关键词: 工业互联网, 互联网+, 生产率悖论, 全要素生产率

Abstract: As the core of ICT, whether the Internet can significantly improve the total factor productivity of enterprises has been debated in the world. The paper tries to further study and judge China’s productivity paradox and draw a logical conclusion. Through comprehensive use of regular law, logical judgment, multi-index assistance and other methods, the paper carries out high-precision repair of enterprise websites, enterprise email, enterprise ID and other indicators, and obtains high-quality Internet data. By creatively using inter-provincial migration data, the paper constructs comparatively effective instrumental variables. Comprehensive use of cross recognition, OP method, LP method, panel tool variable groups, indirect propensity score matching method, direct treatment effect method and so on. Finally, it finds there is no productivity paradox in China as a whole. The paper?s benchmark econometric model shows that after controlling a number of factors, the Internet contributes at least “net” 10 per cent of TFP growth for Chinese manufacturers.

Key words: Industrial Internet, Internet Plus, Productivity Paradox, Total Factor Productivity