Testing for Preference Change in Consumer Demand: An Indirectly Separable, Semiparametric Model
构建了一个基于间接弱可分离性的半参数模型，用于检验偏好变化是否解释消费模式，并应用于美国肉类需求数据，发现健康意识导致白肉消费增加、红肉消费减少。
This paper deals with the hypothesis that preference changes may partly explain observed consumption patterns. A model is developed based on indirect weak separability. The kernel estimator of the regression function models the unknown shape of demand functions, and a parametric structure models _seasonality, dynamics, and preference change. This semiparametric specification is applied to U.S. meat demand. The results support the notion that changes in consumer preferences, due to consumers' awareness of the health hazards of cholesterol and saturated fat intake, may explain an increased consumption of white meat and a decreased consumption of red meat.