There is disagreement between existing theories on the relationship between leisure time and cultural complexity. This study tests Chick's (1986) hypothesis that simple and complex societies have more free time than those of moderate complexity. The relationship between cultural complexity and the economic productivity of children is also examined.

This book discusses the characteristics of adolescence cross-culturally and examines the differences in the adolescent experience for males and females. Several relationships are tested in order to gain an understanding of cross-cultural patterns in adolescence.

The present research investigates food sharing and labor sharing practices of 98 nonindustrial societies. The aims are to: 1) document the frequency and scope of sharing, and 2) test the theory that greater sharing is adaptive in societies subject to more resource stress (including natural hazards).

A study of the relationship between older women and their young female kin. Relationships between women's relationships with their mother-in-laws and subsistence contribution, residence, descent, and food preparation are examined. Findings offer significant support for patterns in the relationship between older women and younger female kin.

This paper proposes that the socio-cultural values of countries may be associated with increased mortality due to COVID-19. Using results from the World Values survey, the author assessed which values had the strongest association with a change in COVID-19 mortality in datasets consisting of all countries, upper-middle and high income economies, upper-middle income economies, high income economies, and advanced economies. The author also sought to determine whether the WVS values that were associated with COVID-19 mortality were also associated with general life expectancy. The results showed that COVID-19 mortality was increased in countries that placed a higher value on freedom of speech, political participation, religion, technocracy, post-materialism, social tolerance, law and order, and acceptance of authority. On the other hand, mortality was decreased in countries with high trust in major companies and institutions and that endorsed maintenance of order as a goal for a country. The author also found that values related to COVID-19 mortality did not predict general health outcomes, and that some values that predicted increased COVID-19 mortality actually predicted decreased mortality from other outcomes.

Using multilevel modeling and society-level regressions as well as mediational path modeling, the authors test two alternative models that consider how resource stress, religious beliefs, and beyond-household food and labor sharing may be related. The resource stress model suggests that high resource stress has two consequences: 1) that such stress may lead to beliefs that gods and spirits are associated with weather and 2) that resource stress leads to more sharing. Furthermore, this model suggests that the relationship between resource stress and sharing is not mediated by god beliefs. The alternative model considered, the moralizing high god model, suggests that resource stress will lead to more sharing but it is mediated by moralizing high gods. Before testing the path models, the authors first consider the relationships between resource stress and beliefs about high gods, superior gods, and minor spirits involvement with weather. Since the results were strongest for high gods, the path models focused on high gods. The results largely support the resource stress model rather than the high god moralizing model.

The author evaluates predictions from the standard model of intensification of food production and suggests it be rejected based on an analysis of 40 societies. The standard model proposes that food producers will increase their energy input until the maximum possible output is achieved, at which point output and labor productivity will fall and producers will invent or adopt new technologies. He then proposes a different model, which he terms the cultural niche construction model. The cultural niche construction model proposes that societies will minimize their energy input while maximizing their returns through continual technological adaptation and niche construction. After predictions from this second model are tested, the author suggests tentatively accepting the cultural niche construction model as a new framework to explain transitions to complex societies.

This chapter examines the relationship between social cohesion (measured using variables like subsistence type, stable work teams, and settlement patterns) and musical cohesion. All hypotheses are supported.

A large-scale comparative study of folk songs around the world employing systematic measures (cantometrics). The aim was not just to describe variation but to test hypotheses about the relationships between song style and societal structures. Dance was also considered.

In asking whether or not there are meaningful universals in music, researchers compiled two catalogs – the Natural History of Song (NHS) Ethnography which contains ethnographic descriptions of song performances collected from eHRAF World Cultures, and the NHS Discography, which contains field recordings of performances of dance, healing, love, and lullaby. Using these two corpora, the study tests a variety of hypotheses about the universality and variability of both music behavior and music form. Specifically, whether there are meaningful universals in meaning and sound. The catalog of published sound recordings was analyzed by machine summaries, listener ratings, and manual transcriptions, which revealed that there were identifiable features of songs which could then predict their primary function cross-culturally. The results as a whole revealed that the existence of music is a cultural universal, and that the variation within music can be characterized by three factors assessing the formality, arousal, and religiosity of the song events. They also found that musical behavior varies more within societies than between them.