“…Following this line of reasoning, we here define risk avoidance in an unpredictable environment as the adoption of strategies that reduce the possibility of being exposed to risk, i.e., to reduce the probability of encountering hazards, and to buffer the impact of a hazard when it occurs. Halstead and O'Shea (1989) argue that societies in general employ a wide range of strategies or 'buffering mechanisms' to counteract scarcities, ranging from myths to alternative modes of subsistence (see also Bollig and Göbel 1997). Following Halstead and O'Shea (1989), strategies for countering risk can be grouped into four major categories: (1) diversification, from the keeping of multiple livestock species (e.g., Khazanov 1994;White 1997) to investing in non-pastoral activities (e.g., Bayer and Watersbayer 1990;Berzborn 2007;Lesorogol 2008;Mearns 2004;Sperling 1987;Thornton et al 2007); (2) exchange, livestock exchange networks such as stockfriendship (e.g., Bollig 2006:287, Göbel 1997White 1997); (3) mobility, taking advantage of spatial and temporal heterogeneity in available forage (e.g., Bollig and Göbel 1997;McCabe 1997;Thompson et al 2008;; and (4) storage, large herd size (Bollig and Göbel 1997;Hjort 1981;Ingold 1986; see e.g., Colson 1979 for other categories).…”