Scientists have most impact when they're free to move. An analysis of researchers' global mobility reveals that limiting the circulation of scholars will damage the scientific system, based on 14 million papers from nearly 16 million unique individuals who published between 2008 and 2015.

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Scientists have most impact when they're free to move. An analysis of researchers' global mobility reveals that limiting the circulation of scholars will damage the scientific system, based on 14 million papers from nearly 16 million unique individuals who published between 2008 and 2015.