自然科学版 英文版
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中南大学学报(社会科学版)
ZHONGNAN DAXUE XUEBAO(SHEHUI KEXUE BAN)

2019年05月第25卷第3期
   
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文章编号:1672-3104(2019)03-0105-11
 
高新区比经开区更利于地区工业减排吗?——来自地级市准自然实验的证据
 
任胜钢,申高翔,郑晶晶
 
(中南大学商学院,湖南长沙,410083)
 
摘  要: 利用2003—2015年中国206个地级市的面板数据,使用双重差分模型及倾向匹配得分法对比研究了国家级高新区与国家级经开区对地区工业排污强度的影响。结果表明:高新区明显抑制了地区工业排污的强度,而经开区则一定程度上加剧了污染;进一步分析则说明上述结果产生的重要原因是高新区带来的大量科技创新有效地减弱了工业排污强度。在此基础上,从工业减排角度对提升产业园区准入门槛、加速转型升级、优化组织结构等提出政策建议。
 
关键词: 国家级高新区;国家级经开区;工业排污强度;产业集聚;科技创新
 
 
Is the High-Tech Zone more conductive to regional industrial emission reduction than the Economic Development Zone: Evidence from a quasi-natural experiment in prefecture-level cities
 
REN Shenggang, SHEN Gaoxiang, ZHENG Jingjing
 
(School of Business, Central South University, Changsha 410083, China)
 
Abstract: Based on the panel data of 206 prefecture-level cities in China from 2003 to 2015, the impact of National High-Tech Zones (NHTZ) and National Economic Development Zones (NEDZ) on the intensity of industrial emission discharge is studied by using the Difference in Difference (DID) model and the Propensity Score Matching (PSM) approach. The results show that firstly, the NHTZs obviously restrain the intensity of industrial emission discharge in the industrial regions, while the NEDZs aggravate the emission to a certain extent. Further analysis shows that an important reason for the above results is that a large number of scientific and technological innovations brought by the NHTZs have effectively weakened the intensity of industrial emission discharge. Based on this, the study puts forward some suggestions to policy-making in enhancing the threshold of access to industrial parks, accelerating transformation and upgrading, and optimizing the organizational structure from the perspective of industrial emission reduction.
 
Key words: National High-Tech Zone (NHTZ); National Economic Development Zone (NEDZ); intensity of industrial emission; industrial agglomeration; technological innovation
 
 
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