Evaluation and analysis of green efficiency of China's coastal ports under the "double carbon" goal: two improved DEA models with CO2 emissions

Linlin Cui, Long Chen () and Xiao Yang
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Linlin Cui: Hengshui University
Long Chen: Hebei GEO University
Xiao Yang: State Grid Hebei Electric Power Research Institute

Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, 2024, vol. 26, issue 11, No 79, 29099-29128

Abstract: Abstract After China put forward the goals of “carbon peaking” and “carbon neutrality,” the past extensive development mode of ports in China is no longer applicable. Consequently, evaluating and analyzing the operation efficiency of China's ports in the context of green and efficient development will contribute to identifying efficiency gaps, improving efficiency and optimizing resource allocation. In this paper, the indicator of CO2 emission is introduced to the traditional efficiency evaluation index system, and 15 China’s coastal ports above the designated size from 2012 to 2020 are selected as research samples. The static green efficiency and dynamic ports’ green efficiency are calculated and analyzed using two improved DEA models with CO2 emissions, respectively. Research findings show that: (1) External environmental elements and random error terms have a considerable influence on the efficiency measurement of ports’ green development, and after excluding these effects, the green efficiency values of most ports in China have increased; (2) the overall green efficiency of ports in China has shown a fluctuating downward trend during the sample period, and most ports are not on the efficient frontier; and (3) in terms of dynamic changes, the green total factor productivity of most ports has increased, and technical growth is the primary cause for improving green efficiency of ports in China. Overall, this paper evaluates the green efficiency of ports in China more effectively and precisely, and provides references and suggestions for improving port efficiency, promoting port cooperation and realizing green development.

Keywords: Three-stage data envelopment analysis; Global Malmquist–Luenberger; CO2 emission reduction; Coastal ports; Green efficiency (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s10668-023-03856-z

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