As a concept and phenomenon, ‘flex crops and commodities’ feature ‘multiple-ness’ and ‘flexible-ness’ as two distinct but intertwined dimensions. These key crops and commodities are shaped by the changing global context that is itself remoulded by the convergence of multiple crises and various responses. The greater multiple-ness of crops and commodity uses has altered the patterns of their production, circulation and consumption, as novel dimensions of their political economy. These new patterns change the power relations between landholders, agricultural labourers, crop exporters, processors and traders; in particular, they intensify market competition among producers and incentivize changes in land-tenure arrangements. Crop and commodity flexing have three main types – namely, real flexing, anticipated/speculative flexing and imagined flexing; these have many intersections and interactions. Their political-economic dynamics involve numerous factors that variously incentivize, facilitate or hinder the ‘multiple-ness' and/or ‘flexible-ness' of particular crops and commodities. These dynamics include ‘flex narratives' by corporate and state institutions to justify promotion of a flex agenda through support policies. In particular, a bioeconomy narrative envisages a future ‘value web’ developing more flexible value chains through more interdependent, interchangeable products and uses. A future research agenda should investigate questions about material bases, real-life changes, flex narratives and political mobilization.

This article surveys the current state of agroecology in Canada, giving particular attention to agroecological practices, the related social movements, and the achievements of agroecological science. In each of these realms, we find that agroecology emerges as a response to the various social and ecological problems associated with the prevailing industrial model of agricultural production that has long been promoted in the country under settler colonialism. Although the prevalence and prominence of agroecology is growing in Canada, its presence is still small and the support for its development is limited. We provide recommendations to achieve a more meaningful integration of agroecology in Canadian food policy and practice.

The neoliberal restructuring of agriculture is often predicated on the promise of a more efficient food system: other objectives, such as access to food, the environmental sustainability of production practices, the nutritional composition of diets and the rights of food producers, are largely ignored. In this paper, I document how the liberalization of trade and agricultural policies in Guatemala has undermined the latter set of objectives, thereby compromising domestic food sovereignty and global food security. In particular, I demonstrate how neoliberal policies have undermined maize agriculture and contributed to the loss of crop genetic resources in the Guatemalan ‘megacentre’ of agricultural biodiversity. In its place, small‐scale farmers have been encouraged to conform to the country's purported comparative advantage in non‐traditional export crops. The results have been widening inequality, a growing dependence upon imported grain and agrochemicals, environmental degradation and decreased food security.