价格上涨冲击对居民食物消费与营养摄入的影响研究:以低收入群体为例  

Impact of Rising Price Shocks on Residents'Food Consumption and Nutrient Intake:A Case Study on Low-income Group

作　　者：朱文博 李国景 ZHU Wen-bo;LI Guo-jing(Rural Development Institute,Chinese Academy of Social Sciences,Beijing 100732,China;Institute of Agricultural Resources and Regional Planning,Chinese Academy of Agricultural Sciences,Beijing 100081,China)

机构地区：[1]中国社会科学院农村发展研究所,北京100732 [2]中国农业科学院农业资源与农业区划研究所,北京100081

出　　处：《中国食物与营养》2023年第10期35-44,共10页Food and Nutrition in China

基　　金：2023年中国社会科学院创新工程项目“大食物观下的食物供给能力研究”(项目编号:2023NFSB10);中央级公益性科研院所基本科研业务费专项“耕地科技创新学科体系建设与战略研究”(项目编号:Y2022ZK22);国家马铃薯产业技术体系项目“马铃薯产业经济研究”(项目编号:CARS-9)。

摘　　要：目的:在频现食物价格大幅上涨的背景下,了解食物价格上涨冲击对低收入群体食物消费和营养摄入的影响有着重要的现实意义。方法:利用中国6省的城镇住户收支调查微观数据,采用准确映射斯通指数隐含马歇尔(EASI)需求系统模型和弹性模拟分析法,分析了食物价格上涨对低收入群体食物消费和营养摄入的可能冲击影响。结果:肉类和果蔬价格上涨时,肉类、蛋类和果蔬的消费量显著降低,奶类成为最主要的替代品,油脂的消费量略有提高;猪肉涨价显著降低了胆固醇、脂肪和蛋白质的摄入水平,果蔬涨价显著减少了维生素C、维生素A、膳食纤维和钾元素的摄入量;面对相同程度的食物价格上涨冲击,低收入群体的食物消费量比中高收入群体降幅更大,并可能出现能量摄入低于保证健康的基本需求量的情况。结论:要通过保障重要农产品的有效供给安全和加强食物流通环节的监管监测来稳定食物价格,同时,针对低收入群体,要建立更加精准的食物保障政策体系,增加增收渠道,守住最低能量摄入标准的底线。【Objective】Under the background of frequent food price increasing,understand the impact of food price increasing on food consumption and nutrient intake of low-income group has important practical significance.【Method】This paper used the urban household income and expenditure survey micro-data from six provinces in China,adopted the EASI demand system model and elastic simulation analysis method to analyze the impact of rising food prices on food consumption and nutrition intake in low-income group.【Result】When the prices of meat and fruits and vegetables increase,the consumption of meat,eggs and fruits and vegetables will decrease significantly.Milk will become the most important substitute and the consumption of oils and fats increased slightly.And the increase in pork prices significantly reduces the intake of cholesterol,fat and protein,and the increase in fruit and vegetable prices significantly reduces the intake of vitamin C,vitamin A,dietary fiber and potassium intake.Facing of the same degree of shock from food price increases,the food consumption of low-income group will drop more than that of middle-and high-income groups,and energy intake may be lower than the basic needs to ensure health.【Conclusion】It is necessary to stabilize food prices by ensuring the effective supply security of important agricultural products and strengthening the supervision and monitoring of food circulation.In addition,for low-income group,it is necessary to establish a more accurate food security policy system,increase income channels,and maintain the bottom line of minimum energy intake standards.

关 键 词：食物涨价 低收入群体 食物消费 营养摄入 

分 类 号：F726[经济管理—产业经济] F126.1