| The world has ushered in the era of Industry 4.0.China’s industry is developing rapidly and the industry’s demand for energy is becoming stronger.With the goal of sustainable development,more attention is paid to the issue of energy use.Today is in the background of Industry 4.0,China is committed to improving the existing The production process or the promotion of renewable energy solutions to continuously research and improve energy efficiency,but we still know little about which factors affect and how to affect energy efficiency.The consumption of energy in industrial industries is large.Focusing on industrial energy efficiency is to improve energy use The key factors,national policies and concerns of the country should focus on energy efficiency influencing factors to improve energy efficiency instead of simply relying on reducing energy consumption.This paper adopts the input-output table and considers the energy transfer among 23 industrial industries to obtain the actual energy use of China’s industrial industrial chain from 2002 to 2017 and the economic output of China’s industrial industrial chain.The input-output method and Data envelopment analysis methods are combined to construct an energy efficiency evaluation model for China’s industry,measure the energy efficiency of various sectors of China’s industry,and use the Malmquist index method based on data envelopment analysis to decompose the total factor energy efficiency of various industries into Several parts dynamically show the energy efficiency of the industrial industry,in order to observe the energy efficiency of the industrial industry more clearly,The results found that the total factor energy efficiency of 23 industrial sectors showed an inverted trend of rising first and then falling.On the whole,the efficiency changes of different industrial sectors were different,and we further studied the energy structure of various industries in China from 2002 to 2017.In addition,in order to improve the energy efficiency of the industry,the Tobit model is used to study the various factors affecting the total factor energy efficiency of various industries.It has an impact on the property rights structure,market concentration,technological change,foreign investment level,enterprise scale,and capital.Analyze the degree of in-depth and consumption structure,and then draw relevant recommendations for energy use in various industries. |
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