| 技术活动、空间外溢与高技术产业TFP |
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| 引用本文： | 李若曦,赵宏中.技术活动、空间外溢与高技术产业TFP[J].科学学研究,2018,36(2):264-271. |
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| 作者姓名： | 李若曦 赵宏中 |
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| 作者单位： | 武汉理工大学经济学院 |
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| 摘 要： | 文章利用1999-2014年中国27个省市自治区的高技术产业面板数据，借助空间杜宾模型（SDM），将自主创新、模仿创新和技术模仿等技术活动置于技术学习曲线理论框架下，实证考察了其对TFP的影响，辨明了中国高技术产业目前所处的发展阶段和技术活动的空间外溢效应。结果表明，现阶段高技术产业自主创新对TFP具有显著倒U型效应，模仿创新为显著U型效应，技术模仿效应不显著，即技术模仿对TFP提升的推动力减弱甚至基本消失，模仿创新的效应由不显著逐渐转为正向显著，自主创新的效应由正向显著逐渐转弱为不显著，且自主创新对TFP影响大于模仿创新，技术水平逐渐接近国际前沿。同时，技术活动具有明显的空间外溢效应，且外溢效应大于地区内部的直接效应。
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| 关 键 词： | 自主创新 模仿创新 技术模仿 全要素生产率(TFP) 空间外溢效应 |
| 收稿时间： | 2017-03-14 |
Technical activities,spatial spillover and TFP of high-tech industry |
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| Abstract: | Based on Chinese panel data of 27 provinces in high-tech industry over the period from 1999 to 2014, the paper studies the influence of technical activities, including independent innovation, simulating innovation and technology imitation, on TFP in the framework of technology learning curve with Spatial Durbin Model. And then the paper identifies the development phases of high-tech industry and spatial spillover of technical activities. The results show that independent innovation influences TFP with the inverted U-shaped curvilinear effects and simulating innovation influences TFP with the U-shaped curvilinear effects in high-tech industry. The effect of technology imitation is not significant. It means that the impetus of technology imitation on TFP has moderated or even vanishes. The effect of simulating innovation turns from non-significant to positive. The effect of independent innovation turns from positive to non-significant. And independent innovation has a greater impact on TFP than simulating innovation. Technological level is close to international advanced technique. In addition, innovation activities have the obvious spatial spillover effect and the spatial spillover effect is greater than intraregional direct effect. |
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