The article examines whether cultural groups tend to use supernatural beliefs more to explain natural phenomena or social phenomena. Analysis of ethnographic text from 114 diverse societies reveals that supernatural explanations are more common for natural phenomena, consistent with the theory that humans tend to perceive intent and agency in the natural world. However, supernatural explanations of social phenomena were more prevalent in urbanized societies with greater social complexity and anonymity. The study highlights how people use supernatural beliefs to explain their world and how this varies across small-scale and urbanized communities.

This article tests the effects of variables associated with political participation on the frequency of internal warfare. Findings suggest support for the hypothesis that democracies rarely fight each other.

This study analyzes several variables that influence matrilocal versus patrilocal residence. Results indicate that the traditional assumption that division of labor determines residence was not supported. Rather, results suggest that internal warfare favors partilocal residence and matrilocal residence is favored by purely external warfare if division of labor is matridominant.