英文文献：Market Structure And Consumer Valuation In The Rbst-Free And Organic Milk Markets-市场结构和消费者价值在无铅和有机牛奶市场
英文文献作者：Dhar, Tirtha Pratim,Foltz, Jeremy D.
英文文献摘要：
This study uses revealed preferences of consumers to study the consumer valuations of rBST-free and organic milk. The study specifies and estimates a quadratic AIDS model for different milk types using US supermarket scanner data. The introduction of rBST-free and organic milk is used to estimate both competitive and variety effects as measures of consumer valuations. Results show significant consumer valuations for organic milk and to a lesser extent rBST-free milk.

本研究利用消费者的偏好来研究消费者对脱脂和有机牛奶的评价。该研究利用美国超市扫描数据，为不同类型的牛奶指定并估计了一个二次型艾滋病模型。引入无乳酸菌和有机牛奶是用来估计竞争和品种的影响，作为衡量消费者的估价。结果显示，消费者对有机牛奶和脱脂牛奶的评价显著。