The evolution of thinking about food security.

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What drives food insecurity in southern Africa? a meta-analysis of household economy studies (2005, background): “The debate over the causes of inconsistent food security between regions and communities has fuelled highly contested viewpoints between the academic disciplines and in development thinking over the past few decades, giving rise to a proliferation of demographic, economic, and political emphases acr”
An assessment of the extent and causes of food insecurity in northern Ghana using a livelihood vulnerability framework (2006, background): “tivity provides a strong framework for the analysis of food insecurity over time (Maxwell, 2001).”
World Food Security: A History since 1945 (2007, background): “Another view is that the evolution of thinking about food security reflects three shifts in the definitions of the term from: the global and the national to the household and the individual; a ‘food first’ to a livelihood perspective; and objective indicators to subjective perceptions (Maxwell, 2001”
Conceptualizing food systems for global environmental change research (2008, background): “While the impacts of natural hazards or stresses such as droughts may trigger a crisis, long term economic factors such as market failures and poverty contribute, along with political instability and institutional weakness, and conflicts play a large role (Devereux and Maxwell, 2001).”