区域创新政策对碳排放的影响——基于国家自主创新示范区的准自然实验  

The impact of regional innovation policy on carbon emissions-Quasi-natural experiment based on national independent innovation demonstration zone

作　　者：郑酌基 韩先锋 尹玉平 ZHENG Zhuo-ji;HAN Xian-feng;YIN Yu-ping(School of Management and Economics,Kunming University of Science and Technology,Kunming 650093,China)

机构地区：[1]昆明理工大学管理与经济学院,云南昆明650093

出　　处：《中国环境科学》2023年第6期3255-3264,共10页China Environmental Science

基　　金：国家自然科学基金项目(72163018);陕西省社会科学基金项目(2022D019);昆明理工大学人文社科培育重点项目(PYZDD202204)。

摘　　要：基于中国278个地级市2006~2020年面板数据,运用渐进双重差分模型(DID)评估国家自主创新示范区政策实施对地区碳排放量与质的影响及作用机制,并对处理效应的异质性问题展开讨论.研究发现:国家自主创新示范区有效驱动了碳排放的量降质升(平均值为-0.078和0.108);国家自主创新示范区能通过提升能源利用效率、驱动绿色技术创新以及推进产业结构合理化,最终实现有效降碳;国家自主创新示范区在不同经济发展阶段的地区发挥了不同的政策效用,在东部与经济增速较慢地区对碳排放的抑制作用更有成效,对中西部与经济增速较快地区碳生产率的提升效果更为明显.Based on the panel data of 278 prefecture-level cities in China from 2006 to 2020,this paper used the progressive difference-in-differences(DID)model to evaluate the impact and mechanism of the policy implementation of national independent innovation demonstration zones on the quantity and quality of regional carbon emissions.The heterogeneity of treatment effect was also discussed.The results showed that the national independent innovation demonstration zone had effectively driven the quantity reduction and quality improvement of carbon emissions(average values are-0.078 and 0.108).The national independent innovation demonstration zone can ultimately achieve effective carbon reduction by improving energy efficiency,driving green technology innovation,and promoting the rationalization of industrial structure.The national independent innovation demonstration zone had different policy effects in different regions at different stages of economic development.It had a more effective inhibitory effect on carbon emissions in the eastern and slower economic growth regions,and a more obvious effect on carbon productivity in the central and western regions and faster economic growth regions.

关 键 词：国家自主创新示范区 碳排放 量与质 双重差分模型 

分 类 号：X196[环境科学与工程—环境科学]