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This paper studies the impact of U.S. immigration barriers on global knowledge production. We present four key findings. First, among Nobel Prize winners and Fields Medalists, migrants to the U.S. play a central role in the global knowledge network—representing 20-33% of the frontier knowledge...
Persistent link: https://www.econbiz.de/10013226450
This paper studies the impact of U.S. immigration barriers on global knowledge production. We present four key findings. First, among Nobel Prize winners and Fields Medalists, migrants to the U.S. play a central role in the global knowledge network— representing 20-33% of the frontier...
Persistent link: https://www.econbiz.de/10013251541
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used to draft servicemen. -- crime ; violence ; military ; two-sample IV ; Vietnam War … service on crime. Using exact dates of birth for inmates in state and federal prisons in 1979, 1986, and 1991, we find robust … veteran status, these estimates imply that military service increases the probability of incarceration for a violent crime by …
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