Food Stamp Program Participation, Food Prices and Bodyweight Status: New Findings from National Longitudinal Survey of Youth 1979 Cohort
Food Stamp Program Participation, Food Prices and Bodyweight Status: New Findings from National Longitudinal Survey of Youth 1979 Cohort
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食品券计划参与、食品价格和体重状况：1979 年全国青年纵向调查的新发现
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
Zhuo Chen
中科院分区：
文献类型：
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作者：
Qi Zhang;Zhuo Chen
本研究调查了 1979 年全国青年纵向研究队列中食品券计划 (FSP) 参与与体重之间的关联。先前的研究表明，FSP 的参与可能会增加参与者消费高能量食品的倾向，从而影响他们的食物消费模式，从而使他们面临更高的肥胖风险。然而，最近的证据表明，FSP 参与效应与体重的正增长无关。本研究通过使用横截面数据的分位数回归和纵向数据的面板计量经济学方法，重新审视了 FSP 参与与体重状况之间的关联。我们发现，在白人女性受访者中，FSP 参与度与体重之间的正相关关系仍然普遍存在。我们的结果还表明，BMI 分布的百分位数越高，关联性越强。我们还将NLSY79数据集与美国商会研究人员协会（ACCRA）发布的生活成本指数合并，并研究了健康和不健康食品价格对FSP参与者体重状况的影响。初步结果表明，较高的不健康食品价格可以抵消 FSP 参与对体重状况的影响。
This research investigates the association between food stamp program (FSP) participation and body weight among the National Longitudinal Study of Youth 1979 Cohort. Previous studies indicate FSP participation may influence participants' food consumption patterns, by increasing their propensity to consume energy-dense foods, which places them at higher risk for obesity. However, recent evidence suggests that FSP participation effect is not associated with positive weight gains. This study reexamines the association between FSP participation and bodyweight status by using quantile regressions on cross-sectional data and panel econometric methods on longitudinal data. We found a positive association between FSP participation and bodyweight among white female respondents is still prevalent. Our results also indicate that the association is stronger for the higher percentiles of the BMI distribution. We also merged the NLSY79 data set with the Cost of Living Index published by the American Chamber of Commerce Researchers Association (ACCRA) and examined the impact of food prices healthy and unhealthy on the body weight status of FSP participants. Preliminary results suggest that higher unhealthy food prices could offset the impact of FSP participation on bodyweight status.