ABSTRACTThis study examines the effect of economic sanctions on the severity of ongoing instances of genocide or politicide. Research suggests that sanctions exacerbate human rights conditions, yet influential policymakers, human rights advocates and some scholars continue to call for economic sanctions to mitigate ongoing atrocities. Ordered logit analyses of genocides and politicides from 1976 to 2008 reveal that sanctions neither aggravate atrocities, as some of the academic literature expects, nor alleviate them, as assumed by many policymakers and advocates (and some researchers). These findings hold regardless of whether they are measured as the number or presence of sanctions, cost, level of comprehensiveness, duration or whether imposed or administered by an international organization. Threats of sanctions also have no effect on atrocity severity, either on their own or combined with other policy options.