How did the HVI come about?
Before discussing in detail the conceptual framework of the HVI, we need to be very clear on how vulnerability is defined in the model. The HVI approach conceptualizes vulnerability as the presence of factors that place households at risk of becoming food insecure or malnourished. The factors also affect household ability to cope.
Vulnerability is described as having two components: “external vulnerability”, which refers to exposure to external shocks or hazards; and “internal vulnerability”, which refers to the capacity to cope with or withstand those shocks (resilience).
Household vulnerability is the extent to which HIV and AIDS and other factors affect a household’s food security status and asset endowments, and the household’s ability or inability to withstand the shock caused by these factors. All of these factors determine the livelihood strategies that people pursue, and ultimately their livelihood outcomes.
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