| Titre : | Pricing and promotion effects on low-fat vending snack purchases : The CHIPS Study. (2001) |
| Auteurs : | Simone-A FRENCH ; Judith-S BAXTER ; Kyle-K BREITLOW ; Peter HANNAN ; Robert-W JEFFERY ; Mpatricia SNYDER ; Mary STORY ; Division of Epidemiology. School of Public Health. University of Minnesota. Minneapolis. USA |
| Type de document : | Article |
| Dans : | American journal of public health (vol. 91, n° 1, 2001) |
| Pagination : | 112-117 |
| Langues: | Anglais |
| Mots-clés : | Vente ; Prix ; Adolescent ; Homme ; Adulte ; Comportement alimentaire ; Etats Unis ; Amérique ; Milieu professionnel ; Amérique du Nord |
| Résumé : | [BDSP. Notice produite par INIST LVk7qR0x. Diffusion soumise à autorisation]. Objectives. This study examined the effects of pricing and promotion strategies on purchases of low-fat snacks from vending machines. Methods. Low-fat snacks were added to 55 vending machines in a convenience sample of 12 secondary schools and 12 worksites. Four pricing levels (equal price, 10% reduction, 25% reduction, 50% reduction) and 3 promotional conditions (none, low-fat label, low-fat label plus promotional sign) were crossed in a Latin square design. Sales of low-fat vending snacks were measured continuously for the 12-month intervention. Results. Price reductions of 10%, 25%, and 50% on low-fat snacks were associated with significant increases in low-fat snack sales ; percentages of low-fat snack sales increased by 9%, 39%, and 93%, respectively. Promotional signage was independently but weakly associated with increases in low-fat snack sales. Average profits per machine were not affected by the vending interventions. Conclusions. Reducing relative prices on low-fat snacks was effective in promoting lower-fat snack purchases from vending machines in both adult and adolescent populations. |
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