This paper analyses the impact of a healthy food nudge intervention on purchases made by frequent customers members of a loyalty programme of a supermarket chain in Uruguay through a randomised controlled trial (RCT).
Nudges were presented in the form of messages sent through WhatsApp to regular customers three times a week for eight weeks to customers randomly selected to the treatment group.
Messages sent each week highlighted one of the following eight subjects: cooking at home, vegetables, fruits, healthy snacks, mindful eating, legumes, fish and healthy eating.
Results show that customers who were assigned to the treatment group increase their purchases of fresh food, healthy food, fruits and vegetables by 10% on average.
When we analyse specific groups of customers, we found a higher impact in households with children under 12 years old and in households that do not eat the daily recommended number of fruits and vegetables for some categories.
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More information on this seminar can be found on VERBseminar.org. Registration is required and can also be done there.
Organisers
- Tinna Laufey Ásgeirsdóttir (University of Iceland)
- Ana Inés Balsa (Universidad de Montevideo)
- John Cawley (Cornell University)
- Hans van Kippersluis (Erasmus University Rotterdam)

