Association analysis of port logistics and regional economy based on gray correlation method: A case study of Zhejiang province

Port logistics promotes regional economy and vice versa. Taking the data of development of economy and port into account, this article compares the linkage between Ningbo´s port logistics and Ningbo´s economy with Zhejiang´s port logistics and the overall economic development in Zhejiang with gray correlation method. It goes through this method and eventually proves the linkage relationship between port logistics and regional economy based on the accumulated statistics. The results also prove that the related degree between the port and a small area is bigger than which between the port and a bigger one. Finally, this article concludes the results combined with the actual situation in Zhejiang Province, and then proposes some recommendations about port logistics and regional economic development, which have reference value for the decision-making to relevant government departments.