DETERMINANTS OF HOUSEHOLD DEMAND FOR FOOD AND NUTRIENTS

家庭食物和营养素需求的决定因素

• 批准号: 3317461
• 负责人: JERE D HAAS
• 金额: $ 6.43万
• 依托单位: CORNELL UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 1985
• 资助国家: 美国
• 起止时间: 1985-09-30 至 1987-02-28
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/3317461
• 关键词: choice; consumer product; dietary constituent; food; household; human population study; low socioeconomic status; nutrition; nutrition related tag; social model

This research proposes to examine the economic and demographic determinants of household food and nutrient consumption among the poor in the United States. The nutrient composition of the household food basket is a primary determinant of nutritional status. Maintenance of optimal nutritional status is essential in preventative health care. Food availability at the household level is modeled as determined by a two-stage decision making process. At the first stage food expenditure is a function primarily of income and household demographic composition. The second stage of the process is the more important, where quantity of each food is modeled as a function of total food expenditure, each and all food prices, and household demographic composition. A complete demand system framework is proposed to estimate the demand for about 15 aggregated (and exhaustive) food groups simultaneously. Complete demand system estimation is superior to single equation estimation in that the interactive nature of demand for different foods is captured in the model. We further propose to explicitly incorporate household demographic composition in the model. Quantity of foods demanded are transformed into nutrients for inferential purposes. The proposed model is innovative in that it utilizes economic theory to construct a model to derive nutritional inference. The complete demand system model mimics consumer decision making behavior, and thus may provide important insight into potential policy instruments for maintenance of dietary adequacy for the U.S. population.

本研究拟探讨经济和人口因素 美国贫困人口的家庭食物和营养素消费 States. 家庭食物篮的营养成分是一个主要的 营养状况的决定因素。 维持最佳营养 地位在预防性保健中至关重要。 家庭一级的粮食供应量由一个 两阶段决策过程。 在第一阶段， 主要是收入和家庭人口组成的函数。 的 第二阶段的过程是更重要的，其中每一个数量 食物被建模为总食物支出的函数， 价格和家庭人口组成。 完整的需求系统 提出了一个框架，以估计约15个总的需求（和 食物的种类，同时。 完全需求系统估计 上级单方程估计，因为 该模型反映了对不同食物的需求。 我们进一步建议， 在模型中明确纳入家庭人口构成。 食物的需求量被转化为营养素， 目的 所提出的模式是创新的，因为它利用经济理论， 构建一个模型来推导营养推断。 完整的需求 系统模型模仿消费者决策行为，因此可以提供 对维持和平的潜在政策工具的重要见解 美国人口的饮食充足性。