School of Shipping Economics and Trade, Guangzhou Maritime University, Guangzhou 510725, China.
School of Economics, Jiangxi University of Finance and Economics, Nanchang 330013, China.
Int J Environ Res Public Health. 2022 Dec 12;19(24):16700. doi: 10.3390/ijerph192416700.
Carbon emissions trading policy has received widespread attention from scholars as a core policy tool to reduce carbon emissions. While most scholars have previously focused on the carbon emission reduction effect, this paper investigates the impact of carbon emissions trading policy on green technology innovation using a differences-in-differences method based on provincial panel data from 2005-2019, using a carbon emissions trading pilot as a quasi-natural experiment. The findings show that the policy can significantly promote green technology innovation, but with a lagged effect, and this finding still holds in the robustness test. Further heterogeneity analysis reveals that the stronger the human capital, the stronger the intellectual property protection and the stronger the marketization with better policy effects. In addition, carbon emissions trading policy can indirectly affect green technology innovation by influencing research investment.
碳排放交易政策作为一种减少碳排放的核心政策工具，受到了学者们的广泛关注。虽然大多数学者之前都集中研究了碳减排效果，但本文利用 2005-2019 年省级面板数据，采用双重差分法，以碳排放交易试点为准自然实验，考察了碳排放交易政策对绿色技术创新的影响。研究结果表明，该政策可以显著促进绿色技术创新，但存在滞后效应，这一发现仍然在稳健性检验中成立。进一步的异质性分析表明，人力资本越强、知识产权保护越强、市场化程度越高，政策效果越好。此外，碳排放交易政策可以通过影响研究投资来间接影响绿色技术创新。
