摘要
运用Cobb-Douglas生产函数模型,构建考虑粮食直接补贴影响因素的现阶段我国粮食生产影响函数经验模型,并利用2004～2007年29省的相关面板数据估计我国粮食直接补贴对粮食产量影响的弹性系数,对比分析了粮食直接补贴政策因素对我国粮食产量影响的有效性和局限性。结果表明:现阶段我国粮食直补对粮食产量影响的弹性系数为0.002 3,在现有补贴制度和水平下,粮食直接补贴对粮食产量的增加有积极作用,但作用有限;粮食价格对粮食产量影响的弹性系数远大于粮食直补对粮食产量的影响弹性系数,因此,政府在加强和完善粮食直接补贴政策的同时,应充分重视利用市场机制适当提高粮食价格对促进粮食安全的基础性作用。
We build the influence function empirical model of China＇ s grain production at the present stage in view of the factors influencing di- rect grain subsidies, using Cobb-Douglas production function model. And we estimate the elasticity coefficient of impact of China＇ s direct grain subsidies on grain yield, using the panel data pertaining to 29 provinces in the period 2004 - 2007 ; comparatively analyze the validity and limita- tion of policy factors of direct grain subsidies on China＇ s grain yield. The results show that at the present stage, the elasticity coefficient of impact of China＇ s direct grain subsidies on grain yield is 0.002 3, and under the existing subsidy system and level, direct grain subsidies play a positive role in increasing grain yield, but the role is limited; the elasticity coefficient of impact of the food price on grain yield is much larger than that of impact of direct grain subsidies on grain yield. Therefore, the government should strengthen and improve direct grain subsidy policies; in the mean time, pay full attention to the use of market mechanism to consolidate the basic role of the food price in promoting food security to a great extent.
出处
《安徽农业科学》
CAS
2012年第14期8334-8335,8354,共3页
Journal of Anhui Agricultural Sciences
基金
西南大学科研基金资助项目(SWU10306)
中央高校基本科研业务费专项资金资助项目(SWU1109039)
关键词
粮食直接补贴
粮食产量
粮食价格
弹性系数
Direct grain subsidies, Grain yield, Food price, Elasticity coefficient
