【香樟推文2112】食品税的有效性：来自墨西哥的证据

01

研究背景

数据和实证模型

02

图1  税收对价格的影响

图2  税收对购买卡路里的影响

表1  税收对价格、购买卡路里的影响

图3  价格/购买量VS卡路里

表2  税收对月度价格和产量的影响

小结

03

 Abstract 

We measure the effect of a large nationwide tax reform on sugar-added drinks and caloric dense food introduced in Mexico in 2014. Using scanner data containing weekly purchases of 47,973 barcodes by 8,130 households and an RD design, we find that calories purchased from taxed drinks and taxed food decreased respectively by 2.7% and 3%. However, this was compensated by increases from untaxed categories, such that total calories purchased did not change. We find increases in cholesterol (12.6%), sodium (5.8%), saturated fat (3.1%), carbohydrates (2%), and proteins (3.8%).

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