Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 565600
Title Modelling food security : Bridging the gap between the micro and the macro scale
Author(s) Müller, Birgit; Hoffmann, Falk; Heckelei, Thomas; Müller, Christoph; Hertel, Thomas W.; Polhill, J.G.; Wijk, Mark van; Achterbosch, Thom; Alexander, Peter; Brown, Calum; Kreuer, David; Ewert, Frank; Ge, Jiaqi; Millington, James D.A.; Seppelt, Ralf; Verburg, Peter H.; Webber, Heidi
Source Global environmental change : human and policy dimensions 63 (2020). - ISSN 0959-3780
DOI https://doi.org/10.1016/j.gloenvcha.2020.102085
Department(s) International Policy
Publication type Refereed Article in a scientific journal
Publication year 2020
Keyword(s) Agent-based models - Crop models - Economic equilibrium models - Food security - Land use - Model integration - Multi-scale interactions - Social-ecological feedbacks
Abstract

Achieving food and nutrition security for all in a changing and globalized world remains a critical challenge of utmost importance. The development of solutions benefits from insights derived from modelling and simulating the complex interactions of the agri-food system, which range from global to household scales and transcend disciplinary boundaries. A wide range of models based on various methodologies (from food trade equilibrium to agent-based) seek to integrate direct and indirect drivers of change in land use, environment and socio-economic conditions at different scales. However, modelling such interaction poses fundamental challenges, especially for representing non-linear dynamics and adaptive behaviours. We identify key pieces of the fragmented landscape of food security modelling, and organize achievements and gaps into different contextual domains of food security (production, trade, and consumption) at different spatial scales. Building on in-depth reflection on three core issues of food security – volatility, technology, and transformation – we identify methodological challenges and promising strategies for advancement. We emphasize particular requirements related to the multifaceted and multiscale nature of food security. They include the explicit representation of transient dynamics to allow for path dependency and irreversible consequences, and of household heterogeneity to incorporate inequality issues. To illustrate ways forward we provide good practice examples using meta-modelling techniques, non-equilibrium approaches and behavioural-based modelling endeavours. We argue that further integration of different model types is required to better account for both multi-level agency and cross-scale feedbacks within the food system.

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