工业集聚对绿色经济效率的作用机理与影响效应研究

Research on Mechanism and Effect of Industrial Agglomeration on Green Economic Efficiency

发展绿色经济,提高绿色经济效率是当今中国经济高质量发展的主题。本文探讨了工业集聚对绿色经济效率的作用机理,运用超效率SBM模型测算了中国285个地级及以上城市的绿色经济效率,同时从生产函数角度出发构建动态面板模型,实证考察了工业集聚对绿色经济效率的影响效应;进一步采用中介效应模型就政府干预视角下工业集聚对绿色经济效率的影响进行了研究。结果表明:整体上,2004-2018年中国绿色经济效率处于波动上升的态势,且沿海和内陆地区波动趋势与全国基本保持一致,但沿海高于内陆地区;从影响效应看,工业集聚对绿色经济效率具有促进作用,但这种促进效应并非持续有效呈倒“U”型的曲线关系;进一步研究发现,工业集聚除了直接对绿色经济效率发挥促进效应,还可以通过政府干预的途径来提升绿色经济效率。因此,绿色经济效率的提升,需要政府动态调整相关的产业政策,避免工业过度集聚所带来的拥挤效应,以此来推动绿色发展。

Developing green economy and improving the efficiency of green economy are the theme of high-quality economic growth in China today.This paper discusses the mechanism of industrial agglomeration on the efficiency of green economy,and uses the super-efficiency SBM model to measure the green economy efficiency of 285 cities in China,at the same time,in order to empirically examine the impact of industrial agglomeration on the efficiency of the green economy,the dynamic panel model was constructed from the perspective of production function.Furthermore,the mediation effect model is adopted to study the impact of industrial agglomeration on the efficiency of green economy from the perspective of government intervention.The results show that,on the whole,the efficiency of China’s green economy is fluctuating and rising from 2004 to 2018,and the fluctuation trend of coastal and inland areas is basically consistent with that of the whole country,but coastal areas are higher than inland areas.From the perspective of the impact effect,industrial agglomeration has a promoting effect on the efficiency of green economy,but this promotion effect is not a continuous and effective inverted“U”-shaped curve relationship.Further research shows that industrial agglomeration can not only directly promote the efficiency of green economy,but also improve the efficiency of green economy through government intervention.Therefore,to improve the efficiency of green economy,it is necessary for the government to dynamically adjust relevant industrial policies to avoid the crowding effect caused by excessive industrial agglomeration,so as to promote green development.