Pricing and promotion effects on low-fat vending snack purchases: the CHIPS Study.

Published

Journal Article

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.

Full Text

Duke Authors

Cited Authors

  • French, SA; Jeffery, RW; Story, M; Breitlow, KK; Baxter, JS; Hannan, P; Snyder, MP

Published Date

  • January 2001

Published In

Volume / Issue

  • 91 / 1

Start / End Page

  • 112 - 117

PubMed ID

  • 11189801

Pubmed Central ID

  • 11189801

International Standard Serial Number (ISSN)

  • 0090-0036

Digital Object Identifier (DOI)

  • 10.2105/ajph.91.1.112

Language

  • eng

Conference Location

  • United States