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Energy and environmental efficiency analysis of China’s regional transportation sectors: a slack-based DEA approach

机译：中国区域交通运输部门的能源和环境效率分析：基于松弛的DEA方法

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With the rapid economic development in China, the transportation sector has become a sector of high energy consumption and high CO_2 emission. In order to effectively reduce energy consumption and CO_2 emission, it is particularly important to reach the best performance standards in China’s transportation sector. In this study, data envelopment analysis is used to evaluate the total factor energy and environmental efficiency of 30 of China’s regional transportation sectors with the ultimate goal of saving energy and protecting the environment. The total factor energy and environmental efficiency is considered using a joint reduction of both energy inputs and undesirable outputs. Our empirical study shows that most of the provincial-level regions in China do not have eco-efficient transportation industries. The energy and environmental efficiency scores in most regions are lower than 0.5, which means that most of them perform poorly in saving energy and protecting environment. In addition, our study shows that the eastern and northwestern areas of China generally performed significantly better than the other areas of China. Therefore, more measures should be taken to balance and coordinate the development between the six large areas.
机译：随着中国经济的快速发展，交通运输业已成为高能耗，高CO_2排放的行业。为了有效减少能源消耗和CO_2排放，达到中国交通运输部门的最佳性能标准尤为重要。在这项研究中，数据包络分析用于评估中国30个区域交通运输部门的全要素能源和环境效率，其最终目标是节约能源和保护环境。通过共同减少能源输入和不良输出来考虑总因素能源和环境效率。我们的经验研究表明，中国大多数省级地区都没有生态高效的交通运输业。大多数地区的能源和环境效率得分均低于0.5，这意味着它们中的大多数在节能和环境保护方面表现不佳。此外，我们的研究表明，中国东部和西北地区的表现总体上要好于中国其他地区。因此，应采取更多措施平衡和协调六个大区域之间的发展。

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