技术流动视角下中国城市网络权力与知识生产的交互影响

Interaction Effect Between Network Power and Knowledge Production Level of Cities in China from the Perspective of Technology Flow

随着城市网络联系的日益紧密,城市网络权力与知识生产能力逐渐呈现相互依赖的特征。基于2001—2020年中国专利权转移数据和隶属联系模型构建城市网络,在解析网络权力与知识生产交互影响时空特征的基础上,通过联立方程模型实证检验了中国城市网络权力与知识生产的交互影响过程及其空间溢出效应。研究表明:①城市网络权力与知识生产水平存在交互的正向影响。城市网络权力的提升显著提高了城市的知识生产水平,反过来城市的知识生产规模又正向影响着城市在网络中的权力地位,两者表现出相互促进的关系。②城市网络权力与知识生产的交互影响具有多维度异质性特征。核心地位、东部地区城市网络权力对知识生产的正向效应分别明显小于边缘地位、中西部地区城市,而知识生产对网络权力的正向效应则明显大于边缘地位、中西部地区城市。③城市网络权力与知识生产水平存在交互的空间依赖效应。城市的网络权力不仅受到邻近城市网络权力的正向影响,还正向依赖于邻近城市的知识生产水平,并且这种空间依赖效应受到地理邻近效应和网络邻近效应的共同作用。

Over the past 30 years,information technology has promoted the rapid development of urban networks in China.Meanwhile,increased attention has been given to the role of urban network power and knowledge production in promoting economic performance.However,the existing literature has more often studied the one-way relationship between network power and knowledge production capacity,and the two-way interaction between network power and knowledge production has been few studied so far.This study sets out to gain a better understanding of interaction between network power and knowledge production capacity through the lens of knowledge flow network in China.Firstly,based on the data on the records of patent transfer between cites in China in 2001-2020 and the ownership linkage model,this paper constructs the urban network and analyzes the spatial and temporal characteristics of the interaction effect between network power and knowledge production capacity,it empirically examines the interaction and spatial spillover effects between network power and knowledge production capacity in Chinese cities through the simultaneous equation model.The conclusions are as the following:1)There is positive interaction between urban network power and knowledge production level,the promotion of network power can enhance the level of knowledge production in cities,and in turn,the scale of urban knowledge production positively affects the power status of the city in the network,and the two show a mutually promoting relationship.2)The interaction between urban network power and knowledge production shows the characteristics of the multi-dimensional heterogeneity.The positive effect of network power on knowledge production capacity in core and eastern cities is significantly smaller than that in peripheral and central-western cities respectively,while the positive effect of knowledge production on network power is significantly larger than that in peripheral and central-western cities respectively.3)There is an interactive spatial dependence effect between urban network power and knowledge production capacity.The urban network power is not only positively affected by the network power of neighboring cities,but also positively depends on the knowledge production capacity of neighboring cities,and the spatial spillover of urban network power and knowledge production in China is influenced by both the geographical proximity effect and the network proximity effect.