Understanding Food Choices

"To impose an explicit tax on food and beverage items that are eligible for red stop-sign food logos (explained in Intervention 2) as less healthy foods. Explicit tax shows pre-tax prices and a label indicating that the price includes a corresponding tax on the less healthy products.~Food and Beverages: we will impose a 20% tax on sales price of the food items"

"To provide the green circle 'healthy choice' food label to items with Nutri-Score A and B, the amber circle 'in between healthy and unhealthy choice' food label to items with Nutri-Score C, and the red stop-sign 'less healthy choice' food label to items with Nutri-Score D and E.~In the presence of food labels,~* Video: subjects will watch a video briefly explaining the food labels on the store.~* My Cart Summary: subjects will be provided a live visual indicator of the healthiness of shoppers' current basket with the recommended healthy baskets goals."

To order food items by Nutri-Score (high to low).

To provide substitutes within corresponding food categories that are better than the items that subjects chose in terms of Nutri-Score based on the similarities of price, primary ingredients, flavor, and other characteristics.