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### 中国产业部门隐含碳排放效率研究——基于三阶段DEA模型与非竞争型I-O模型的实证分析

• 出版日期:2021-06-25 发布日期:2021-06-25

### Study on the Carbon Emissions Efficiency Embodied in China’s Industrial Sector—Empirical Analysis Based on Three-stage DEA Model and Non-competitive I-O Model

Hu Jianbo Yan Shuo Han Jun

• Online:2021-06-25 Published:2021-06-25

Abstract: Based on China’ s Input-output Tables ( extended) 2002 - 2017, this paper first applies the non-competitive input-output model to calculate the carbon emissions embodied in each industrial sector in China, introduces them into the carbon emissions efficiency model, and then uses the three-stage DEA model to eliminate the external environment and random interference factors, so as to obtain a more accurate and objective carbon emissions efficiency level embodied in various industrial sectors. The results show that the carbon emissions efficiency embodied in China’ s overall industrial sector is relatively low, and the levels of efficiency between industrial sectors are significantly different. The clustering analysis of the yearly average efficiency of carbon emissions embodied in each industrial sector in the third stage indicates that agriculture, oil and gas, wholesale and retail, catering and other services have high efficiency, electrical machinery and equipment manufacturing, communications equipment and computer and other electronic equipment manufacturing, electric power and heat production and supply, gas production and supply, coal mining have medium efficiency, while resource-dependent and less innovative industries such as textile, clothing, footwear, hats, leather, feather and their products, wood processing and furniture manufacturing, water production and supply, construction, transportation, storage and postal industries have low efficiency. The external environment has a significant impact on the carbon emissions efficiency embodied in various industrial sectors in three ways, namely “ cross type”, “ overlap type” and “ parallel type”. The “ cross type” is mainly in the manufacturing industry, the impact of external environment on its carbon emissions efficiency firstly improving and then suppressing. The “overlap type” is mainly in the agriculture and services industry, and the external environment has little impact on their carbon emissions efficiency. “Parallel type ” is mainly in resource-based industry, and the impact of the external environment on its carbon emissions efficiency depends on specific industries.