Seattle's minimum wage ordinance did not affect supermarket food prices by food processing category.
Seattle's minimum wage ordinance did not affect supermarket food prices by food processing category.
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西雅图的最低工资条例并没有影响超市食品加工类别的食品价格。
DOI：
10.1017/s1368980017004037
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发表时间：
2018
影响因子：
3.2
通讯作者：
Otten,JenniferJ
中科院分区：
文献类型：
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作者：
Spoden,AmandaL;Buszkiewicz,JamesH;Drewnowski,Adam;Long,MarkC;Otten,JenniferJ
目的研究西雅图的最低工资条例对食品加工类别的食品价格的影响。使用华盛顿大学公共卫生营养中心的市场篮子，在受影响和未受影响的超市连锁店收集了106个项目的设计超市食品价格。2015年3月（政策颁布前1个月）、2015年5月（政策颁布后1个月）和2016年5月（政策颁布后1年）。食品被分为四个食品加工组，从最低限度到超加工。数据进行了分析，在不同的时间使用多层次，线性差异模型在商店和价格水平分层的食品加工水平。设置六个大型连锁超市位于西雅图（“干预”）受政策影响，以及金县六家相同但未受影响的连锁店（“控制”），华盛顿，美国。Subjects106食品和饮料项目。结果食品项目平均价格的最大变化是+US 0·00之间的政策颁布后1个月和政策颁布后1年之间的西雅图的“未加工或最低限度加工的食品”（P = 0·94）。平均连锁价格没有显着变化，观察到在西雅图诉金县商店在1个月或1年后的政策enforcement.ConclusionsSupermarket食品价格的食品加工水平的阶层，并没有出现差异影响由西雅图的最低工资条例的食品加工水平。这些结果表明，城市一级的最低工资政策的早期实施不会改变超市食品加工水平的食品价格。
ObjectiveTo examine the impacts of Seattle’s minimum wage ordinance on food prices by food processing category.DesignSupermarket food prices were collected for 106 items using a University of Washington Center for Public Health Nutrition market basket at affected and unaffected supermarket chain stores at three times: March 2015 (1-month pre-policy enactment), May 2015 (1-month post-policy enactment) and May 2016 (1-year post-policy enactment). Food items were categorized into four food processing groups, from minimally to ultra-processed. Data were analysed across time using a multilevel, linear difference-in-differences model at the store and price level stratified by level of food processing.SettingSix large supermarket chain stores located in Seattle (‘intervention’) affected by the policy and six same-chain but unaffected stores in King County (‘control’), Washington, USA.SubjectsOne hundred and six food and beverage items.ResultsThe largest change in average price by food item was +US 0·00 for ‘unprocessed or minimally processed foods’ in Seattle between 1-month post-policy and 1-year post-policy enactment (P = 0·94). No significant changes in averaged chain prices were observed across food processing level strata in Seattle v. King County stores at 1-month or 1-year post-policy enactment.ConclusionsSupermarket food prices do not appear to be differentially impacted by Seattle’s minimum wage ordinance by level of the food’s processing. These results suggest that the early implementation of a city-level minimum wage policy does not alter supermarket food prices by level of food processing.