Purchases over the SNAP benefit cycle: Evidence from supermarket panel data
研究了补充营养援助计划（SNAP）福利发放对超市家庭消费的影响，发现发放当天支出、购物概率、大宗购买份额和全国品牌份额均显著增加。
Abstract This paper investigates the effect of Supplemental Nutrition Assistance Program (SNAP) benefit disbursement on intramonthly household level purchases made from a supermarket retailer. We find that spending, the likelihood of shopping, the bulk expenditure share and the national brand expenditure share increase by $2, 1.5, 2, and 0.6% points, respectively, on the day that SNAP benefits are disbursed. We also compare and contrast estimates that use variation in the indicator for benefit receipt to estimates that utilize variation in the probability of SNAP benefit receipt. We find substantial differences between the two approaches for the outcome of spending.