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创新的作用日显突出,提升技术创新能力是实现可持续发展的重要途径。城市相对于乡村的多种优势特征,有利于技术创新的产生;城市化创造的良好环境,能够加速创新扩散。相关分析及因果检验显示:城市化与技术创新高度正相关,城市化构成技术创新水平提高的格兰杰原因;城市规模越大,创新能力越强。创新投入产出模型的时序及面板数据分析发现,城市化对技术创新具有正向促进效应,城市规模、开放程度及地区差异也对创新产出产生显著影响。结论对于合理推进城市化、培育技术创新优势具有启示意义。
The role of innovation has become increasingly prominent. Improving technological innovation capability is an important way to achieve sustainable development. The advantages of cities in comparison with the rural areas are favorable to the emergence of technological innovation. The favorable environment created by urbanization can speed up the diffusion of innovation. Correlation analysis and causality test show that urbanization is highly correlated with technological innovation, and urbanization constitutes Granger reason for the improvement of technological innovation. The larger the city size, the stronger the innovation ability. The analysis of input-output model timing and panel data shows that urbanization has a positive effect on technological innovation. Urban size, openness and regional differences also have a significant impact on innovation output. The conclusions are of enlightenment for promoting urbanization reasonably and cultivating the advantages of technological innovation.