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AbstractThis paper contributes to the urban food security literature by presenting the results of 600 household surveys conducted in Ghana and Cameroon. In this, we show how dietary diversity, which is a well‐developed proxy for food security, is similar in both countries but varies significantly based on household demographic characteristics. In particular, smaller, better‐off and more educated households were likely to have higher levels of dietary diversity and were less likely to respond to rising food prices by reducing diets or shifting buying patterns. In addition, households that live in 'primary' cities that are large and well integrated into global markets also enjoyed higher levels of dietary diversity. This research contributes to debates around whether or not food security is enhanced by being integrated into global markets or whether it is better served through national or regional food systems. The evidence uncovered here suggests that for well‐off households, integration into global markets is probably preferable as such households enjoy more diverse diets. Copyright © 2017 John Wiley & Sons, Ltd.

AbstractDigital technologies are being developed and adopted across the agro‐food system, from farm to fork. Within decision‐making spaces, however, little attention is being paid to political factors arising from such technological developments. This review draws from critical social sciences to examine emerging technologies and big data systems in agriculture and assesses some key issues arising in the field. We begin with an introduction and review of the so‐called 'digital revolution' and then briefly outline how political economy is effective for understanding major challenges for governing technologies and data systems in agriculture. These challenges include: (1) data ownership and control, (2) the production of technologies and data development, and (3) data security. We then use literature and examples to consider the extent to which the political and economic landscape can be shifted to support greater equity in agriculture, while reflecting on structural challenges and limits. In doing so, we emphasise that while there are significant systemic tensions between digital ag‐tech development and agroecological approaches, we do not see them as mutually exclusive per se. This article intends to provide decision‐makers, practitioners and scholars from a wide range of disciplines with a timely assessment of agro‐food digitalisation that attends to political economic factors. In doing so, this article contributes to policy and decision‐making discussions, which, from our perspective, continue to be rather technocentric in nature while paying little attention to how digital technologies can support agroecological systems specifically.

It is well-recognised that to achieve long-term sustainable and resilient land management we need to understand the coupled dynamics of social and ecological systems. Land use change scenarios will often aim to understand (i) the behaviours of land management, influenced by direct and indirect drivers, (ii) the resulting changes in land use and (iii) the environmental implications of these changes. While the literature in this field is extensive, approaches to parameterise coupled systems through integration of empirical social science based models and ecology based models still need further development. We propose an approach to land use dynamics modelling based on the integration of behavioural models derived from choice experiments and spatially explicit systems dynamics modelling. This involves the specification of a choice model to parameterise land use behaviour and the integration with a spatial habitat succession model. We test this approach in an upland socio-ecological system in the United Kingdom. We conduct a choice experiment with land managers in the Peak District National Park. The elicited preferences form the basis for a behavioural model, which is integrated with a habitat succession model to predict the landscape level vegetation impacts. The integrated model allows us to create projections of how land use may change in the future under different environmental and policy scenarios, and the impact this may have on landscape vegetation patterns. We illustrate this by showing future projection of landscape changes related to hypothetical changes to EU level agricultural management incentives. The advantages of this approach are (i) the approach takes into account potential environmental and management feedbacks, an aspect often ignored in choice modelling, (ii) the behavioural rules are revealed from actual and hypothetical choice data, which allow the research to test the empirical evidence for various determinants of choice, (iii) the behavioural choice models generate probabilities of ...