Nudging Nutrition: Evaluating the Impact of Monetary Incentives and Environmental Cues on Food Choices
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 221
- 试验地点
- 1
- 主要终点
- Change in expenditures on nutritious and less nutritious foods
研究概览
简要总结
The investigators hypothesize that monetary incentives and messaging, such as making nutritious foods relatively less expensive than less nutritious foods and framing the price difference in a positive or negative way, will influence purchasing behavior of households.
详细描述
In this study, 239 loyalty card shoppers were recruited at Hannaford grocery stores to participate in a study in which a 10% price difference between nutritious and less nutritious foods was introduced. and then framed as a subsidy, tax, or a combination of a tax and subsidy. To determine whether or not the framing of the price difference influenced purchasing behavior, the difference was framed as a subsidy on nutritious foods, a tax on less nutritious foods, and a combination of a tax and subsidy on less nutritious and nutritious foods, respectively. The purpose of this study was to examine the general impact of this price difference on purchases of nutritious and less nutritious foods, and whether or not the framing of the price difference had a differential effect on behavior.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Factorial
- 盲法
- Double (Participant, Investigator)
入排标准
- 年龄范围
- 18 Years 至 70 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Loyalty card shoppers at Hannaford grocery stores
排除标准
- •No children in household
- •Less than 75% of food purchases made at Hannaford grocery stores
结局指标
主要结局
Change in expenditures on nutritious and less nutritious foods
时间窗: 8 months
Item level transaction data were collected for each participant between mid-July 2010 and mid-March 2011. These data included expenditures on all items purchased in the store. Average weekly expenditures were generated and reported in Aug 2011.
次要结局
- Change in quantities purchased of nutritious and less nutritious foods(8 months)
- Change in expenditures on nutritious and less nutritious foods in specific food categories.(8 months)