Pricing and promotion effects on low-fat vending snack purchases: The CHIPS study
Pricing and promotion effects on low-fat vending snack purchases: The CHIPS study
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DOI：
10.2105/ajph.91.1.112
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发表时间：
2001-01-01
影响因子：
12.7
通讯作者：
Snyder, MP
中科院分区：
文献类型：
--
作者：
French, SA;Jeffery, RW;Snyder, MP
目标.本研究探讨了价格和促销策略对从自动售货机购买低脂零食的影响。在12所中学和12个工作场所的55台自动售货机上添加了低脂零食。四个定价水平（同等价格，10%的折扣，25%的折扣，50%的折扣）和3个促销条件（无，低脂标签，低脂标签加促销标志）在拉丁方设计交叉。在为期12个月的干预中，对低脂零食的销售进行连续测量。低脂零食降价10%、25%和50%与低脂零食销售的显著增加有关;低脂零食销售的百分比分别增加了9%、39%和93%。促销标牌与低脂零食销量的增加独立但相关性较弱。每台机器的平均利润没有受到自动售货干预的影响。降低低脂零食的相对价格，对于促进成人和青少年从自动售货机购买低脂零食是有效的。
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 sign-age 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.