环境规制的“本地—邻地”绿色技术进步效应

Local-Neighborhood Effect of Green Technology of Environmental Regulation

前沿研究关注环境政策对本地绿色技术创新的激励作用,却普遍忽视环境规制可能对邻地绿色技术进步的影响。本文在Acemoglu et al.(2012)环境技术进步方向模型的基础上,数理演绎环境规制对"本地—邻地"绿色技术创新的影响,结合城市面板数据检验环境规制对"本地—邻地"绿色技术进步作用的真实效果。结果发现:(1)环境规制的"本地—邻地"绿色技术进步效应非一致性特征突出,环境规制并非一定能激励本地绿色技术进步,主要表现为先抑后扬的门槛特征。而环境规制对邻地绿色技术进步表现出倒U型作用效应,且峰值在城市经济圈300千米地域内。(2)高环境规制地区易引致污染产业向邻地转移,短期邻地产业承接会提高其收入水平促进绿色技术进步,但长期污染产业转移会影响邻地产业朝绿色技术方向转变。同时,不同城市环境规制政策并未实现同步激励,减弱了对绿色技术创新的激励及降低"本地—邻地"技术创新联动效应。

Literature focuses on the incentive effect of environmental policies on local green technology innovation,while paying little attention to the effect of neighboring areas.Based on environmental technology progress direction model of Acemoglu et al.(2012),this paper builds two region model to deduce the effect of environmental regulation on local and adjacent green technology innovation.It shows that:①There are non-consistency between the local and neighboring green technology progress effect caused by environmental regulation.The environmental regulation does not necessarily motivate local green technology progress,and has the threshold effect.While it will have an effect of proximity on the neighborhood,which exhibits the inverted u-shaped feature and its peak exists in the 300km economic circle.②Areas with high environmental regulations are prone to lead to the transfer of polluting industries to neighboring areas.In the short term,the increase of polluting industry in neighboring areas improves the income level of the region and promotes green technological progress.However,in the long term,transferring polluting industries will render technical change turn to non-clean direction.Meanwhile,it weakens the incentives to innovating green technology and reduces the linkage effect between local and neighboring technological progress that there is the incoordination of environmental polices among cities in China.