粮食生产对绿色全要素生产率的影响及作用机制——基于空间经济学的视角

Influence and Mechanism of Action of Food Production on Green Total Factor Productivity:From the Perspective of Spatial Economics

基于2004—2018年中国240个地级市的面板数据,构建空间计量模型实证检验粮食生产对绿色发展的空间溢出效应及作用机制。结果表明:粮食生产对绿色全要素生产率具有正向显著的直接效应和空间溢出效应,且在更换矩阵和被解释变量后,结论依然稳健;粮食生产通过增加资本投入,对绿色全要素生产率产生抑制作用;异质性分析发现,在东部地区和粮食主产区,粮食生产对绿色全要素生产率的影响更强。基于此,建议在推进粮食产业高质量发展的同时,应加强不同地区间粮食产业链的合作与联系;针对发展粮食产业而造成的劳动力转移加速和资本投入的增加,政府应提供专项资金以平衡发展粮食产业所带来的负面影响;因地制宜发展粮食主产区的粮食产业,促进全域绿色全要素生产率的提升。

Based on the panel data of 240 prefecture-level cities in China from 2004 to 2018,a spatial econometric model was constructed to empirically test the spatial spillover effect and the mechanism of action of food production on green development.The results show that grain production has a positive and significant direct effect and spatial spillover effect on green total factor productivity,which remains robust after the matrix and the explanatory variables are replaced.Grain production has a suppressive effect on green total factor productivity by increasing capital input.Heterogeneity analysis show that the effect of grain production on green total factor productivity is stronger in the eastern region and the main grain-producing regions.Therefore,it is recommended that while promoting the high-quality development of the grain industry,the cooperation and linkages between the grain industry chains of different regions should be strengthened.The government should provide special funds to counterbalance the negative impact of the development of the grain industry due to the accelerated transfer of labor and the increase in capital investment caused by the development of the grain industry.While developing the grain industry in the main grain-producing regions according to local conditions to promote the green total factor productivity of the whole region.