Axel Dreher, Martin Gassebner, Paul Schaudt, 12 August 2017

Stricter immigration and visa policies are a common reaction to terrorist attacks. This column uses historical data from 20 OECD countries to show that while the number of terror attacks increased with the number of foreigners living in a host country, migrants were not more likely to become terrorists than the locals of the country in which they were living. The results also show that bans on Muslim immigration would be more likely to increase the risk of terror than make the domestic population safer.

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