| Summary/Abstract |
Are terrorist groups with multiple home bases more or less predisposed to direct their violence at home or abroad? Moreover, what are the determinants of home-base terrorist attacks? We address those and related questions using the Extended Data on Terrorist Groups for 1970–2016. In so doing, we find that religious terrorist groups are less inclined than groups with other ideologies to conduct home-base attacks. In addition, multi-base terrorist groups are more apt to attack within their base country or countries after, but not before, 1990. In addition, our empirics indicate that terrorist groups with an empire goal are more inclined to attack outside their home base than groups possessing other goals (e.g., policy change or territorial ambitions). Democracy encourages home-base terrorist attacks.
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