从社会互动到私人环境行为：消费者食物浪费的案例
From social interactions to private environmental behaviours: The case of consumer food waste
摘要：
与许多环境行为一样，消费者的食物浪费是私下发生的，不直接受到社会监督。然而，社会交往会影响个人的意见和行为。本文建立了一个基于主体的消费者之间的互动模型异质的社交，初始意见和行为相关的食物浪费和愿意考虑不同的意见，以评估社会互动如何影响私人行为。与现有的观点动力学模型相比，我们的创新之处在于，在消费者愿意接受的既定观点和实际行为之间加入了一系列"认知不一致“，然后再改变其中一种。我们校准模型使用问卷调查数据在意大利的家庭食物浪费。我们发现，不同的社会人口群体，即成年人和年轻消费者之间的有限程度的混合，足以引发变化，但更多的浪费者需要一定的思想开放。同样，如果一小部分致力于环境的消费者表现出一定程度的意见差异，并愿意在意见方面与其附近的个人妥协，那么他们就可以吸引相当大一部分人采取低废物行为。这些研究结果可以帮助设计有效的干预措施，以促进有利于环境的行为，利用有利的网络效应，同时预测负面的外部因素。
英文摘要：
Consumer food waste, like many environmental behaviours, takes place in private, and is not directly subject to social monitoring. Nevertheless, social interactions can affect private opinions and behaviours. This paper builds an agent-based model of interactions between consumers heterogeneous in their sociability, initial opinions and behaviours related to food waste and willingness to consider different opinions, in order to assess how social interactions can affect private behaviours. Compared to existing models of opinion dynamics, we innovate by including a range of ``cognitive dissonance'' between stated opinions and actual behaviours that consumers are willing to accept before changing one of the two. We calibrate the model using questionnaire data on household food waste in Italy. We find that a limited degree of mixing between different socio-demographic groups, namely adult and young consumers, is enough to trigger change, but a certain openness of mind is required from more wasteful individuals. Equally, a small group of environmentally committed consumers can attract a sizeable share of the population towards low-waste behaviours if they show a certain variability of opinions and are willing to compromise with individuals in their close neighbourhood in terms of opinions. These findings can help design effective interventions to promote pro-environmental behaviours, taking advantage of the beneficial network effects while anticipating negative externalities.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
