Positive Analysis of Influence on International Trade Development in International Logistics Industry in Tianjin

In order to reveal the causal relationship between Tianjin International Trade and Logistics more accurately, we select Tianjin port cargo throughput plus total foreign trade import and export commodities of Tianjin from Tianjin Statistical Yearbook so that we can respectively reflect the level of international logistics and international trade standards. By using time series data, methods of taking the unit root test, co integration test and Granger causality test, we made an empirical research. Positive analysis shows that: Terms of the Tianjin, the development of international logistics will promote the international trade growth, while international trade is not the reason for the change of international logistics. Empirical research through the methods of Unit root test, co integration test and Granger causality test can clearly show the size of the influence between Tianjin International Trade and logistics industry, and more realistic reflection of the international logistics industry development in Tianjin feature.