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本文以沪深300指数企业2007~2013年数据为样本,将企业按其所在省份进行划分,通过论证区域投资网络形成的动因,提出区域投资网络表达的内容,并实证研究了我国区域投资网络的结构及其演化过程。研究发现,我国区域投资网络的空间结构差异明显,表现出一定的集聚性,整体结构呈现“小世界网络”特点;网络的度累计概率分布表现为置信度较高的指数分布;由中间中心度比较可知,我国省份间经济联系正逐步趋于均衡,但网络中存在明显的分层。本文的研究发现具有一定的启示:从网络的视角对区域投资进行研究,丰富了交叉持股、区域投资和复杂网络的研究成果;区域投资网络的形成是在政府、市场、区域和企业的推动下,寻求聚集经济的结果;该研究成果可为国家经济发展和区域规划提供参考依据。
Based on the data from 2007 to 2013 of Shanghai and Shenzhen 300 Index Companies, this paper divides the enterprises according to their provinces. By demonstrating the motivation of the formation of regional investment networks, this paper puts forward the content of regional investment networks and empirically studies the regional investment networks in China Structure and evolution process. The research shows that the spatial structure of regional investment networks in our country is obviously different, showing a certain degree of agglomeration, and the overall structure shows the characteristics of “small world network ”; the cumulative probability distribution of network shows the exponential distribution with high confidence; The comparison of center shows that the economic links between provinces in our country are getting more and more balanced, but there is obvious stratification in the network. The research findings of this paper have certain enlightenment: the research on regional investment from the perspective of network enriches the research results of cross-shareholding, regional investment and complex network; the formation of regional investment network is promoted by government, market, region and enterprise , Seek the result of gathering economy; the research results can provide reference for national economic development and regional planning.