资源枯竭型城市转型政策对碳生产率的影响——基于中国274个地级市的面板数据

The Impact of Mineral Resource-Exhausted Cities’ Transition Policies on Carbon Productivity: Based on Panel Data from 274 Prefecture-Level Cities in China

碳生产率作为衡量经济发展和碳排放水平的关键指标,对城市的绿色转型有着重要意义。基于资源枯竭型城市支持政策的准自然实验,利用2003—2013年中国274个地级市的数据,运用交错型双重差分法研究扶持政策对碳生产率的影响及其作用机制。研究结果表明:资源枯竭型城市政策支持显著提高了城市的碳生产率,政策效果存在时滞性;扶持政策对产业升级和提高绿色创新没有显著作用;产业升级和绿色创新均不能解释政策如何提高碳生产率。建议扩大受惠城市名单,建立相应监督机制;组织各级政府进行学习交流,促进城市绿色发展;出台人才引进政策,助力产业升级和技术创新。

As a key indicator to measure economic development and carbon emission level,carbon productivity is of great significance to the green transformation of cities.Based on the quasi-natural experiment of support policies for resource-depleted cities,the paper uses the data of 274 prefecture-level cities from 2003 to 2013 to study the impact of support policies on carbon productivity and its mechanism by using the staggered differential method.The results show that the policy support of resource-depleted cities significantly improves the carbon productivity of cities,and the policy effect has a lag;the supporting policies have no significant effect on industrial upgrading and improving green innovation;neither industrial upgrading nor green innovation can explain how policies promote carbon productivity;it is suggested to expand the list of beneficiary cities and establish corresponding supervision mechanism;organizing the learning and exchange of government at all levels helps to promote green urban development;to issue the talent introduction polices can support industrial upgrading and technological innovation.