Research On China Port Efficiency Based On DEA-TOBIT Model

With the development of economic globalization,the domestic free trade zone is open,and port competition is becoming increasingly fierce.Port development has gradually become an important factor in international competitiveness.As a basic industry for the development of the marine economy,the port industry is the new economic growth point of the country.Facing the complicated and changing international competition situation and the reform pressure of domestic stable development,it is more and more important for China's port industry to improve its own development efficiency.Therefore,it is of great value to carry out research on China's port efficiency rate.At the same time,under the new economic normal,it is increasingly important for China's port industry to improve its own development efficiency in response to the internationally complex and competitive situation and the pressure of domestic stable development and reform.Therefore,on this basis,this paper conducts a comprehensive and systematic study on China's port efficiency and its influencing factors.The purpose of this paper is to clarify the current situation of China's port efficiency,to find the reasons for the port's unsatisfactory efficiency,and to propose some points for the long-term sustainable development of China's ports.Countermeasures for development and construction.This paper is divided into six chapters.In the first chapter and the second chapter,it mainly reviews the related researches on efficiency and port efficiency and related theories,and summarizes the advantages and disadvantages of scholars in the past.It mainly introduces the development of port industry in China at present;the fourth chapter is the construction of port efficiency evaluation system,including the construction of port efficiency evaluation index and the construction of model method.The fifth chapter is based on the sample of 17 listed companies in China.The financial indicators are data indicators,and the DEA-TOBIT model is used to conduct empirical research on China's port efficiency.The sixth chapter is the research conclusions and related countermeasures.Based on the theory and research on port efficiency,this paper analyzes the connotation and specific classification of port efficiency,and compares the existing methods and principles of port efficiency measurement.At the same time,the input and output related indicators are selected under the guidance of scientific principles.This study selects three basic input variables: total assets(ten thousand yuan),operating costs(ten thousand yuan),number of employees(persons);Income(10,000 yuan)and total profit(10,000 yuan)as output indicators,and the impact of total asset turnover,asset-liability ratio,return on assets,shareholding ratio of the top three shareholders,company listing age,company size Relevant factors affecting port operating efficiency.The article uses DEA-TOBIT two-stage method,takes 17 listed companies in China's port industry as research samples,uses the financial indicators of enterprises as sample data,and measures and analyzes the port efficiency and influencing factors in 2011-2016,and uses the Malmquist index.Dynamic analysis of the efficiency changes of China's port industry.The research results show that from the static efficiency analysis,the comprehensive efficiency value of 17 listed companies in the port is relatively high,but the output of the port company still has relative energy saving space while maintaining the same output;from the perspective of dynamic efficiency,research During the period,the total factor productivity of listed companies in 17 ports showed a downward trend.The decline of technology level and the reduction of scale efficiency were the main reasons for the decrease of total factor productivity.From the perspective of efficiency impact factors,total asset turnover and return on assets The equity concentration and time to market are positively correlated with the efficiency of the port.The asset-liability ratio of the enterprise has a negative impact on the port efficiency.The size of the enterprise has no obvious impact on the port efficiency.Finally,based on the empirical results,several suggestions on the improvement of port efficiency are proposed from the policy level and the practical level.The innovation of this paper is to expand and improve the port efficiency research method by arranging the research theories and methods of the past scholars and learning from other related industry efficiency research methods.Secondly,through the literature combing,an evaluation system suitable for China's port efficiency is established.At the same time,the port input and output efficiency values are measured.At the same time,the related indicators of efficiency influencing factors are sorted out and empirical research is carried out.Finally,through the analysis of port efficiency and influencing factors,several countermeasures and suggestions are proposed from the policy level and practice level to improve the efficiency of China's ports and enhance the comprehensive competitiveness of the port industry.