中文摘要：

文章利用时间序列计量检验方法实证分析进口贸易技术溢出对中国技术进步的促进作用。协整检验结果表明国内研发投入、贸易伙伴国研发投入对于中国全要素生产率的提高具有显著的促进作用，然而国内研发投入比外国研发投入对TFP的影响要更加突出；误差修正模型分析结果表明国内研发投入对中国TFP的促进作用具有一定的滞后效应，而贸易伙伴国研发投入对中国TFP的促进不存在滞后效应；进一步的Granger因果检验表明国内与贸易伙伴国的研发投入都是中国TFP变化的Granger原因。

英文摘要：

The time series analysis method is used to analyze the technology spillovers of import trade in China. The co-integration test demonstrates that the R＆D expenditures of trade partners and China significantly pro- mote China＇ s technological progress, however, the domestic R＆D expenditures＇ impact on technological progress is more prominent than the trade partners＇ ; the error correct model analysis shows that there is a certain lagged effect upon the technology promotion of domestic R＆D expenditures while there is no lagged effect upon the technology promotion of trade partners. The further Granger causality test shows that the R＆D expenditures of trade partners and China are both the Granger reasons of the changes of TFP.