We investigate the extent to which conflicts between Native American tribes and U.S. Army troops were caused by poor economic conditions in Europe from 1869 to 1890. We hypothesize that contractions in economic activity pushed many Europeans to move to the western United States in search of...

Are states led by women less prone to conflict than states led by men? We answer this question by examining the effect of female rule on war among European polities over the 15th-20th centuries. We utilize gender of the first born and presence of a female sibling among previous monarchs as...