Key Influencing Factors Analysis of Trade Logistics Vulnerability Based on Principal Component Analysis

Trade logistics is the space-time movement system of commodity entity that in the process of commodity circulation. Affected by unexpected events, trade logistics will show the inherent instability, services quality plummeted and economic losses increased, thus initiating system vulnerability, which specifically refers to an unique properties of trade logistics system that the sensitivity when resistance crisis events, and the lack of response capacity, lead to the changes of system structure and function. In this paper, we built evaluation index system of trade logistics vulnerability from infrastructure, information network, operation subject and service assurance of the four dimensions, taking five middle cities as samples, to find out critical influencing factors with PCA, and then analysis and evaluate the key factors which affect trade logistics vulnerability, aimed at provide evidence for improving the status of the vulnerability of trade logistics.