Oct 17, 2023
Version 2
Highway carbon unlocking efficiency study based on super-efficiency SBM-Malmquist V.2
- Yun Chen1,
- Qi Luo1,
- machongsen 1
- 1Changsha university of science and technology
Protocol Citation: Yun Chen, Qi Luo, machongsen 2023. Highway carbon unlocking efficiency study based on super-efficiency SBM-Malmquist. protocols.io https://dx.doi.org/10.17504/protocols.io.8epv5xx7jg1b/v2Version created by machongsen
License: This is an open access protocol distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited
Protocol status: Working
We use this protocol and it's working
Created: October 15, 2023
Last Modified: October 17, 2023
Protocol Integer ID: 89304
Keywords: highway carbon unlocking efficiency change index, highway carbon unlocking efficiency, efficiency of highway, efficiency of the highway, level of carbon unlocking efficiency, carbon unlocking efficiency, significant positive correlation with carbon unlocking efficiency, highway carbon, malmquist carbon neutrality goal, efficiency change, economic efficiency, unlocking efficiency study, efficiency study, carbon neutrality goal, achievement of carbon neutrality goal, unlocking efficiency change, efficiency, listed highway company, state of low efficiency, technical efficiency, highway company, highway, coordination of economic efficiency, unlocking efficiency, ecological development of transportation infrastructure, malmquist index model for the decomposition, sustainable development goal, low efficiency, malmquist index model, transportation infrastructure, carbon, tobit regression model
Abstract
Carbon Neutrality goals and Sustainable Development Goals (SDGs), as new requirements for global development at this stage, have raised higher requirements for achieving the coordination of economic efficiency and ecological development of transportation infrastructure, especially highways. To promote the achievement of Carbon neutrality goals and SDGs, this research intends to investigate the carbon unlocking efficiency of highways. In this paper, we take China as an example, use the data of 18 listed highway companies and their provinces from 2010-2021 to conduct the study, measure the static carbon unlocking efficiency by using the super-efficiency SBM model with undesirable outputs, combine with the Malmquist index model for the decomposition of the efficiency and the dynamic analysis, and use the Tobit regression model to analyze the factors affecting the carbon unlocking efficiency of the highway. The results show that (1)From a static perspective, the highway carbon unlocking efficiency shows a steady upward trend, and the highway carbon unlocking efficiency has been in a state of low efficiency in general, with obvious regional differences. (2)From a dynamic perspective, highway carbon unlocking efficiency changes are relatively flat, highway carbon unlocking efficiency change index is in the rising stage, relying on technical efficiency can effectively improve the level of carbon unlocking efficiency. (3)The regional economic level, industrial structure, and urbanization level have a significant positive correlation with carbon unlocking efficiency, while the level of scientific and technological development and the level of opening up have a negative effect.
