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

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Abstract 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.

Key words： national independent innovation demonstration zone carbon emissions quantity and quality difference-in-difference model

Received: 03 November 2022

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X196

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	ZHENG Zhuo-ji
	HAN Xian-feng
	YIN Yu-ping

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ZHENG Zhuo-ji,HAN Xian-feng,YIN Yu-ping. The impact of regional innovation policy on carbon emissions-Quasi-natural experiment based on national independent innovation demonstration zone[J]. CHINA ENVIRONMENTAL SCIENCECE, 2023, 43(6): 3255-3264.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2023/V43/I6/3255

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