“…In addition, food systems can be understood as consisting of sub-systems, including a political sub-system (institutions and laws, both hard and soft, that affect food production), an information and services sub-system (access to information, logistical services, research, extension), an operational sub-system (value chain functioning and activities and a sub-system of natural resources (soils, water, and energy) (Colonna, Fournie, and Taizard 2013;Esnouf, Russel, and Bricas 2013;Roberto et al 2014).…”