甘肃省经济网络结构与空间组织模式

Economic network structure and spatial organization model of Gansu Province

运用SBM-Malmquist指数模型综合测度了甘肃省各市(州)的经济发展效率,基于腾讯迁徙大数据、夜间灯光数据和经济发展效率值构建综合引力模型,从网络的视角反映甘肃省各市(州)的经济联系强度。采用社会网络分析方法对城市经济网络的空间结构进行了探究,并进一步梳理总结了区域经济发展的空间组织模式及未来空间优化路径。研究结果显示:甘肃省城市经济网络整体形成"米"字形的空间结构,经济联系网络存在明显的"中心—外围"特征,城市经济网络具有较好的连通基础,程度中心度表现出两级分化趋势,中介中心度极化特征较为明显。区域经济发展已形成单中心联动式、多中心松散式和节点均衡式三种空间组织模式。

Using the SBM-Malmquist index model,this paper comprehensively measured the economic development efficiency of the cities(prefectures)in Gansu.By integrating Tencent’s migration big data,night light data,and the measured economic development efficiency,a synthesized gravity model was constructed to reflect each city’s(prefecture’s)economic connection strength from a network perspective.In addition,this study analyzed the spatial structure of the economic network by using the social network method,and further summarized the spatial organization mode of regional economic development and the future spatial optimization path.The results show that:Gansu province has formed an economic network in which the spatial structure generally can be represented by a‘*’pattern,the whole system has an obvious central-peripheral characteristic.The overall economic network has a good foundation of connection,and the degree of centrality presents a two-level polarization trend with obvious characteristics of polarization between intermediary centrality.And lastly,theregion economic development of Gansu province typically has three spatial organization modes-single-center linkage,multi-center loose,and node equilibrium.