关键词: 进口贸易 , 技术进步 , 增长函数 , 状态空间模型

Abstract:  This paper remeasured the level and rate of Chinese technological progress by applying growth function and generalized Solow residuals It built a state space model and used Kalman filtering to empirically analyze technical progress and imports rate of technological progress This study showed that: first, although the overall level of Chinas technology was growing, the rate fluctuated greatly, which indicated that the trend of technological progress was not yet stable; second, imports negatively affected technological progress, which was alleviated by reform and openness It could obstruct technological progress to some extent, but the impact of import trade on the rate of technological progress was still significantly positive

Key words: import , technological progress , growth function , state space model