Abstract
Based on the Beijing panel data from 1990 to 2019, this paper expands the traditional Almost Ideal Demand System (AIDS) model by introducing the nutritional needs indicators by age structure and quantitatively analyzes the structure and characteristics of household food consumption in Beijing. The study estimates and compares the income elasticity, price elasticity, nutritional demand elasticity of food consumption structure, and the per capita food consumption in Beijing is predicted. The results show that commodity prices and income are still the key factors affecting consumer demand. The change in the population's age structure also has a corresponding impact on the consumption structure. The consumption structure of Beijing is in the stage of optimization, and relevant departments should formulate relevant policies to increase farmers' income and stabilize prices.
Highlights
After the reform and opening-up, China's economy has achieved rapid development
Most of the relationship between the two shows a linear distribution, which is suitable for the aids model
Model is a classic model for studying consumption structure, which was proposed by Deaton and Muellbauer (1980)
Summary
After the reform and opening-up, China's economy has achieved rapid development. The per capita income of residents has been increasing. The article first summarizes the research results of previous scholars on food consumption structure from two aspects of influencing factors and evolution trend of food consumption structure; secondly, it analyzes the difference in the food consumption structure of urban and rural residents, at the same time, and the changes of age structure and nutrient intake of different age groups in Beijing were introduced; again, the data is quantitatively analyzed using the AIDS expansion model, and conclusions are drawn, and targeted recommendations are made. Guo et al (2019) used the survey data of urban residents in Beijing to analyze that the middle-aged and elderly people's consumption demand for livestock and poultry meat has decreased, and they prefer to consume plant-based food. The research methods of food consumption structure are divided into the following: some scholars use the Almost Ideal
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