Abstract
This paper introduces G-Impact, an agent-based model that combines modelling of household consumption and belief diffusion. Household decisions integrate personal impacts (quality, cost), perceived consequences (climate change, human responsibility), and social norms. The evaluation of these different criteria relies on household beliefs, which can be exchanged during social interactions. These beliefs can be used to explain household decisions on a macro and micro scale, and thus to target information or incentive policies. The model is applied to dietary choice in France, among the omnivorous diet (INCA3), the flexitarian diet and the vegetarian diet. In the control simulation, we observe a significant increase in the proportion of flexitarians, and a slight increase in the proportion of vegetarians over 5 years. We also illustrate the need to properly inform households with the emergence of fake news.
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Notes
- 1.
We limit ourselves to these four criteria for the moment, which are applicable to all types of consumption and for which we can generally find data.
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Franceschetti, M., Herpson, C., Kant, JD. (2023). How Beliefs on Food and Climate Change Impact the Dietary Adoption? An Agent-Based Approach. In: Squazzoni, F. (eds) Advances in Social Simulation. ESSA 2022. Springer Proceedings in Complexity. Springer, Cham. https://doi.org/10.1007/978-3-031-34920-1_40
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DOI: https://doi.org/10.1007/978-3-031-34920-1_40
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