Research On Input-output Efficiency Of Listed Petroleum Companies In China

The 21 st century is an era of energy competition.Energy quantity,energy development efficiency,and utilization efficiency have naturally become important factors affecting a country's competitiveness.Oil is an important energy source for a country,and its related petroleum industry affects the development of the national economy.Since the beginning of the 20 th century,international oil prices have experienced many fluctuations.The first quarter of 2020 witnessed the fourth historic oil price plunge.As a result,the stocks of my country's listed petroleum companies have depreciated,operating losses,and development difficulties.In the face of unprecedented severe impacts and challenges such as COVID-19 combined with the precipitous drop in international oil prices,it is particularly important for petroleum enterprises to achieve the goal of cost reduction and high quality development by improving input-output efficiency.Scientific and effective evaluation and analysis of the current input and output efficiency of oil companies,and finding out the existing problems and room for improvement,can fundamentally improve efficiency and realize the quality and profitable development of oil companies.On the basis of clarifying the topic background,purpose,significance and current research status at home and abroad,the connotation of listed oil companies and input-output efficiency,related theories and commonly used input-output efficiency measurement methods are explained.By comparison,this paper selects data envelopment analysis(DEA).Use the relevant data of my country's listed oil companies to analyze the current status of input and output,and then use the grey relational analysis method to screen the indicator system,and build the input-output efficiency evaluation index system for listed petroleum companies in China.The DEA-BCC model is used to calculate the input-output efficiency of China's listed petroleum companies from a static perspective.The results show that the overall input-output efficiency of listed petroleum companies is relatively ideal,but the development is uneven.The level of input and output is related to the economic development situation and the impact of changes in international oil prices,to the geographical distribution of oil and gas resources and differences in regional economic development,and to differences in national policies and industry development difficulties.Using the Malmquist model to analyze from a dynamic perspective,it can be seen that the growth of total factor productivity is the result of the combined effect of technological progress and technological efficiency.Based on this,a series of measures such as strengthening government policy guidance,strengthening cost control,improving technological innovation capabilities,and optimizing business management models have been proposed to reduce costs and increase efficiency,so as to promote the improvement of input and output efficiency of listed petroleum companies.