, becoming an important driver of urbanization, from @ariellzimran nber.org/papers/w30384