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· 2019
Transporting fresh tomatoes from farmer to retailer in Nigeria in plastic crates instead of raffia baskets can substantially decrease post-harvest losses both in quantity and in quality. We apply the Value Chain Laboratory (VC-Lab) method to analyse the importance for the long-term acceptance of these plastic crates of trust in other chain actors, risk attitudes and social norms of chain actors, a price bonus for transporting tomatoes in crates, the costs and lifespan of crates, and who should invest in crates. The price a farmer receives from a wholesaler, risk attitudes of the actors, and social norms were the most important drivers for the long-term use of crates.
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MagnetGrid is a modular economic land-use model adding spatial detail to macroeconomic foresight. It projects and visualises future agricultural land-use change patterns that may emerge from a combination of climatic and socio-economic developments, quantifying the impacts resulting from these trends and evaluating their potential trade-offs across multiple dimensions. Being spatially explicit, results from MagnetGrid can be visualised for a non-technical audience through maps showing the changes in land use at global, regional, country and local levels.
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· 2019
The population of the world is becoming increasingly urbanised due to a combination of natural population growth and rural–urban migration. This will pose major challenges to feed the future population and meet the Sustainable Development Goals. Meeting these complex challenges requires an integrated approach. The transition support system (TSS) approach integrates decision support tools and stakeholder analyses for these complex issues. This study has focused attention on the application of decision support tools of the TSS approach that visualises the urgency of future food security as a proof of concept. To this end, the future food security of the city of Accra, the capital of Ghana, has been taken as a case study. The use of Global-Detector and its maps illustrated a quick way to downscale data and projections from MAGNET (Modular Applied GeNeral Equilibrium Tool) and perform spatial analyses without the burden of acquiring additional data. Downscaling of macroeconomic results of future projections provides insights into future urban food security. Giventhese insights, stakeholders might urge policy or interventions. The results of the exercise are largely determined by the availability of data and maps; in particular, the more detailed information is available, the more accurate the results of our exercise will be.
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