本文利用UNComtrade的2000-2011年HS6分位贸易数据综合构建了世界高端制造业贸易网络，对技术在贸易网络中的扩散过程进行仿真模拟，并实证检验了贸易网络地位和研发投入对一国技术获取的影响。研究结果表明，技术在贸易网络中的扩散经历技术引入、技术成熟和技术标准化三个阶段，一国技术的获取不仅取决于其研发投入，还与其在国际贸易网络中的身份地位存在密切关联，而且网络地位重要的国家为联通整个贸易网络发挥了枢纽作用；无论是发达国家还是发展中国家，研发投入的增强对其技术的获取都有明显的促进作用，但贸易网络地位对于不同发展程度国家技术获取的影响存在差异，并呈现“倒U型”特征。%This paper firstly constructs the global high-end manufacturing trade networks based on the UNComtrade HS six-digit data from 2000 to 2011,simulates the diffusion process of technology in international trade networks,and makes empirical tests of the impact of trade network status and R&D expenditure on technology acquisition. The results show that:when the technology diffuses through the international trade networks, it experiences three stages, technology introduction,technology mature and technology standardization. The ablility to abtain technology not only associates with one country’ s R&D expenditure,but also with its status in the international trade network,and the countries of important networks status play a hub role to link the whole networks. For both developed and developing countries,the enhancement of R&D expenditure significantly pormotes technology acquisition,while the impact of one country's networks status on technology acquisition is different for different development level countries,and shows significant “inverted U-shape”.
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