Research On The Construction Of System Dynamics Model Of Port Comprehensive Competitiveness

Under the environment of economic globalization,China has gradually become a big market of the global economy,and the port has become an important node of China's foreign economic transactions.The competitiveness of the port not only affects the development of the port itself,but also affects the overall development of the regional economy,and even can affect the overall competitiveness of the whole country.How to develop port?How to compete and cooperate among ports?How to make our port have sustainable competitiveness?These issues have become a lot of scholars and managers are very concerned about,the study of port competitiveness has become an important issue affecting the sustainable development of China's economy.After summarizing existing research methods of competitiveness,this paper studies the comprehensive competitiveness of ports based on system dynamics.First of all,on the basis of the study of theoretical knowledge of port competitiveness and system dynamics,this paper analyzes and summarizes the factors that affect the comprehensive competitiveness of port,then divides the factors into three aspects,such as supporting environmental factors,port performance factors and port development potential factors,using the Analytic Hierarchy Process to determine the factors weight.Secondly,combining with the system dynamics method and theory,establishedthe system dynamics model of port comprehensive competitiveness,and the three subsystems--port supporting environmental competitiveness subsystem,port performance competitiveness subsystem and port development potential competitiveness subsystem are constructed and analyzed,analyzed the relationships among the three subsystems.The cause-effect diagram and the system flow diagram of the system dynamics model were completed by Vensim software,and the mathematical model was constructed.Finally,the model is tested by using the real data collected from China Statistical Yearbook and the data collected from national,provincial and municipal statistical bureaus and literatures.Based on the model test,the simulation experiment is carried out and the improve countermeasures and suggestions.In this paper,the innovation is mainly reflected in the use of system dynamics method to study the comprehensive competitiveness of the port,and fully consider the influence of various factors on the port's overall competitiveness,combined with years of real data,and the data of the first year of the simulation year are taken as the base to evaluate years changes of the comprehensive competitiveness.And finally give reasonable and scientific countermeasures and suggestions to enhance the comprehensive competitiveness of the port.