| Resumo: | Fruits and vegetables are one of the major sources of vitamins and mineral salts, fundamental nutrients for the convenient functioning of the human body. Supermarkets are the place and the context where most of our food purchase decisions take place. Every day, millions of Portuguese consumers decide how much Fruits and Vegetables to buy for themselves and their families. This decision is not a deterministic one and has shown to be influenced by small changes in the context of the purchase. Not only the variety but also the amount of purchase has been shown to be influenced by changes in variables such as price, placement, and point of purchase information. With these interventions, we wanted to test if a social norms message, strategically positioned in different places of an Auchan Group supermarket, would considerably increase the purchase of Fruits and Vegetables by the regular clients of that same supermarket.
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