Predicting the Effects of Sugar-Sweetened Beverage Taxes on Food and Beverage Demand in a Large Demand System.

Predicting the Effects of Sugar-Sweetened Beverage Taxes on Food and Beverage Demand in a Large Demand System.
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DOI:
10.1093/ajae/aat049
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发表时间:
2014-01-01
影响因子:
4.2
通讯作者:
Todd JE
Todd JE
中科院分区:
经济学2区
文献类型:
--
作者:
Zhen C;Finkelstein EA;Nonnemaker J;Karns S;Todd JE

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对23种包装食品和饮料以及一种商品的不完全需求系统进行了审查的精确仿射石头指数估计。工具变量被用来控制内生价格。含糖饮料价格每盎司上涨0.5美分,预计将减少23种食品和饮料的总卡路里,但由于产品替代,钠和脂肪的摄入量增加。低收入家庭的卡路里预计降幅大于高收入家庭,尽管低收入家庭的福利损失也更高。忽视价格内生性或估计有条件的需求模型,大大高估了卡路里的减少。
A censored Exact Affine Stone Index incomplete demand system is estimated for 23 packaged foods and beverages and a numéraire good. Instrumental variables are used to control for endogenous prices. A half-cent per ounce increase in sugar-sweetened beverage prices is predicted to reduce total calories from the 23 foods and beverages but increase sodium and fat intakes as a result of product substitution. The predicted decline in calories is larger for low-income households than for high-income households, although welfare loss is also higher for low-income households. Neglecting price endogeneity or estimating a conditional demand model significantly overestimates the calorie reduction.
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