This article examines the evolution of games, particularly the way the complexity of games is affected by political organization, demographics, social differentiation, and religious differentiation.

This study proposes that extended family households are more common when a mother or father in a one-family household cannot meet activity requirements. Empirical analysis suggests that this trend occurs in both agricultural and non-agricultural societies.

This study presents a log linear analysis of the relationship between plow agriculture, female crop tending, and polygyny. The hypothesis was not supported.

This study presents a model of sexual division of labor using entailment analysis that accounts for distance of the task away from home and danger of the task. Results support the notion that childbirth and nursing are the main constraints on the sexual division of labor and that men tend to be allocated tasks that are more distant and dangerous.

This study advances the status envy hypothesis of sex identification to explain customs such as male initiation ceremonies and the couvade. Theory of sex identification is discussed; resource withholding, exclusive mother-child sleeping, patrilocality, father absence, female status, and initiation are all considered. Hypotheses are supported with empirical tests.

Authors Michael Burton and Douglas White present and test an ecological model for the process of agricultural intensification that aims to explain variance in (and the reduction in) female contribution to agriculture. The model synthesizes and expands upon findings put forth by previous studies in order to create a more comprehensive design. Results suggest that the strongest predictors of female contribution to agriculture are the number of dry months, the importance of domesticated animals to subsistence, and the use of the plow in farming. Crop type, although a weaker predictor, is also supported.

In an effort to better understand variation in jealous response cross-culturally, the researchers of this study surveyed 11 different populations, eight of which were small-scale societies on five different continents (Mayangna, Shuar, Tsimane, Himba, Hadza, Karo Batak, Mosuo, and Yasawa) and three of which were in urban settings (Los Angeles, CA, "urban India" (online), and Okinawa, Japan). Looking at the differences between sexual and emotional infidelity, researchers found that greater paternal investment and lower frequency of extramarital sex are associated with more severe jealous response.

This study focuses on the effect of type of warfare and community intermarriage on women's participation in warfare.

This article focuses on the cross-cultural data comparing the relationship between changes in status and availability of important roles, with an emphasis on women. Cultural and structural aspects of society are examined to discover their relationship to the position of women after their child-bearing years.

This study investigates the relationship between Crow kinship terminology and avunculocality. Results indicate that if matrilateral cross-cousin marriage is associated with Crow kinship systems, then societies that are avunculocal are more likely have Crow systems.