Research on Green Development Efficiency of Iron and Steel Industry based on Super-Efficient SBM-Malmquist Index Modeling
DOI:
https://doi.org/10.6919/ICJE.202506_11(6).0003Keywords:
Iron and Steel Industry; Dual Carbon Target; Green Development; Super-Efficient SBM-Malmquist Exponential Modeling.Abstract
The green development of the iron and steel industry is not only a new innovative breakthrough for the high-quality development of the iron and steel industry under the “dual-carbon target”, but also an important symbol of the heavy industry's alignment with the construction of ecological civilization. Based on this, this paper takes typical enterprises in China's iron and steel industry as an example, constructs a green development efficiency evaluation system with five levels of capital, labor, energy input, desired and undesired outputs, and measures and evaluates the green development efficiency of the iron and steel industry in the period of 2014-2023 by applying the super-efficient SBM-Malmquist index model. The study shows that:(1) from the level of spatial and temporal evolution, on the one hand, the overall environmental management cost of the iron and steel industry has decreased, and the green development efficiency has shown a rising trend; on the other hand, the green development of the iron and steel industry presents the characteristics of “regional differentiation, technology-driven”, and the overall development trend presents a distribution pattern of North China>Northeast China>East China.(2)From the decomposition results of Malmquist Index, the total factor production of the overall steel industry is growing slowly and steadily, and it is shifting from “efficiency-driven” to “innovation-driven” two-wheel drive mode.
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