Charles H Dyson School of Applied Economics and Management, Cornell University, Ithaca, New York.
Obesity (Silver Spring). 2014 Jan;22(1):24-6. doi: 10.1002/oby.20591. Epub 2013 Sep 23.
Debit card payment systems are known to induce more frivolous purchases in adults, but their impact on children is unknown.
Using a national survey of 2,314 public school students in the United States, food purchases in schools with debit-only systems to those in schools with both debit and cash options are compared.
Students in debit and cash schools purchase more fresh fruit and vegetables and fewer total calories.
Payment systems with cash options have a lower purchase incidence of less healthy foods and higher purchase incidence of more healthy foods.
众所周知，借记卡支付系统会诱导成年人进行更多的冲动性购买，但它们对儿童的影响尚不清楚。
本研究使用了一项针对美国 2314 名公立学校学生的全国性调查，比较了仅使用借记卡系统的学校和同时提供借记卡和现金选择的学校的食品购买情况。
使用借记卡和现金的学校的学生购买的新鲜水果和蔬菜更多，总卡路里摄入更少。
提供现金选择的支付系统购买不健康食品的发生率较低，购买健康食品的发生率较高。
