Quantitative Study on Transportation's Contribution to Shanghai's National Economy Growth

With the development of the economy,the impact of the transport on the national economy gradually weakened.This paper relies on the input-output method of the theory of industrial linkage combined with the input-output table which was released by Shanghai Statistical Bureau,and based on some measurement indicators,quantitatively analyze the impact of the transport on the national economy in Shanghai.It is obtained that the production efficiency of the transport gradually increases,the role of its dominant position gradually weakened under the conditions of the comprehensive network.At the same time,on the basis of the important position of the marine transportation,it is necessary to optimize and upgrade.