The article discusses the role of gender in within-society variation in cooperative behavior, and whether gender differences in cooperation emerge similarly across diverse societies. The authors use cross-cultural datasets of 4- to 15-year-old children's preferences for equality in experimental tasks measuring prosociality and fairness to investigate these questions. They find that gender has little impact on the development of prosociality and fairness within the datasets, and there is not much evidence for substantial societal variation in gender differences. The authors discuss the implications of these findings for understanding the nature and origin of gender differences in cooperation and for future research.

This article uses factor analysis to identify the key variables underlying the many cross-cultural associations reported by Textor (1967). Twelve factors are identified.

The authors investigate environmental reasons for cross-cultural variation in the permissibility of cousin marriages. In particular, they test whether higher levels of pathogen prevalence and geographic isolation increase the likelihood that cousin marriage will be allowed. The authors' underlying theory is that cousin marriages provide protective homozygosity against some pathogens and provide more options when mate choices are limited.

This study used data from the Afrobarometer Survey to compare the cultures of 85 ethnolinguistic groups from 25 African countries on markers of cultural modernization and emancipation, such as attitudes towards gender equality, xenophobia, and the role of religion in society. The study found that nearly all of the ethnolinguistic groups studied within a country clustered together in terms of their attitudes towards cultural modernization. The study also found that the variation between nations was often greater than the variation between ethnolinguistic groups, and that the cultural differences between ethnolinguistic groups within a nation were highly correlated with economic indicators such as GDP per person, employment in agriculture and the service sector, and phone subscriptions per person. The study suggests that economic development and modernization lead to cultural homogenization within a nation and a decreasing relevance of ethnolinguistic culture.

In this article, the authors seek to understand the trajectory of traditional political institutions in Africa and ask how these institutions have changed, if at all, due to colonial interference. They note that "institutions connect the past with the present", though the study of political institutions over time is often overlooked in discussions of institutional persistence and change despite their value to key components of governance and social stability. Thus, these authors investigate whether today's African institutions remain akin to their precolonial, institutional ancestors, and whether colonial governance strategies of indirect or direct rule employed by the British and French have impacted their persistence. They find evidence to support the endurance of traditional institutions in former British colonies (upward trend), whereas evidence for institutional destruction for former French colonies (downward trend).

The authors investigate the relationship between linguistic diversity and various environmental and spatial variables associated with biodiversity. Most of these variables predict linguistic diversity variably across different continents, and more so within Africa and extended Asia (Asia, the Pacific, and Australia) than within Europe and the Americas. This divide is theorized to be a result of differences in demography and impact of colonialism between the two global regions. However, two environmental factors, landscape roughness and density of river systems, are found to be significant predictors across all global regions. The authors suggest that, as in processes of speciation, rough terrain and watercourses both create physical barriers between which languages can develop in isolation while, in the case of river junctions, also providing transportation routes whereby hybrid languages can occasionally manifest.

This study conducted a literature review of papers regarding the association between water insecurity and gender-based violence. The authors found 18 articles that documented this relationship in sub-Saharan Africa and South Asia. The most common form of violence was an increased risk of sexual and physical violence for women who walked long distances to access water. Intimate partner violence was also reported due to household water inadequacy. However, there is a lack of information assessing gender-based violence and water insecurity in Latin America, North America, and Southeast Asia, and involving locally-based scholars. The authors suggest expanding the definition of "violence" in relation to water insecurity and adopting the term "gender-based water violence." They also encourage the development of cross-culturally validated measures of gender-based violence and standardized measures of water insecurity to evaluate interventions.

Do aspects of rituals behave in a systematic way cross-culturally? To answer this question, the authors of this article conduct two different studies. First, they analyze a cross-cultural sample of 651 rituals from 74 societies; to augment this factor analysis, they follow up with survey data collected from individuals in the US, Japan, and India. They find support for the claim that rituals have coherent underlying dimensions. In particular, they find that ritual experiences are clustered in somewhat orthogonal euphoric, dysphoric, frequency, and cognitive dimensions.

This study examines the explicitness of persuasion in cross-cultural communication using a corpus-based register analytical approach. The study compares 2518 speeches from 55 cultures in the East and West from 1970 to 2020 using Multi-Dimensional Analysis (MDA) to identify linguistic features related to persuasion. The results show significant differences between the East and West in terms of the overtness of persuasion, which is generally narrowing over time. The study suggests that political contexts may impact the cross-cultural gap in persuasion explicitness, and offers implications for further research on cultural styles of political persuasion.

This study seeks to investigate the little-understood intermediate region between farming and foraging subsistence strategies. The authors seek to evaluate the extent to which such "middle-ground" subsistence methods actually exist, whether there is any geographical patterning to them, and if different crop assemblages/dependencies make middle-ground subsistence strategies more or less likely. They find that agro-pastoral, cereal-based societies in Africa and Eurasia are more likely to be dependent on farming (defined here as including both cultivation and animal husbandry), whereas societies in North America and those reliant on root crops and arboriculture in the wet tropics incorporate both farming and foraging. They conclude that there is likely more of a "middle-ground" between foraging and farming than has typically been allowed for in the literature.