Rural Food Market,Food Consumption,and Nutritional Health:Examination Based on the Ⅳ-LASSO Method
The high-quality development of rural food markets is an important measure to promote the equalization of urban and rural public services and advance rural revitalization.It is of great signifi-cance to meet the growing demand for food consumption and improve the nutritional health of rural resi-dents.Based on the 2022 social-economic survey data of three provinces,this study applies the machine learning Ⅳ-LASSO algorithm to select instrumental variables and utilizes the instrumental variable method to empirically estimate the impact of rural food markets on the nutritional health of rural resi-dents and its mechanism.The research results indicate that the development of rural food markets signif-icantly influences the nutritional health status of rural residents,reducing the probability of malnutrition while increasing the likelihood of overweight.Furthermore,the impact of rural food markets on the nutri-tional health status of rural residents with different characteristics exhibits heterogeneity,particularly for groups consisting of households with smaller per capita land size.Mechanism tests reveal that rural food markets improve the nutritional health of rural residents mainly by enhancing household dietary quality and nutrient intake.Under the background of implementing the rural revitalization strategy,this research provides empirical evidence and decision-making references for strengthening the construction of basic public service facilities in rural areas,promoting equalization of urban and rural public services,and im-proving the nutritional health of rural residents.
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