工业制成品进口贸易、研发外溢与中国技术进步

Import Trade of Industrial Manufactured Goods, R&D Spillovers and China's Technological Progress

本文以时间序列数据并采用向量误差修正模型(VECM)对我国1992-2008年从OECD十国不同类别工业制成品进口贸易研发外溢与技术进步的关系进行了实证检验。其中进口产品根据其用途分为中间品、资本品和家庭最终消费品;根据进口产品所属行业的研发支出强度不同,可分为高技术、中高技术、中低技术和低技术类产品。结果表明,资本品、中高技术产品和中低技术产品进口贸易的研发外溢显著促进了我国技术进步。中间品作为我国最主要的进口产品类别,其进口贸易的研发外溢并没有带来我国的技术进步,通过进一步的稳健性检验发现,中间品进口贸易的研发外溢效应还与其所属的技术有关。最后,提出相应的政策建议。

Based on the time series data and using the vector error correction model （VECM）, this paper studies the R＆D spillovers effects of China＇s different categories products importing from 10 OECD countries on China＇s technological progress. According to the end use category, the import products can be divided into intermediate goods, household consumption and capital goods. According to the R＆D intensity, the import products can be divided into high, medium-high, medium-low and low technology products. The results suggest that only the import trade R＆D spillovers from the capital goods, medium-high and medium-low technology products can promote the technology level of China. The intermediate goods as the main import goods, its import trade R＆D spillovers can not bring China＇s technological progress. Through further robustness test, I find that the intermediate products＇ import trade R＆D spillovers are subordinate to its technology categories. Finally, the paper put forward the corresponding policy recommendations.