Analysis of the Relevance among Equipment Manufacturing Industry,Science and Technology Industry and Information Industry in China Based on Input-output Table

Using input-output method,this paper analyses the relevance among equipment manufacturing industry,science and technology industry and information industry in China from aspects of linkage effect and ripple effect.The conclusion shows:equipment manufacturing industry plays a stronger role in driving economy,while science and technology industry and information industry take basic effect.The development of equipment manufacturing industry depends more on the input of science and technology,but the general level of informatization construction is on the low side and it can’t effectively merge with equipment manufacturing industry and promote its development for the time being.