Struben Jeroen, Chan Derek, Talukder Byomkesh, Dubé Laurette
Emlyon Business School, Lyon, France.
International Livestock Research Institute (ILRI), Dakar, Senegal.
Nat Commun. 2025 May 7;16(1):4246. doi: 10.1038/s41467-025-59392-z.
Achieving food system transformation requires a deep understanding of the market mechanisms that underpin both the social benefits and the externalities of modern development. We examine how market dynamics affect the production and consumption of healthy and equitable diets in North America. Using causal loop diagramming, we show how three market feedback processes (industry capabilities, consumer category considerations, and systems and institutions) both constrain and enable food system transformation. Through behavioral-dynamic computational modeling, we demonstrate the ineffectiveness of isolated social or commercial interventions to achieve equitable access to nutritious foods across populations of varying socioeconomic statuses. Rather, self-sustaining transformations at scale require convergent innovations that bridge individual and collective action across typically siloed sectors, to achieve alignment between commercial, social, and environmental goals and activities. We discuss how this simulation-based analytical framework can inform policy for food system transformation, whether at the local, national, or global level.
实现粮食系统转型需要深入了解支撑现代发展的社会效益和外部性的市场机制。我们研究了市场动态如何影响北美的健康和公平饮食的生产与消费。通过因果循环图,我们展示了三个市场反馈过程(行业能力、消费者类别考量以及系统和机构)如何既制约又推动粮食系统转型。通过行为动态计算建模,我们证明了孤立的社会或商业干预措施在实现不同社会经济地位人群公平获取营养食品方面的无效性。相反,大规模的自我维持转型需要融合创新,跨越通常相互孤立的部门将个人行动与集体行动联系起来,以实现商业、社会和环境目标及活动之间的协调一致。我们讨论了这个基于模拟的分析框架如何为地方、国家或全球层面的粮食系统转型政策提供参考。