首页|Are cities greener because of innovation?Independent innovation policy and green economic efficiency

Are cities greener because of innovation?Independent innovation policy and green economic efficiency

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The national independent innovation demonstration zone(NIIDZ)is an independent innovation policy that plays a crucial role in implementing strategies.Given the importance of the NIIDZ,this study uses panel data of 278 prefecture-level cities in China from 2006 to 2020 and empirically examines the effect and internal mechanism of the NIIDZ on green economic efficiency(GEE)using the difference-in-difference model(DID).The results show that the NIIDZ effectively enhances the growth of GEE,and the results remain valid through several robustness tests,such as year-by-year propensity score matching.The transmission mechanism sug-gests that the NIIDZ indirectly drives GEE by accelerating scientific and technological investment,promoting talent concentration,and optimizing the industrial structure.Moreover,heterogeneity analysis reveals that the promotion effect of the NIIDZ on GEE is more prominent in the eastern region and high green development level areas.The study's findings can serve as a reference for China to further utilize the policy effectiveness of the NIIDZ and accelerate the high-quality development of the green economy in the future.

National innovation independent demonstrationZone(NIIDZ)Green economy efficiency(GEE)Difference-in-difference model(DID)

Zhuoji Zheng、Xueqin Li、Mengjie Yu、Yuan Li、Xianfeng Han、Yuping Yin

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School of Management,Xiamen University,Xiamen 361005,China

School of Applied Economics,Renmin University of China,Beijing 100872,China

School of Economics,Jinan University,Guangzhou 511436,China

School of Economics and Management,Beijing University of Technology,Beijing 100124,China

School of Management and Economics,Kunming University of Science and Technology,Kunming 650500,China

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National Natural Science Foundation of ChinaYunnan College Students'Innovation and Entrepreneurship Training ProgramYunnan Province Basic Research Program General Project

72163018S202310674173202401AT070393

2024

10.1016/j.cjpre.2024.06.002

中国人口·资源与环境(英文版)
中国可持续发展研究会等

中国人口·资源与环境(英文版)

CSTPCD
影响因子：0.117
ISSN：1004-2857
年,卷(期)：2024.22(2)
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