This article tests for universal patterns in cultural evolution by Guttman scaling on two different worldwide samples of archaeological traditions and on well-known archaeological sequences. The evidence is generally consistent with universal evolutionary sequences.

Using the ethnographic record, this study develops and tests the idea that community permeability may be used as an archaeological predictor of warfare. With the exception of pastoral societies, community permeability predicts warfare.

This paper discusses the relationship between floor area and settlement population.

An extension of the author's 1993 study, An Archaeological Correlate of War, this study examines the relationship between community permeability and war in the ethnographic record using Naroll's study on household and population as a model with the aim of making inferences to the archaeological record.

This article stresses the use of multivariate analysis to study the emergence of states. The authors first discuss how social inequality, population density, and trade affect state development. Next, they turn to a time series regression to formally examine social stratification, urbanization, technological specialization as predictors of political integration. Finally, economic vulnerability and scalar stress are considered as possible underlying factors in the emergence of states.

The author analyzes conditions that might favor social resilience during the Late Antique Little Ice Age (ca. 536-556 CE). The assumption is made that climatic conditions in the Northern Hemisphere during this period of time are very similar to those that would occur during a nuclear winter. These conditions include a drop in temperature and decreased solar radiation from volcanic eruptions. Measures for social resilience come from multiple variables for social change, which are tested against measures for type of political engagement. It is argued that broad political participation is correlated with resilience.

This study employs optimal scaling analysis to examine change in subsistence economy in a cross-cultural sample of 73 societies. Findings are discussed in addition to methodological considerations for sampling.

This study replicates John L. Fischer's (1961) cross-cultural analysis to demonstrate the correlation between art styles and social hierarchy and postmarital residence. The author suggests that archaeological ceramics might be used to predict social characteristics of prehistoric societies.

Using HRAF's ethnographic reports from 11 immigrant groups to North America (1959-1989), the author asks: what social structural factors account for these patterns of language loss and retention? While focusing on the second and third generations, this study assesses the impact of residence, religion, school, festivals, homeland, marriage, and labor on language retention. The author suggests that residential closeness and the continued practice of religious rituals from the country of origin are the main factors influencing mother tongue maintenance into the third generation, while participation in community festivals is a marginal predictor.

This study examines the change in political integration over time. Results show that political integration has increased during the past 12,000 years following a quadratic curve. Authors suggest that, following this quadratic model, a world state is likely to appear by AD 5000.