Visa requirements sometimes force young scientists in the US to return to developing countries. That sole act causes those scientists to become less productive and influential.
https://www.mitpressjournals.org/doi/pdf/10.1162/REST_a_00490 …
by @kahn_skahn and MacGarvie via @PMoserEconpic.twitter.com/jrP2xLfzdd
7:38 AM - 11 Jul 2018
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