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This chapter suggests a further step in the development of a representation capable to grasp food systems' complexity. Food systems are neither fully consistent structures resulting from an overall planning, nor stable along time. The transition towards more sustainable and less vulnerable food systems capable to pursue food and nutrition security (FNS) goals in a changing environment needs organizing the diversity of food models that coexist within a territory. These models are based on different conventions and configurations (Fournier & Touzard, 2014; Reardon & Timmer, 2012) which involve different actors and evolve over time according to their changing needs, objectives and capabilities. Understanding this picture requires a shift from a systemic to an ‘assemblage’ approach (DeLanda, 2006), where actors engage themselves in different configurations, on the base of their different agendas. The assemblage approach also shows that linked components retain their autonomy, as attachment to one assemblage normally does not imply total involvement in it. As a consequence, this approach provides space to analyze actors making part of more than one assemblage. Four levels at which assemblage processes can occur are identified in the chapter: assemblages around a firm, a function, a town or a region. It is within these assemblages that the activity of small players and their contribution to sustainable FNS can be effectively identified and possibly promoted.

Among the food system's outcomes, food and nutrition security remains a key concern also in developed countries. This chapter analyzes food and nutrition security issues, unpacking the four dimensions in which the concept is articulated: availability, access, utilization and stability. Then the concept is explored, beyond the official definitions, through a description of the various frames that shape the public debate on food and nutrition security. These frames are: the classical productivist view emerged in the early post-war period; the neoproductivism, promoting a sustainable intensification aimed at producing more food while reducing negative environmental impacts, the entitlement approach based on Sen's reflections on people's capability to access food; the food sovereignty (Via Campesina, 1996) which regards food insecurity as an outcome of unequal power relations: the livelihood approach focused on the assets that determine the living gained by the individual or household; the right to food (De Schutter, 2014) based on the status of each individual as a rights-holder; the similar but less individualistic food democracy and food citizenship perspective which focusses on the collective dimension of those rights; the community food security, again close to the food citizenship but with stronger emphasis on communities and localization. Finally, the main contributions given by small farms to food and nutrition security are described, as identified on the base of the SALSA project outcomes.

This chapter opens the second part of the Volume, focusing on the small farms' role and dynamics within the evolving food system. Assessing small farmers' actual and potential contribution to the change towards a sustainable food and nutrition security requires a deep understanding of their strategic decision-making processes. These processes take place in a context highly conditioned by internal and external conditions, including the complex relations between farm and household, which are mapped and described. Building on an adaptation of Porter's model (Porter, 1990), the chapter investigates how farmers, given those conditions, define their strategies (in particular their innovation strategies) aimed at economic and financial sustainability through a multidisciplinary analysis of scientific literature. Internal conditions are identified in the light of the Agricultural Household Model (Singh & Subramanian, 1986) which emphasizes how family farming strategies aim at combining business-related objectives, and family welfare. Then, a comprehensive set of external conditions is identified and then grouped within eight categories: ‘Factors’, ‘Demand’, ‘Finance and Risk’, ‘Regulation and Policy’, ‘Technological’, ‘Ecological’, ‘Socio-institutional’ and ‘Socio-demographic’. Similarly, six types of strategies are identified: ‘Agro-industrial competitiveness’, ‘Blurring farm borders’, ‘Rural development’, ‘Risk management’, ‘Political support’ and ‘Coping with farming decline’.

This chapter, which concludes the volume, develops what was argued in Chapter 7 in light of the need to identify policies capable to support sustainable, resilient and food-secure systems where the role of farmers, and small farmers in particular, as active drivers of change is fully recognized. The chapter presents a discussion on innovation policy guidelines consistent with the illustrated frameworks, and on the best governance arrangements, to support system change vis-à-vis pressures that are both internal and external to the sociotechnical networks (Smith, Stirling, & Berkhout, 2005). Attention is given to the definition of adequate measures to support transition towards a sustainable, resilient and food-secure system with a valorization of small farms' role. Finally, indications on how to assess the effectiveness and the efficiency of the public policies and supports are provided, highlighting the principles to be followed for the design of an effective and consistent monitoring and evaluation system. The discussion hinges on three questions, to be answered in the aim to find the most governance arrangements best suited to promote innovation processes: Who to involve in decision-making? What are the appropriate knowledge infrastructures? How to assess the effectiveness and the efficiency of the public policies and supports?

