The impact of price and nutrition labelling on sugary drink purchases: Results from an experimental marketplace study
The impact of price and nutrition labelling on sugary drink purchases: Results from an experimental marketplace study
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DOI：
10.1016/j.appet.2017.11.089
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发表时间：
2018-02-01
期刊：
影响因子：
5.4
通讯作者：
Hammond, David
中科院分区：
文献类型：
--
作者：
Acton, Rachel B.;Hammond, David
目的：探讨包装正面 (FOP) 营养标签和含糖饮料税对消费者饮料购买的影响。方法：共有 675 名 16 岁及以上受访者参与了一项采用 4 x 5 组内设计的实验性市场研究。参与者被随机分配到四种标签条件之一（无标签、星级、高糖符号、健康警告），并完成五项受试者内购买任务。每个任务中的饮料价格对应于“税收”条件：0％、10％、20％、30％以及与游离糖水平成比例的可变税。在每项任务中，参与者从 20 种市售饮料中进行选择；最后，随机选择五种饮料中的一种进行购买。 结果：随着价格上涨，参与者选择含糖饮料的可能性显着降低，并选择热量和游离糖含量较低的饮料（所有饮料的 p < 0.001）。尽管“高糖”标签有降低选择含糖饮料的可能性（p = 0.11）并鼓励参与者选择游离糖含量较低的饮料（p = 0.11）的趋势，但标签的总体效果并不具有统计显着性。结论：价格上涨与含糖饮料购买量减少相关。增强型 FOP 标签结果强调需要进一步研究以调查其潜在影响。该研究为税收减少含糖饮料消费提供了实证支持。 (C) 2017 Elsevier Ltd. 保留所有权利。
Objective: To examine the effect of front-of-package (FOP) nutrition labelling and sugary drink taxation on consumer beverage purchases.Methods: A total of 675 respondents aged 16 years and older participated in an experimental marketplace study using a 4 x 5 within-between group design. Participants were randomised to one of four labelling conditions (no label; star rating; high sugar symbol; health warning) and completed five within-subject purchase tasks. Beverage prices in each task corresponded to 'tax' conditions: 0%, 10%, 20%, 30% and a variable tax proportional to free sugar level. In each task, participants selected from 20 commercially available beverages; upon conclusion, one of five selections was randomly chosen for purchase.Results: As price increased, participants were significantly less likely to select a sugary drink, and selected drinks with fewer calories and less free sugar (p < 0.001 for all). The overall effect of labelling was not statistically significant, although there was a trend for the 'high sugar' label to reduce the likelihood of selecting a sugary drink (p = 0.11) and encouraging participants to select drinks with less free sugar (p = 0.11).Conclusions: Increasing price was associated with reduced sugary drink purchases. Enhanced FOP labelling results highlight the need for further research to investigate their potential impact. The study adds empirical support for taxation to reduce sugary drink consumption. (C) 2017 Elsevier Ltd. All rights reserved.