城市网络特征对吸引国内投资的影响——以长江中游城市群为例

Investment is one of the important forces shaping the regional economic pattern. In the network society, the status and network relations of cities have a significant impact on attracting investment. Based on enterprise investment data, this study builds an internal urban network of Urban Agglomeration in the Middle Reaches of the Yangtze River (UAMRYR) and investment links of other domestic cities to UAMRYR, and describes its network characteristics and investment spatial pattern respectively. Then, using the negative binomial regression method to answer the question: how do the urban network characteristics of UAMRYR affect domestic investment? The results reveal: First, the network of UAMRYR presents a "hub-and-spoke" network structure centered on the provincial capital city, and there are barriers between provinces. There is obvious heterogeneity in the spatial distribution of multiplex urban networks. Second, the sources of domestic investment to UAMRYR are mainly from the eastern regions and a few from the western ones. The ability to attract investment from capital cities in UAMRYR is far better than that of other cities. Third, In-degree Centrality and Weighted In-degree Centrality symbolizing urban prestige and Out-degree Centrality symbolizing urban power have a positive impact on attracting domestic investment significantly. Network structure indicators have no significant impact on absorbing investment, which may be caused by the immature network of UAMRYR.