Research On Evaluation Of Logistics Efficiency Of Coal Enterprises Based On DEA-Malmquist Index

The "Coal Logistics Development Plan" issued by the National Development and Reform Commission and the National Energy Administration proposed that by 2020,a modern coal logistics system should be basically formed,with a cohesive logistics network,advanced technology and equipment,green and efficient logistics services.The coal transportation pattern of my country's "Northern Coal Transportation to the South,Western Coal Transportation to the East" poses a huge challenge to this goal.Studying the logistics efficiency of large coal enterprises is not only an urgent need for coal companies to optimize their industrial structure,but also an important guarantee for promoting the construction of my country's modern coal logistics system.This article takes coal enterprises as the research object and the logistics efficiency of coal enterprises as the research problem.First,it defines the concepts of efficiency and coal enterprise logistics efficiency in this article;then,based on the current development status of China's coal enterprise logistics,based on the current problems,it collects the relevant data of 15 large coal enterprises in China from 2014 to 2018,and uses the BCC model,super-efficiency DEA model and Malmquist index model in the data envelopment analysis method to evaluate the logistics efficiency of coal enterprises,and analyze from the aspects of comprehensive technical efficiency,pure technical efficiency,scale efficiency and dynamic changes of Malmquist index;finally,based on the results of coal enterprise logistics efficiency measurement,a panel data model is established,and five influencing factors of economic operation level,transportation capacity level,technological innovation level,logistics human resource cost and logistics specialization level are selected.Measure the influence of these factors on the logistics efficiency of coal enterprises.The results show that:the level of economic operation,the level of transportation capacity,the level of technological innovation and the level of logistics specialization are positively correlated with the logistics efficiency of coal enterprises,and the cost of logistics human resources is negatively correlated with the logistics efficiency of coal enterprises.This article focuses on the Chinese coal market and conducts an empirical analysis of the logistics efficiency of large coal companies,filling the gap in the quantitative research field of coal companies' logistics efficiency.When evaluating the logistics efficiency of coal enterprises,comprehensive consideration is given to the coal enterprise's infrastructure,personnel,environmental protection,transportation and other aspects,which makes the calculation results more reasonable and accurate;based on the logistics efficiency evaluation results,find out the main factors that affect the logistics efficiency of coal enterprises,and dig deeper into ways to improve the logistics efficiency of coal enterprises,effectively improve the logistics efficiency of coal enterprises,thereby promoting the optimization and upgrading of the coal industry structure,and promoting the sustainable development of China's modern coal logistics system.