长三角地区知识守门人空间演变与作用机制研究

doi:10.18306/dlkxjz.2021.06.003

Abstract

Abstract:

Regional innovation depends on the flow and combination of different knowledge. Knowledge gatekeepers spread the acquired external knowledge to the region and play a key role in regional innovation. However, the role of knowledge gatekeepers in different regional contexts remains to be discussed. Based on the patent cooperation data from 2001 to 2015, this study used social network analysis to identify knowledge gatekeepers in the Yangtze River Delta and measure its contribution rate. It then analyzed the spatial variation characteristics of quantity and contribution rate. Furthermore, this study used regression models to explore the importance of gatekeepers in cities with different knowledge bases. The results show that: 1) The proportion of enterprises among gatekeepers in the Yangtze River Delta has increased, but the contribution of gatekeepers is still dominated by universities. The openness of colleges and universities enables them to perform their functions as knowledge gatekeepers better than enterprises. Cities with a large number of gatekeepers in the Yangtze River Delta are concentrated in the Shanghai-Nanjing-Hefei-Hangzhou-Ningbo development zone, and the contribution rate of knowledge gatekeepers presents a core-periphery structure. Gatekeepers can promote and restrict the acquisition of external knowledge. Hangzhou and Shanghai, where gatekeeper contribution rate was high at the early stages, increased direct external contacts to improve the efficiency of knowledge absorption and dissemination. Other cities with low gatekeeper contribution rates continue to rely on the role of gatekeepers. 2) External linkages of cities have a significant positive impact on the renewal of urban knowledge and the mechanism of knowledge gatekeepers on urban knowledge renewal is spatially heterogeneous. Cities with specialized knowledge bases rely more on external connections through gatekeepers. They need gatekeepers to access, absorb, and use external knowledge. In order to reduce the noise in knowledge flow, cities with diversified knowledge base tend to obtain external knowledge by direct connection. The results of this study provide a policy support for regional collaborative innovation by indicating that regional knowledge renewal should be suitable for the cities of concern, and promote the regional endogenous growth model driven by knowledge spillover.

Key words: knowledge gatekeeper, social network analysis, knowledge base, knowledge renewal, Yangtze River Delta

LI Yuyang, GU Renxu, WANG Tengfei, BI Xuecheng. Spatial evolution and mechanism of knowledge gatekeepers in the Yangtze River Delta region[J].PROGRESS IN GEOGRAPHY, 2021, 40(6): 925-936.

Figures/Tables 7

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References 49

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性质	特征	变量	描述	变量符号
核心变量		守门人贡献率	守门人的作用	GC
		平均外部范围	创新主体间的联系	ADWR
控制变量	集聚经济	内部专利数	城市层面发明活动的规模效应	NP
	集聚经济	赫尔芬达指数(主体层面)	创新主体间发明活动的集中程度	HHI_m
	城市知识基础性质	赫尔芬达指数(技术层面)	城市技术专业化程度	HHI_t
		专利平均被引用次数	城市知识的质量	AC
		克鲁格曼指数	城市间技术专业化的相似程度	KI
	网络结构	最大连接成分比例	城市合作创新网络中内部连接的大小和程度	RLC
	网络结构	集聚系数	城市创新主体之间连接的程度	CCO

变量及统计指标	d_ij≤4			d_ij≤3 模型4	d_ij≤2 模型5
变量及统计指标	模型1	模型2	模型3	d_ij≤3 模型4	d_ij≤2 模型5
ln NP	3.045^***	3.158^***	3.093^***	3.097^***	3.178^***
ln NP	(0.048)	(0.048)	(0.048)	(0.048)	(0.048)
HHI_m			0.733	0.756	0.799
HHI_m			(0.218)	(0.247)	(0.253)
HHI_t			0.290^***	0.243^**	0.201^***
HHI_t			(0.121)	(0.118)	(0.102)
AC			0.462^*	0.469	0.468
AC			(0.013)	(0.031)	(0.029)
RLC			0.739	0.750^*	0.751^*
RLC			(0.001)	(0.001)	(0.001)
CCO			0.981	0.981	0.980
CCO			(0.006)	(0.006)	(0.005)
ADWR	1.013^**	1.021^***	1.038^***	1.112^***	1.201^***
ADWR	(0.018)	(0.018)	(0.018)	(0.024)	(0.015)
GC	0.845^**	0.947^***	0.967^**	0.953^***	0.826^**
GC	(0.031)	(0.046)	(0.073)	(0.074)	(0.079)
KI	2.398^***	2.011^**	2.237^***	2.348^***	2.367^***
KI	(0.145)	(0.107)	(0.153)	(0.094)	(0.092)
GC×KI		2.947^***	3.042^***	3.159^***	3.863^***
GC×KI		(0.376)	(0.326)	(0.326)	(0.457)
常数项	3.825^***	3.897^***	5.743^***	5.370^***	5.905^***
常数项	(0.220)	(0.274)	(0.274)	(0.276)	(0.281)
R²	0.406	0.407	0.438	0.421	0.426

Spatial evolution and mechanism of knowledge gatekeepers in the Yangtze River Delta region

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