期刊
ENERGY ECONOMICS
卷 115, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.eneco.2022.106353
关键词
Environmental regulations; Low-carbon city pilot policy; Marginal abatement cost ofCO2 emissions; Quasi-natural experiment; Shadow price
类别
资金
- National Natural Science Foundation of China (NSFC) [72088101]
- Major Projects of the Chinese National Funding of Social Sciences [19ZDA082]
This study focuses on the impact of the low-carbon city pilot project in China on the marginal abatement cost of CO2 emissions. The results show that the project has increased the cost of reducing CO2 emissions in pilot cities due to the effects of green technology progress and emissions intensity. In addition, the study finds that the project has a greater impact on small and medium-sized cities and non-resource-based cities.
Extant studies mainly focus on the emissions reduction effect of environmental regulations, ignoring their in-fluences on the costs of reducing emissions. This study takes the low-carbon city (LCC) pilot project in China as a quasi-natural experiment and examines its impact on the marginal abatement cost (MAC) of CO2 emissions. Based on city-level data from 2003 to 2018, it first utilizes a dual model of non-linear programming to estimate the shadow price of CO2 emissions, which is applied to measure the MAC. Then, it employs the difference -in-differences (DID) approach to estimate the causal impact. The results suggest that the LCC project has increased the MAC of CO2 emissions of pilot cities by 5.27% through two opposite effects: (i) The green tech-nology progress effect, which decreases the MAC; (ii) The emissions intensity effect, which increases the MAC. The results are robust after accounting for heterogeneous treatment effects, omitted variables, sample selection bias, potential outliers, and confounding factors. Besides, the heterogeneity analysis suggests that the LCC project has a greater impact on small and medium-sized cities and non-resource-based cities. The findings of this study provide a more thorough knowledge of the policy effects of the LCC project and demonstrate the importance of green technology progress in reducing CO2 emissions.
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