An Empirical Analysis of Intertemporal and Demographic Variations in Consumer Preferences
利用两个相同定义的支出数据截面，估计了三个不同人口群体的家庭食品非齐次需求系统，发现偏好的人口统计差异和跨期差异都显著，且人口统计变量的纳入方法也很重要。
Abstract Analysis of consumer demand behavior typically focusses on either the cross‐sectional dimension or takes a time‐series approach. The former ignores intertemporal changes in preferences, and the latter ignores differences in preferences among different groups of consumers. In this study two identically defined cross sections of expenditure data are used to estimate a nonhomothetic demand system for food at home for three demographic groups. The results indicate that both demographic and intertemporal differences in preferences are significant and that the method of incorporating demographic variables into the estimation is also important.