This paper reports the design and baseline results of a rewards-based incentive program–the Frequent Buyer Rewards Study–in a large full-service supermarket located in a predominately minority community in Philadelphia, Penn. The Frequent Buyer Rewards Study is a four-phase randomized trial designed to increase the purchase of fruits and vegetables in lower-income households. Baseline data indicates that households purchased only limited amounts and selection of fresh and frozen produce. Households purchased an average of 3.7 servings of fresh vegetables; less than 1 serving of frozen vegetables; 1.9 servings of fresh fruits; and little to no frozen fruit purchases per week.
Using Rewards-Based Incentives to Increase Purchase of Fruit and Vegetables in Lower-Income Households: Design and Start‑Up of a Randomized Trial
This paper examines the impact of a rewards-based incentive program on fruits and vegetable purchases in a supermarket located in a predominately minority community in Philadelphia, Pa. Researchers conducted a four-phase prospective cohort study with randomized intervention and wait-listed control groups. Households in the intervention were provided a 50 percent … More
Incentives that reward healthier food purchases and that provide reinforcement to the consumer have not been systematically and rigorously studied, particularly among lower-income populations. The aim of this study is to determine whether an incentive-based system increases healthier food purchasing practices by lower-income families. The study is a randomized controlled … More
Policymakers worldwide are considering requiring warnings for sugary drinks. A growing number of experimental studies have examined sugary drink warnings’ impacts, but no research to our knowledge has synthesized this literature. To inform ongoing policy debates, this study aimed to identify the effects of sugary drink warnings compared with control … More