Using Price Promotions to Drive Children's Healthy Choices in a Developing Economy
通过与联合国儿童基金会合作在巴拿马进行三项实地实验，研究了价格折扣如何影响6-11岁儿童的健康选择，发现折扣效果取决于产品相对价格、信息设计、儿童年龄和重复促销，为发展中国家儿童健康干预提供指导。
This research examines how price discounts—a classic marketing incentive—drive children's healthy choices in the understudied context of a developing economy. The authors partnered with UNICEF to launch three field experiments in Panamá among 2,418 children to examine four pillars of price discount promotions for children: what to discount (product selection), how to discount (message design), whom to target (children's age), and whether to discount again (repetition). They uncovered four previously undocumented insights. First, price discounts alone effectively increase demand among children 6–11 years of age, reconciling conflicting findings in prior literature. Second, product selection based on relative price—a particularly crucial factor in developing regions—drives opposing postpromotion effects: ironically, marketers should not discount expensive healthy options but rather moderately priced ones. Third, different from prior literature's practice of directly communicating final prices, discount messages that require older children to derive final prices are more effective. Fourth, repetition can amplify or undermine discounts’ efficacy depending on message complexity and children's age. This research offers concrete guidelines for researchers and practitioners, uncovering both positive and negative effects of price promotions on children, and shedding light on price promotion interventions that most powerfully nudge children of different ages to act.