Economics of Food Energy Density and Adolescent Body Weight
Economics of Food Energy Density and Adolescent Body Weight
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DOI：
10.1111/j.1468-0335.2008.00709.x
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发表时间：
2009-10-01
期刊：
影响因子：
1.4
通讯作者：
Powell, Lisa M.
中科院分区：
文献类型：
--
作者：
Auld, M. Christopher;Powell, Lisa M.
我们提出了一个简单的微观经济行为模型，表明如果从高密度食物中获取卡路里的价格低于从低密度食物中获取卡路里的价格，则高能量密度食物的价格下降会增加体重。对青少年BMI决定因素的估计表明，高密度食品的价格与BMI呈负相关，而低密度食品的价格与BMI呈正相关。餐厅供应情况与体重无关，但超市密度的增加预示着体重的降低。分位数回归表明，体重的大部分变化发生在 BMI 条件分布的前五分位数。
We present a simple microeconomic behavioral model showing that decreases in the price of energy-dense foods increase body weight if the price of obtaining a calorie from dense food is lower than that of less dense food. Estimates of the determinants of adolescent BMI suggest that the price of high-density food is negatively related to BMI whereas the price of low density food is positively related. Restaurant availability is not associated with weight, but increases in supermarket density predict lower weight. Quantile regressions show that most of the changes in body weight occur in the top quintile of the conditional distribution of BMI.