民间投资、环境规制与绿色技术创新

民间投资作为政府投资的重要补充，为企业绿色技术创新提供越来越多的资金支持，对激发企业创新活力具有重要作用。为进一步引导和鼓励民间投资，以环境规制为中介变量，运用Stata15.0软件和Matlab2016软件，基于长江经济带11省市1999-2016年民间投资和绿色技术创新相关数据，在K阶近邻空间权重矩阵下建立空间杜宾模型。结果显示，长江经济带各地区绿色技术创新呈现显著空间集聚效应；单一的民间投资对技术创新有一定促进作用，但因民间投资目前主要集中在产业低端，与环境规制结合时并未有效促进绿色技术创新。为此，应营造良好的投资环境，促进民间投资有效供给；建立环境倒逼机制，引导民间投资健康发展；发挥区域协同效应，促进绿色技术创新，实现经济高质量发展。

Private Investment,Environmental Regulation and Green Technological Innovation

As an important supplement to government investment, private investment provides more and more financial support for enterprise green technological innovation,and plays an important role in stimulating the innovation vitality of enterprises. In order to further guide and encourage private investment, using environmental regulation as a medium variable, using Stata15.0 software and Matlab2016 software, based on the data of private investment, environmental regulation and green technology innovation of the 11 provinces and cities in the Changjiang Economic Belt from 1999 to 2016 to establish a spatial Dubin model under K nearest neighbor spatial weight matrix. The results show that the green technology innovation of enterprises in various regions of the Changjiang Economic Belt has a significant spatial agglomeration effect. Single private investment has a certain role in promoting technological innovation, but since private investment is currently concentrated in the low end of the industry, it is not integrated with environmental regulation. To this end, we should create a good investment environment, promote the effective supply of private investment, establish an environmental reversal mechanism, guide the healthy development of private investment, play a regional synergy, promote green technology innovation,and achieve high quality economic development.