The Research Of The Influence Of R&D Input On Value-added In China's High-Tech Products Exports

High-tech industry on behalf of China's core competitiveness,and there is no doubt that the high-tech products' exporting play an important role on pulling China's economic.But the export value-added data shows that the real export profits of China's high-tech industry is not great enough.A large number of studies have shown that R&D has an important impact on the value of export growth,and the R&D investment is the main factor in determining the success of R&D activities.For the entire high-tech industry,if the R&D investment has a positive effect on improving the industry's export value added?And the R&D investment of every industry has produced a consistent effect on the industry?In this paper,we research the impact of the R&D investment on China's high-tech products based on the export value-added accounting.In order to answer the above questions,the mechanism of R&D investment on the value of export value was analyzed through explaining from three respects:influence factor,path and effect.The status of R&D inputs and high-tech products export value-added were analyzed to find out their laws.Based on the data of the World Input-Output Table(WIOT)of 1995-2011,we calculated the annual export value-added of China's high-tech industry in each year,and analyzed the effect of R&D investment on value-added,and then analyzed the difference among these impacts.The conclusions of this paper are as follows:China's high-tech industry R&D is underfunded and inputs are unevenly distributed,the basic researches of all high-tech industries get low investment except for the chemical industry.The share of China's high-tech industry's export value added to all the export value of the industry has increased year by year.The export value of the four industries to maintain the trend of increasing,the export value-added of electrical machinery and optical equipment manufacturing industry has been the highest,and the lowest one is that of the transportation equipment manufacturing industry.Overall,the R&D input has improved the value added of China's high-tech products export.The R&D investment in the chemical industry,electrical machinery and optical equipment manufacturing and transportation equipment manufacturing industry has a significant effect on the export value added increase,while the R&D investment in the machinery industry does not.Comparative advantage factors and factor density factors have an inhibitory effect on the increase of export value added,and the environment of science and technology system and scale factor can promote the increase of export value of high-tech industry.Therefore,I put forward policy suggestions as follows:increasing the R&D investment of the high-tech industry from the aspects of improving the government support,perfecting the financial system and developing the enterprise's inputs awareness,investing in research and development according to the characteristics of the industry and establishing appropriate talent management system.