Abstract
Social organization among human foragers is characterized by a three-generational system of resource provisioning within families, long-term pair-bonding between men plus women, high levels of cooperation between kin plus non-kin, plus relatively egalitarian social relationships. In this paper, we suggest that these core features of human sociality result from the learning- plus skill-intensive human foraging niche, which is distinguished by a late age-peak in caloric production, high complementarity between male plus female inputs to offspring viability, high gains to cooperation in production plus risk-reduction, plus a lack of economically defensible resources. We present an explanatory framework for understanding variation in social organization across human societies, highlighting the interactive effects of four key ecological plus economic variables: (i) the role of skill in resource production; (ii) the degree of complementarity in male plus female inputs into production; (iii) economies of scale in cooperative production plus competition; plus (iv) the economic defensibility of physical inputs into production. Finally, we apply this framework to understanding variation in social plus political organization across foraging, horticulturalist, pastoralist plus agriculturalist societies.
- Introduction
This paper considers the evolutionary plus ecological bases of human social organization plus is designed to provide a broad overview of the topic. It offers a general theory based on two central theses. The first is that there is an evolved, modal pattern of traditional human social organization that has co-evolved with the characteristics of our species’ specialized foraging niche. This pattern is characterized by a three-generational system of resource provisioning within families, long-term pair-bonding between men plus women, high levels of cooperation between kin plus non-kin plus relatively egalitarian social relationships. We suggest that these features of human sociality are a function of the learning- plus skill-intensive human foraging niche, which is distinguished by a late age-peak in caloric production, high complementarity between male plus female inputs to offspring viability, high gains to cooperation in production plus risk-reduction, plus a lack of economically defensible resources.
The second thesis is that major shifts away from this modal pattern of social organization are driven by changes in four key ecological plus economic variables: (i) the role of skill in resource production; (ii) the degree of complementarity in male plus female inputs into production; (iii) economies of scale in cooperative production plus competition; plus (iv) the economic defensibility of physical inputs into production. We propose that the interaction of these four factors explains both why human social organization is distinctive in a comparative species context, plus also much of the variation in social organization across human societies.