研发投入的非对称效应、技术收敛与生产率增长悖论——以中国高技术产业为例被引量：21

The Asymmetric Effects of R&D Input,Technology Convergence and Productivity Paradox——Taking Chinese High-tech Industry for Example

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摘要本文在新增长理论的框架下构建了研发投入非对称效应与生产率分解的理论模型,选取门限面板数据模型,研究了中国高技术产业中研发投入对全要素生产率增长、技术效率和技术进步的差异化影响。研究结论表明,随着研发投入的积累,中国高技术产业生产率增速逐渐下降,并且研发存量对全要素生产率(TFP)增长呈现先减弱后增强的影响,研发投入的生产率悖论特征凸显。研发存量对技术效率的提升效应总体显著,同时,也呈现出明显的非对称效应。技术进步方面,研发投入没有促进基础科学的突破性进展、科技成果转化率低、高技术产业创新的难度增大和风险上升,导致研发累积的同时,高技术产业技术进步增速下降,技术进步增速下降也是高技术产业中全要素生产率增速减缓的主要原因。本文还研究了人力资本、技术水平变量对技术变动各组成部分的差异化影响,通过更换门限变量验证了估计结果的稳健性。 R＆D inputs have important impacts on output growth, productivity enhancement and technological progress. High-tech industry plays an important role in promoting R＆D capital accumulation. Chinese high-tech in- dustry R＆D inputs have achieved a sustained and rapid growth during the year 1995 to 2011. Meanwhile, estima- tion results show that the TFP growth of Chinese high-tech industry has experienced a descend course since 2004. Therefore. scholars focus on the issue of the effectiveness of hih-tech industry R＆D input.

作者张同斌

机构地区东北财经大学数学与数量经济学院东北财经大学经济计量分析与预测研究中心

出处《经济管理》 CSSCI 北大核心 2014年第1期131-141,共11页 Business and Management Journal ( BMJ )

基金国家社会科学基金重大项目"‘十二五'时期宏观经济运行动态监测分析研究"(10zd&10) 国家自然科学基金项目"中国高技术产业R&D投入对技术创新的内在驱动机制研究:结构变化两面性与政策效应"(71303035)

关键词研发投入高技术产业技术效率技术进步门限面板数据模型 Key Words：R＆D input high-tech industry technical efficiency technological progress threshold panel da-ta model

分类号 F426 [经济管理—产业经济]

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