A Non-Homothetic Two-Stage Decision Model Using Aids
提出一个不依赖位似假设的两阶段决策模型，允许组内支出效应灵活变化，并应用于美国制造业需求分析，包括能源需求。
This paper presents a theoretically consistent and tractable two-stage decision-making model that does not rely on the restrictive assumption that group aggregator functions are homothetic. By assuming that within-group cost functions satisfy the almost ideal demand system form, the model incorporates flexible expenditure effects, yet allows within-group prices to be aggregated into two indices that fully capture movements in those prices that are relevant for determining group demands. Thus, the model provides a more flexible alternative to the standard two-stage budgeting models. An empirical application to U.S. manufacturing demands, including an energy aggregate, is provided.