This article presents the results of economic behavior experiments conducted on members of 15 small scale societies. Although three different economic experiments were conducted, findings focus on the results of the "Ultimatum Game." The authors found that no society adhered to behavior predicted by the "selfishness axiom" which suggests that individuals will behave in a way that maximizes their own gain. Authors also discuss possible predictors of behavioral variation within and between groups.

This article presents the results of economic behavior experiments conducted on members of 15 small scale societies. Although three different economic experiments were conducted, findings focus on the results of the "Ultimatum Game." The authors found that no society adhered to behavior predicted by the "selfishness axiom" which suggests that individuals will behave in a way that maximizes their own gain. Authors also discuss possible predictors of behavioral variation within and between groups.

This article explores how the evolutionary psychological perspective explains cultural universals and variations. This framework is then used to test whether wealth affects parents' preferences of sons or daughters on an individual and national level. Results suggest that wealthier individuals and wealthier nations prefer sons to daughters.

This study analyzes the relationship between game complexity and sociocultural complexity. Significant relationships were found between several aspects of complexity and game complexity.

This study analyzes the relationship between game complexity and sociocultural complexity. Significant relationships were found between several aspects of complexity and game complexity.

This study analyzes the relationship between game complexity and sociocultural complexity. Significant relationships were found between several aspects of complexity and game complexity.

This study analyzes the relationship between game complexity and sociocultural complexity. Significant relationships were found between several aspects of complexity and game complexity.

This study analyzes the relationship between game complexity and sociocultural complexity. Significant relationships were found between several aspects of complexity and game complexity.

This study analyzes the relationship between game complexity and sociocultural complexity. Significant relationships were found between several aspects of complexity and game complexity.

Previous studies have proposed a model of sexual selection that dictates that along with female and male choice, parental choice constitutes a significant sexual selection force in our species. This article aims at examining whether this model can also account for the mating patterns typical of agricultural and pastoral societies. The hypotheses are supported by the results presented.