Estimation of a Two‐Level Demand System with Limited Dependent Variables
从强可分离条件间接效用函数推导出两层级需求模型，利用虚拟价格概念处理零消费样本，估计多米尼加城乡家庭不同收入水平的消费参数，发现高收入家庭对自身价格和收入变化反应较小。
Abstract A two‐level demand model was derived from a strongly separable conditional indirect utility function to analyze Dominican rural and urban household consumption at different income levels. For samples with significant zero consumption, a multivariate limited dependent variable model utilizing the concept of virtual prices was used to obtain consistent estimates of consumption parameters. Results show that households with higher incomes tend to be less responsive to own‐price and income changes in consumption of most food and nonfood commodities. For demographic variates, the elasticities of rice and aggregate food with respect to household composition variables are all positive with few exceptions.