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英文文献：Demand Elasticities for Fresh Fruit at the Retail Level-零售层面对新鲜水果的需求弹性
英文文献作者：Durham, Catherine A.,Eales, James S.
英文文献摘要：
The obesity epidemic in the US and elsewhere has re-doubled efforts to understand determinants of the quality of consumers' diets. Part of the discussion has centered on the potential of "fat taxes" and/or the subsidization of the purchase of fresh fruits and vegetables to coax consumers to better diets. Whether this discussion has merit or not, fundamental to the debate are the demand elasticities of the commodities involved. This study employs weekly data from several retail stores on fruit prices and sales to estimate elasticities of individual fruits. Estimates show consumers are more responsive to price than has been found previously.
美国及其它地区的肥胖流行，促使人们加倍努力了解消费者饮食质量的决定因素。讨论的一部分集中在潜在的“肥胖税”和/或补贴购买新鲜水果和蔬菜，以哄骗消费者更好的饮食。无论这种讨论是否有价值，这场辩论的根本问题是相关商品的需求弹性。这项研究使用每周从几个零售商店的水果价格和销售数据来估计单个水果的弹性。据估计，消费者对价格的反应比以前更强烈。
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