Testing for Preference Change in Consumer Demand: An Indirectly Separable, Semiparametric Model
消费者需求中的偏好变化检验:间接可分的半参数模型
This article considers 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 demad 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,…