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| 文章编号：1672-3104(2022)03-0124-14 |
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金融集聚对绿色创新链升级的影响与空间效应 |
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李琳，廖斌 |
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（湖南大学经济与贸易学院，湖南长沙，410079） |
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| 摘 要： 推动绿色创新链升级是实现“双碳”目标的关键。基于我国2003—2019年284个城市的面板数据，利用考虑中间产出的两阶段SBM-DEA模型及耦合协调度模型测算绿色创新链升级指数，从空间关联视角考察了金融集聚对绿色创新链升级的本地效应、空间溢出效应、地理衰减边界及区域异质性。研究结果显示，从全国层面来看，金融集聚对本地绿色创新链升级具有显著的促进效应，并能通过溢出效应辐射带动周边地区绿色创新链升级，但是这种辐射带动效应存在距离衰减特征，辐射突变距离为450 km，衰减边界为950 km；从区域异质性来看，受累积效应影响，绿色创新链升级速度存在东部＞中部＞西部的阶梯特征，且金融集聚对绿色创新链升级的本地效应和溢出效应在东部地区均显著为正，在中部地区仅本地效应显著，而在西部地区两类效应均不显著。基于以上结论，从强化金融集聚效应、疏解绿色创新要素市场壁垒、健全城市群合作平台机制三个方面提出了对策建议。 |
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| 关键词： 金融集聚；绿色创新链升级；空间溢出效应；辐射带动边界；区域异质性 |
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The influence and spatial effect of financial agglomeration on the upgrade of the green innovation chain |
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LI Lin, LIAO Bin |
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（School of Economics and Trade, Hunan University, Changsha 410079, China） |
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| Abstract: Promoting the upgrade of the green innovation chain is the key to achieving the "dual carbon" goal. Based on the panel data of 284 cities in our country from 2003 to 2019, and employing the two-stage SBM-DEA model and the coupling coordination degree model considering intermediate output to calculate the green innovation chain upgrade index, this study investigates, from the perspective of spatial correlation, the local effect, spatial spillover effect, geographic attenuation boundary and regional heterogeneity of financial agglomeration on the upgrading of green innovation chain. The research results show that, at the national level, financial agglomeration exerts a significant promoting effect on the upgrading of the local green innovation chain, and can promote the upgrading of the green innovation chain in the surrounding areas through the radiation of spillover effects. However, this radiation-driven effect has distance attenuation characteristics, with the radiation mutation distance being 450 km and the attenuation boundary being 950 km. From the perspective of regional heterogeneity, affected by the cumulative effect, the upgrading speed of the green innovation chain has a ladder characteristic of eastern > central > western, and the local effect and spillover effect of financial agglomeration on the upgrading of the green innovation chain are significantly positive in the eastern region. Only the local effect is significant in the central region, while both effects are not significant in the western region. Based on the above conclusions, the article finally puts forward countermeasures and suggestions from three aspects: strengthening the financial agglomeration effect, loosening the market barriers of green innovation elements, and improving the cooperation platform mechanism of urban agglomerations. |
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Key words: financial agglomeration; green innovation chain upgrade; spatial spillover effect; radiation attenuation boundary; regional heterogeneity |
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