This chapter aims at building a conceptual framework that could inspire innovation policies able to take into account the emerging agricultural and rural agenda, based on a comprehensive conceptualization of the innovation system. The systems of innovation and the broader processes of knowledge creation (and co-creation), transfer and adoption represent a crucial set of conditions influencing family farms' trajectories in response to the various opportunities and drivers of change, as well as their capability to contribute to sustainable food systems and FNS. This chapter analyzes the concept of innovation in relation to transition towards new configurations with a non-linear and multidimensional vision based on actors assembling themselves in a geographical space where resources and information are used to generate change. This leads to consider knowledge as an asset co-generated by the interaction of different actors within agricultural knowledge and innovation systems (AKIS) (Leeuwis & van den Ban, 2004). Agriculture and countryside are experiencing deep transformations towards concentration and globalization on one side and post-productivism and rural development on the other (Van der Ploeg et al., 2000). These processes of change require innovation policies aimed at pursuing ‘second-order’ innovation based on new goals and new rules. From a transition perspective (Geels, 2004) these radical innovations can develop within niches to a certain extent protected from mainstream market forces, to be then progressively embodied into higher structuration levels (the ‘regimes’).

The Introduction describes the rationale and the aim of the book, together with an overall view on its content with a brief illustration of the content of each of the following chapters. The various chapters provide a wide-ranging multidisciplinary exploration of approaches and models capable to account for small farm's role in the food system and in its outcomes, with specific attention to food and nutrition security and system resilience, as well as to suggest policies capable to influence the food systems' development trajectories towards sustainable configurations.

To analyze more deeply and in a systemic perspective food system outcomes, and the contribution that small farming can give to the achievement of those outcomes, a detailed analysis of food systems is required, which highlights its components, activities and dynamics. Thus, this chapter deepens the analysis of the food system. We first reflect on the complexity of the concept of food system, discussing the abundance of different conceptualizations proposed in the scientific and political debate on the base of different disciplines and perspectives. Then, a comprehensive representation is shown, which is then unpacked. The food system actors, assets and functions are explored, with an eye on power relations among actors and on the main drivers of change. Governance (that also includes actors external to the food systems) is called ‘reflexive’, as long as it characterizes a system that is able to reflect upon the conditions and the forms of its own functioning, to detect and analyze threats and to change accordingly, with the involvement of actors external to the food systems. This analysis, which represents the focus of this section, provides the base for the description of the food system vulnerability developed in Chapter 4. Drivers of change and governance emerge as key categories to consider.

This chapter focusses 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.

This chapter provides a first systemic analysis of the environment in which small farms operate, hinging on the concept of ‘food system’. Food systems are not detached from the territory: an effective conceptualization must take into account the geographical dimension in which actors operate, originating material and immaterial flows. Thus food systems can be represented according to their functional elements, but also conceptualized and represented in their spatial dimension. This chapter provides a conceptualization of territorialized food systems, seen as a set of relations between actors located in a regional geographic space and coordinated by territorial governance (Rastoin, 2015). In the analysis of a food system in the context of a specific territory, geographical elements like distances, spatial distribution and physical and administrative borders become key factors that influence the systems’ capability to provide sustainable food and nutrition security and to achieve the other socially expected outcomes. Having explored the conceptualization of food systems as systems of actors ad flows in a given space, the chapter ends with a representation of small farms' interaction with the system (taken from a report by the High Level Panel of Experts on Food Security and Nutrition of the Committee on World Food Security – HLPE), where the specific types of flows they activate are highlighted (HLPE, 2013).