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英文文献：The Size vs. Health Trade-off in Lower-Income Households’ Food Choices: The Case of Fluid Milk-低收入家庭在食物选择上的大小与健康取舍:液态牛奶的例子
英文文献作者：Bonanno, Alessandro,Chenarides, Lauren,Volpe, Richard III
英文文献摘要：
The debate around the healthfulness of food choices for low-income households is still a relevant point of contention for policymakers as they aim to provide tools to incentivize consumption of healthier foods in different ways. Using fluid milk as a case study, and one year of household- level weekly milk purchases data in the Northeastern U.S., we assess the demand for milk of households with income levels above and below poverty, across fat content and packaging size. We find estimated own-price elasticities differing little across samples of households: even in cases where differences emerge, the estimated values, along with price differences experienced by purchasing households do not seem to justify the different purchasing patterns of the two household groups. Household characteristics however show differences in impacting the demand of milk across households with different income levels.
围绕低收入家庭食品选择的健康性的辩论仍然是决策者的一个相关争论点，因为他们的目标是提供工具，以不同的方式鼓励消费更健康的食品。以流动牛奶为个案研究，以及美国东北部一年的家庭每周牛奶采购数据，我们通过脂肪含量和包装尺寸，评估了收入水平在贫困线以上和以下的家庭对牛奶的需求。我们发现估计的自有价格弹性在家庭样本之间差异很小:即使在出现差异的情况下，估计值以及购买家庭所经历的价格差异似乎都不能证明两个家庭组的不同购买模式是合理的。家庭特征对不同收入水平家庭牛奶需求的影响存在差异。
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