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英文文献：Price Sensitivities For U.S. Frozen Dairy Products-美国冷冻乳制品的价格敏感性
英文文献作者：Maynard, Leigh J.,Narayanan, V. Venkat
英文文献摘要：
Price elasticities and flexibilities for a system of frozen dessert products are estimated from scanner data. Simultaneity tests reject exogeneity of conditional expenditures, but not prices or quantities, at the weekly level. Inverting the elasticity matrix to obtain flexibilities, while theoretically appropriate, appears to be empirically unacceptable.
冷冻甜点产品系统的价格弹性和灵活性由扫描器数据估计。同时性测试拒绝有条件支出的外生性，但不拒绝每周水平上的价格或数量。反求弹性矩阵以获得柔性，虽然理论上是适当的，但在经验上似乎是不可接受的。
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