| 多空间尺度下知识溢出对中国研发活动效率的影响 |
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| 引用本文： | 覃雄合,侯纯光,卢函,杜德斌.多空间尺度下知识溢出对中国研发活动效率的影响[J].地理科学,2021,41(3):380-386. |
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| 作者姓名： | 覃雄合 侯纯光 卢函 杜德斌 |
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| 作者单位： | 华东师范大学全球创新与发展研究院/华东师范大学城市与区域科学学院，上海 200062 |
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| 基金项目： | 国家社会科学基金项目(19ZDA087);国家自然科学基金项目(42001124) |
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| 摘 要： | 在多空间尺度下的知识溢出机制框架基础上，将研发过程分解为知识创造和知识商业化2个阶段，建立空间计量模型考察不同空间尺度下的知识溢出对中国省际研发活动效率的影响。整体上，中国研发活动效率呈逐年提升趋势，但区域差异显著，呈现“东高、中快、西低”的发展态势；各阶段效率具有空间异质性，沿海地区知识创造效率高、知识商业化效率低，而西部地区的情况则相反。从空间特征来看，中国整体研发活动效率呈现显著的空间集聚性。区际知识溢出对中国研发活动效率产生显著的正向影响；区域内研发活动各阶段间的知识溢出仅发生在区域内部而不是区域之间；国际知识溢出对研发活动效率的影响却不显著。
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| 关 键 词： | 知识溢出 多空间尺度 研发活动效率 空间计量模型 |
| 收稿时间： | 2020-03-19 |
| 修稿时间： | 2020-05-22 |
The Impact of Knowledge Spillover on the R&D Efficiency in China:A Multi-spatial Perspective |
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| Qin Xionghe,Hou Chunguang,Lu Han,Du Debin.The Impact of Knowledge Spillover on the R&D Efficiency in China:A Multi-spatial Perspective[J].Scientia Geographica Sinica,2021,41(3):380-386. |
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| Authors: | Qin Xionghe Hou Chunguang Lu Han Du Debin |
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| Institution: | Institute for Global Innovation and Development, School of Urban and Regional Science, East China Normal University, Shanghai 200062, China |
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| Abstract: | Knowledge spillover is an important mechanism to improve the R&D efficiency. Based on the theoretical analysis, a multi spatial framework of knowledge spillover mechanism is constructed, and a spatial econometric model is established based on the panel data of 30 provinces in Chinese mainland from 2009 to 2017. The impact of knowledge spillover in different spatial scales on the R&D efficiency is investigated. We find that two-stage chain R&D activities in China show the characteristics of spatial heterogeneity and spatial dependence. The knowledge creation efficiency in coastal areas is relatively high, and the knowledge commercialization efficiency is relatively low, while the western region presents the opposite characteristics. In addition, interregional knowledge spillover has a significant positive impact on the overall R&D efficiency, and the overall R&D efficiency in the region is affected by the R&D externalities in neighboring areas. Finally, with respect to R&D value chain effects, we find that R&D value chain spillovers took place intra-regionally but not inter-regionally. However, the impact of international knowledge spillover on the efficiency of R&D activities is not significant. The conclusions allow us to fully capture the mechanism of knowledge spillovers and provide evidence for case studies in China. |
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| Keywords: | knowledge spillover R&D efficiency multi-spatial scale spatial econometric model |
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