Dan Wu, Haoyu Wang, Jiangnan Chen

Dan Wu

December 09, 2025

Carbon emission efficiency, Evaluation system, Super-efficiency SBM model, Beijing-Tianjin-Hebei region.

In order to promote the achievement of the "dual carbon (carbon peaking and carbon neutrality)" goal, a comparative evaluation of carbon emission efficiency in the Beijing-Tianjin-Hebei region is conducted to address the issues of energy consumption intensity and insufficient research on carbon emission efficiency. Based on the input-output perspective, this study constructs an evaluation system consisting of three dimensions and six indicators: carbon emission input, expected output, and unexpected output. The super-efficiency SBM model is used to measure the carbon emission efficiency of the Beijing-Tianjin-Hebei region from 2012 to 2022. Research shows that the overall average annual growth rate of carbon emission efficiency in the Beijing-Tianjin-Hebei region is 4.07%, but there is significant spatial differentiation; Beijing is a high-level high-speed growth model and will reach an effective state in 2022, while Tianjin and Hebei have lower efficiency (both not exceeding 0.35), which hinders overall improvement; The efficiency improvement is mainly affected by the redundancy of capital and energy investment, as well as the lagging effectiveness of emission reduction policies. Finally, the study proposes suggestions such as establishing a green science and technology innovation transformation platform, promoting industrial structure upgrading, and improving energy consumption monitoring mechanisms to provide support for the green and high-quality development of the Beijing-Tianjin-Hebei region.

© 2025, the Authors. Published by ISCCAC

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