Ding Yulian, Yang Yue, Sun Yangyang, Chen Kevin, Hu Lianfeng
Institute of Western China Economic Research, Southwestern University of Finance and Economics, Chengdu, China.
Zhejiang Province Key Think Tank: Institute of Ecological Civilization, Zhejiang A&F University, Hangzhou, China.
PLoS One. 2024 Dec 26;19(12):e0316189. doi: 10.1371/journal.pone.0316189. eCollection 2024.
Effectively regulating the excessive consumption of sugar-sweetened beverages (SSBs) has been an important task for public health authorities around the world. The rapid increase in SSB consumption in China necessitates robust regulations. This study employed a choice experiment to simulate the market scenario in which a text warning label was presented on SSBs. We draw a sample of 1200 participants from five major cities across China to analyze the warning label's effectiveness in reducing urban consumers' purchases of SSBs, with a particular emphasis on how an individual's habit strength affects their reaction to the warning label. Our analysis unveiled varying levels of habit strength among respondents: 35.33% showed weak habits, 56.25% displayed moderate habits, and 8.42% demonstrated strong habits. The random parameters logit model results showed a significant overall decrease in SSB purchases when a warning label was present, indicated by a significant negative coefficient associated with the label. However, when examining the impact of warning labels across different habit strengths, a significant effect was observed only in the moderate habit group. Furthermore, within this group, the warning label was more effective for those with correct health knowledge and who were not overweight or obese.
有效管控含糖饮料（SSB）的过度消费一直是全球公共卫生当局的一项重要任务。中国含糖饮料消费量的迅速增长使得强有力的监管成为必要。本研究采用了一项选择实验来模拟在含糖饮料上呈现文本警告标签的市场情景。我们从中国五个主要城市抽取了1200名参与者作为样本，以分析警告标签在减少城市消费者购买含糖饮料方面的有效性，特别关注个人的习惯强度如何影响他们对警告标签的反应。我们的分析揭示了受访者中不同程度的习惯强度：35.33%表现出弱习惯，56.25%表现出中等习惯，8.42%表现出强习惯。随机参数logit模型结果显示，当有警告标签时，含糖饮料的购买量总体上显著下降，这由与该标签相关的显著负系数表明。然而，在考察警告标签对不同习惯强度的影响时，仅在中等习惯组中观察到显著效果。此外，在该组中，警告标签对那些具备正确健康知识且体重正常的人更有效。
