关键词: 信息化 , 全要素生产率 , 资本深化 , 市场化 , 人力资本

Abstract: In the era of network economy，the level of informatization usually determines the competitiveness and development level of a countryThe effective exertion of informatization to national economy must be matched with a series of complementary investment，market reform and hightech talentsThis paper calculates the ICT capital stock，nonICT capital stock and TFP of Chinas industries in 1979—2014，and studies the impact of informatization on TFPThis paper finds as followsFirst，informatization has a significant positive effect on TFP，especially when it is accompanied by capital deepeningThat is，the higher the level of real economy development，the greater the contribution of informatization Second，the improvement of marketization can further release the “creative destruction” effect brought by informatization，thus enhancing the positive impact of informatization on TFP significantlyThird，the higher per capita education level，the greater contribution of informatization to TFPThe conclusion of this paper has profound policy implicationWhile increasing the investment of ICT capital and improving the level of informatization，we need to pay more attention to the implementation of complementary conditionsFurther upgrading the level of industrialization，expanding the proportion of machine equipment in fixed assets investment，speeding up the marketization reform，raising the level of human capital，especially the cultivation of highend talents is the basis and guarantee to give full play to the positive role of informatization

Key words: informationization , TFP , capital deepening , marketization , human capital