Abstract
This chapter focuses on food systems' vulnerability. In a rapidly and unpredictably changing world, vulnerability of farming and food systems becomes a key issue. The conceptual bases for food vulnerability analysis and food vulnerability assessment are discussed in a systemic perspective with an eye to the transition approach (Geels, 2004) as a perspective capable to analyze how novelties can develop and influence the system capability to fulfil societal functions, and food and nutrition security in particular. A framework for assessing people's food vulnerability is presented together with a simple vulnerability model based on the three dimensions of exposure (the degree to which a system is likely to experience environmental or sociopolitical stress), sensitivity (the degree to which a system is modified or affected by perturbations) and adaptive capacity (the ability to evolve in order to accommodate environmental hazards or change) (Adger, 2006). Then, other sections are dedicated to discuss the general questions that should be answered by a vulnerability assessment exercise, and the specific challenges emerging when the assessment concerns a food system. These elements are then used in the Annex to this chapter as a base for the development of a detailed method based on seven distinct steps for conducting participatory assessments of the vulnerability of food systems.