The Impact of Food Prices on Consumption: A Systematic Review of Research on the Price Elasticity of Demand for Food
The Impact of Food Prices on Consumption: A Systematic Review of Research on the Price Elasticity of Demand for Food
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DOI：
10.2105/ajph.2008.151415
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发表时间：
2010-02-01
影响因子：
12.7
通讯作者：
Brownell, Kelly D.
中科院分区：
文献类型：
--
作者：
Andreyeva, Tatiana;Long, Michael W.;Brownell, Kelly D.
鉴于通过改变食品价格来改善饮食的建议，了解价格变化如何影响各种食品的需求是很重要的。我们回顾了160项关于主要食品类别需求价格弹性的研究，以评估食品类别的平均弹性和研究设计的估计变化。食品和非酒精饮料的价格弹性范围为0.27至0.81（绝对值），远离家庭的食品，软饮料，果汁和肉类对价格变化的反应最大（0.7-0.8）。例如，软饮料价格上涨10%，消费量将减少8%至10%。特别需要研究评估价格对从不健康食品到健康食品的替代品的影响以及风险人群的价格反应。(Am J公共卫生. 2010;100：216-222. doi：10.2105/AJPH.2008.151415）
In light of proposals to improve diets by shifting food prices, it is important to understand how price changes affect demand for various foods.We reviewed 160 studies on the price elasticity of demand for major food categories to assess mean elasticities by food category and variations in estimates by study design. Price elasticities for foods and nonalcoholic beverages ranged from 0.27 to 0.81 (absolute values), with food away from home, soft drinks, juice, and meats being most responsive to price changes (0.7-0.8). As an example, a 10% increase in soft drink prices should reduce consumption by 8% to 10%.Studies estimating price effects on substitutions from unhealthy to healthy food and price responsiveness among at-risk populations are particularly needed. (Am J Public Health. 2010;100:216-222. doi: 10.2105/AJPH.2008.151415)