The Coordination Test of Industrial Investment Structure of the Three Provinces in Northeast China and the Adjustment Routes——Based on the marginal output model and the gray speed relating analytical model

The study of industrial investment structure places special emphasis on the contributions to the industrial development from the distribution of the different industrial investment.This paper first tests the investment coordination structure among three industries of the three provinces in Northeast China.The conclusion is that the primary industrial investment is relatively insufficient to the secondary and tertiary industry,and that the marginal output of the tertiary industry is lower than other industries.Then by applying the gray speed relating analytical method to the analysis of contribution order of intra-industrial investment,the adjustment proportion of main investment is revealed so as to promote the coordination development of industrial investment structure.