农业保险对粮食绿色全要素生产率的影响研究——以长江经济带为例

Study on the Influence of Agricultural Insurance on Green Total Factor Productivity of Grain—Taking the Yangtze River Economic Belt as an Example

基于2011—2020年长江经济带省级面板数据,对该经济带粮食绿色全要素生产率,实证分析农业保险对粮食绿色全要素生产率的影响。结果表明:(1)长江经济带整体粮食绿色全要素生产率均值小于1,说明该经济带在2011—2020年的粮食绿色全要素生产率表现出下降趋势,主要原因是粮食绿色生产技术进步出现阻碍,技术进步效应也相应地降低。(2)农业保险保费收入密度对长江经济带整体和下游有显著的负向作用,对上游和中游有显著的促进作用;农业保险保费收入深度和赔付率对长江经济带及各区域均有显著的促进作用,农业保险赔付支出密度对长江经济带及下游有显著的促进作用,对上游和中游有显著的负向作用;农业保险赔付支出深度对长江经济带及各区域均有显著的负向作用。

Based on the panel data of agricultural insurance and grain production in the Yangtze River Economic Belt from^(2)011 to 2020,this paper uses the Global-Malmquist-Leuenberger model to calculate and analyze the green total factor productivity of grain in the economic belt,and uses the Tobit model to analyze the impact of agricultural insurance on the green total factor productivity of grain.The results show that:①The average green total factor productivity of grain in the Yangtze River Economic Belt is less than 1,which indicates that the green total factor productivity of grain in the economic belt shows a downward trend in 2011-2020.The main reason is that the technological progress of green production of grain is hindered,and the effect of technological progress is correspondingly reduced.②The agricultural insurance premium income density has a significant negative effect on the whole and the lower reaches of the Yangtze River Economic Belt,and has a significant promoting effect on the upper and middle reaches;The depth of agricultural insurance premium income and the compensation rate have a significant promoting effect on the Yangtze River Economic Belt and all regions.The density of agricultural insurance compensation expenditure has a significant promoting effect on the Yangtze River Economic Belt and the lower reaches,and has a significant negative effect on the upper and middle reaches;The depth of agricultural insurance compensation expenditure has a significant negative effect on the Yangtze River Economic Belt and other regions.