Cross-Sectional Analysis of Household Food Demand in Estuaire Gabon: A Near-Ideal Quadratic Demand System Approach
文献类型： 外文期刊
作者： Ignanga, Charlene 1 ; Chen, Yu 1 ; Zhao, Yining 2 ; Liu, Heguang 1 ; Yu, Wen 3 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Agr Econ & Dev, Beijing 100081, Peoples R China
2.Liaoning Univ, Sunwah Int Business Sch, Shenyang 110136, Peoples R China
3.Chinese Acad Agr Sci, Agr Informat Inst, Beijing 100081, Peoples R China
关键词： food demand system; non-parametric; elasticity; QUAIDS; Estuaire; Gabon
期刊名称：AGRICULTURE-BASEL （ 影响因子：3.6； 五年影响因子：3.8 ）
ISSN：
年卷期： 2025 年 15 卷 3 期
页码：
收录情况： SCI
摘要： Gabon depends heavily on food imports to safeguard its food security; yet household food consumption patterns remain underexplored. This study investigates the structure of food demand in the Estuaire region, incorporating demographic determinants such as the age of the household head, household size, youth proportion, and residential distance from shopping centers. Using primary data collected from a randomized survey of 410 households, the analysis employs the Quadratic Almost Ideal Demand System (QUAIDS) model to estimate expenditure and price elasticities. The results indicate that expenditure elasticities are universally positive, with luxury items, including meat, eggs, and fish, exhibiting greater sensitivity compared to staple foods such as poultry, oil, rice, cassava, and bananas, which display inelastic demand. Price elasticities for meat, poultry, fish, eggs, and rice are negative, adhering to the law of demand. Demographic factors, including education, age, and residential location, significantly influence the consumption of meat, cassava, bananas, and oil. Household size, employment type, and youth composition also emerge as critical determinants of increased demand for poultry, fish, and rice. These findings offer policy-relevant insights to strengthen food security and address socioeconomic disparities.
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