| High-tech industry has been the focus of trade and technology spillover since entering the stage of rapid development. From1995to2011, the exports of high-tech industry increased36times. At the end of2011, the proportion of trade in high-tech industry exceeds50percent, making great contribution to the whole trade. It is mystical that large-scale high-tech products export from our country since China is a developing country, especially in high-tech industry.Based on economies of scale in the new trade theory and technology spillovers dynamic theory, this paper make a theoretical analysis concerning the export behavior of the high-tech industry with the tool of D-S model, building a theoretical model of export affect based on technology endowment, technology spillovers and economies of scale. Moreover, in this paper the technology spillover further split into three parts——overflow across industries, overflow within the industry and international technology spillovers in accordance with correlated theories. Those indexes are well estimated and calculated in this paper.In the empirical analysis, we study the technical endowments, technology spillovers and economies of scale’ effects on China’s export of high-tech industry by using a large panel dataset covering17high-tech sub-industries in China from1995to2011. Our results illustrate that:(1) The technical endowment represented by R&D capital stock determines the pattern of trade in high-tech industry.(2) The effect on exports by overflow based on the input-output relationship between the industries, being the main part of technology, is more significant than the overflow within industries and international technology spillovers. Overflow within industries has positive effect on exports and technological progress, taking industrial agglomeration for example; International technology spillovers which is based on imports needs to meet certain technical absorptive capacity, then achieve production efficiency.(3) Economies of scale makes a significant boost for the export of high-tech industry by reducing the fixed cost of manufacturers,(4) The effect of "learning by doing" is a significant presence in the high-tech industry.Based on the analysis above, this paper gives the following policy recommendations:(1)Government should encourage enterprises to increase investment in research and development, promote export through tax favors and other means;(2)Industrial clustering and technology platform within similar industries should be supported, contributing to promote technology spillovers between industry and related industries to enhance the competitiveness of the industry;(3)Change the way of technology import, increasing the proportion of technical services, technical information, technology licensing, so as to the number of scientists and engineers to enhance absorption capacity;(4) Give local enterprises tax favor and R&D subsidy more over foreign enterprises. |
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