This article examines the different social risk-management strategies (SRMS) used by pastoralists to minimize their exposure to risks that may affect their livelihood. The authors identify a new type of SRMS, noninstitutionalized SRMS, to the two existing types, exchange networks and patron-client relations. A qualitative comparative analysis (QCA) is used to identify factors which explain the variation in SRMS: livelihood diversification, economic differentiation, political economy, risk exposure, and key economic animal.

Researchers investigated the variation of land tenure systems across forager societies using the economic defensibility model. The study attempted to explain the variation in tenure systems across 30 hunter-gatherer societies. Using data on defense and sharing of resources among groups, and indicators of resource density, resource predictability, and competition for resources, the researchers were unable to explain the variation. This study highlights the vast range of diversity and complexity of foragers subsistence strategies, and proposes that it may be more telling to conceptualize tenure systems among hunter-gatherer societies as assemblages of multiple property regimes. While there was no overall evidence that environmental variables of resource density and predictability explain variation in tenure systems, researchers did find that increasing population density, and greater competition for resources leads to greater territoriality.