There is surprisingly little evidence on how terror attacks impact elections. With only a few exceptions, previous studies in this literature have focused on a particular country or attack, limiting their generalizability. Ours is the first comprehensive, multi-country examination of the effects...

We use a rigorous three-stage many-analysts design to assess how different researcher decisions—specifically data cleaning, research design, and the interpretation of a policy question—affect the variation in estimated treatment effects. A total of 146 research teams each completed the same...