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食品选择的动态源于价格意识和感知到的收入充足度:使用1年的忠诚卡数据进行横截面研究
Mikael Fogelholm1, Henna Vepsäläinen1, Jelena Meinilä1
1Department of Food and Nutrition, University of Helsinki, Helsinki, Finland.
The American journal of clinical nutrition
|March 8, 2024
概括
低收入家庭购买更便宜,更不健康的食物,显示出强烈的价格意识. 了解食品定价是通过包装标签等策略促进更健康,更可持续的饮食的关键.
科学领域:
- 营养科学 营养科学
- 消费者行为 消费者行为
- 公共卫生 公共卫生
背景情况:
- 健康食品的高成本导致低收入家庭的不健康饮食.
- 将食品购买数据与营养信息联系起来是复杂的.
- 忠诚卡数据为研究食品购买,价格和营养提供了一种新的方法.
研究的目的:
- 检查感知收入充足度 (PIA) 与购买食品的价格和数量之间的关联.
- 根据财务感知,分析17个主要食品组的购买模式.
主要方法:
- 利用来自芬兰一家主要杂货连锁店 (28,783名参与者) 的1年忠诚卡数据.
- 通过问卷评估感知收入充足度 (PIA).
- 计算食品价格 (每公斤/MJ) 和购买量 (%支出/能源).
- 采用了统计分析,包括Jonckheere-Terpstra测试和反向概率权重用于混调整.
主要成果:
- 较低的PIA参与者购买了每公斤和每兆焦耳更便宜的食物.
- 较低PIA的个人更喜欢能量密集,更便宜的不健康食品组.
- 尽管单位价格较低,但低PIA家庭在零食和糖果等不健康物品上花费了预算的更高比例.
结论:
- 较低的感知收入充足度与食品选择中更高的价格敏感性相关.
- 考虑替代食品组的定价对于促进更健康和可持续的饮食至关重要.
- 包装标签可以引导消费者在食品类别内选择更健康,更便宜的选择.
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