This article reexamines Coppinger and Rosenblatt’s (1968) finding that romantic love insures marital stability where there is low subsistence dependence between the spouses. Analysis suggests that Coppinger and Rosenblatt’s associated variables, romantic love and subsistence dependence, are only related through their common association with subsistence technology.

This study explores predictors of variation in two dimensions of marital residence patterns among hunter-gatherers: 1) the tendency toward patrilocality versus matrilocality and 2) the tendency toward unilocality versus bilocality.

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).

Using a cross-cultural sample of 91 societies, this paper draws on ecological theory to test if unpredictable environments will favor subsistence diversification. The general hypothesis is that societies with high climate unpredictability and resource stress would exhibit more subsistence diversity than societies in more stable climates. The authors examined four environmental and resource stress variables while controlling for temperature variance, subsistence activity, and phylogeny. Support was found for 2 of the 4 variables--chronic scarcity and environmental instability. In the discussion they suggest that more commonly observed events (e.g. annual hunger and climate unpredictability) may give people more motivation to change subsistence than rarer events (e.g. natural hazards and famine).

The present examination utilizes life history theory to explain how adolescence may have been transformed in recent times by mass education. The researchers review existing literature and also look at 186 pre-industrial societies from the Standard Cross-Cultural Sample to establish a baseline as to how adolescence was viewed and marked. The findings reveal adolescence is an essential period for biological and sociocultural development in the past as well as the present.

This study examines ecological, social, and psychological theories for men's fear of heterosexual sex in a cross-cultural sample. Findings support the hypotheses and a causal model is presented.

This paper suggests a tentative analysis of continuous female sexual receptivity based on a random sample of mammals and birds. It is suggested that humans developed continuous female sexual receptivity because humans have the unusual combination of long infant dependency, group living, and male-female bonding.

This paper investigates the relationship between marital residence and warfare. The author evaluates two theories proposing opposite causalities: one, that internal warfarecauses patrilocality; the other, that residence comes first and influences type of warfare. The author presents a new model emphasizing the role of population size in determining type of warfare, which in turn affects marital residence. However, the role of migration in determining marital residence is also considered.

This article tests some conditions that may lead to the emergence of unilineal descent, focusing on unilocality and warfare. Unilineal descent is thought to be likely in a unilocal society without a centralized political system that is experiencing intra- or inter-societal warfare. The authors also posit that a "clan" system usually develops prior to a "lineage" system.

This study examines the relationship between equality and democracy, focusing on social stratification and political participation as the primary measures. Results suggest that equality strengthens some aspects of democracy, but several other factors such as industrialization are involved in the relationship.