我国城镇居民植物油消费需求分析

Analysis of vegetable oil consumption by China's urban households

在分析我国城镇居民植物油消费特征的基础上,利用线性几乎理想需求系统测算我国城镇居民植物油消费需求弹性。结果表明:从消费支出来看,花生油为富有弹性商品,弹性值为2.0509,菜籽油消费支出弹性较小,为0.4231;从自价格弹性来看,自价格弹性绝对值最高的是大豆油,为-0.8464,表明相对于菜籽油和花生油而言,我国城镇居民对大豆油的消费选择易受价格波动的影响;从各种植物油的替代关系看,大豆油与包括芝麻油、棉籽油在内的其他植物油之间的替代关系最为明显,补偿性价格弹性超过0.4,这也间接证明了近年来大豆油价格相对较低,消费量增长最快的消费特征。

We calculated the demand elasticity of vegetable oil consumption by China＇s urban households using the Linear Almost Ideal Demand System （LAIDS）, based on the analysis of vegetable oil consumption characteristics of China＇s urban households, The results show that in the four major groups of vegetable oil consumption, the consumption of peanut oil is full of elasticity with elastic value of 2.050 9, While that for rapeseed oil is 0.423 1 ; For own price elasticity, bean oil is the highest, which indicates that relative to rapeseed oil and peanut oil, bean oil consumption of China＇s urban households is prone to be influenced by price; The substitute relationship among bean oil and other oils, including gingili and cottonseed oils, is most prominent, the compensated cross-price elasticity is 0.4, which indirectly confirms that bean oil consumption increasing rate is the highest with bean oil price declining.