中国城市网络空间结构研究——基于A股上市医药公司网络

doi:10.18306/dlkxjz.2018.08.009

Abstract

Abstract:

Urban network research based on a specific type of industry has unique value and is essential for understanding the industrial pattern and urban function. Using the data of headquarters and branches of the Chinese A-share listed medicine enterprises, this article analyzes the characteristics of urban networks shaped by these firms. The results show that: (1) Most of the headquarters of medicine enterprises are concentrated in the coastal economic regions, including the Yangtze River Delta, the Pearl River Delta, and the Beijing-Tianjin-Hebei Region. Wuhan, Beijing, and Hangzhou are the important nodes in the network. (2) Five urban clusters stand out in the urban networks shaped by Chinese medicine enterprises. Moreover, the connectivity values in urban networks are significantly different, which are mainly formed by hierarchical diffusion and proximity diffusion, with strong connections between the developed city pairs and their surrounding cities. (3) Developed cities generally have high power and influence in the network. Meanwhile, some small or medium-sized cities with abundant resources have also played an important role in the network. (4) China's medicine industry is still in the early stages of internationalization. Only a few cities, such as Hangzhou, Shenzhen, Kunming, and Tianjin, have strong international connections. (5) The spatial structures of urban networks vary greatly among different subsectors of medicine enterprises, while Beijing, Shanghai, Wuhan, and other major cities play a central role in all subnetworks.

Key words: medicine enterprise, urban network, spatial structure, publicly listed firm, firm network, China

Yaling YE, Bofei YANG, Ziyun HE, Beini ZENG, Fenghua PAN, Cheng FANG. Spatial structure of urban network based on Chinese A-share listed medicine enterprise network[J].PROGRESS IN GEOGRAPHY, 2018, 37(8): 1096-1105.

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城市对	联系强度	城市对	联系强度	城市对	联系强度
北京-张家口	54	南昌-宜春	42	重庆-新乡	30
杭州-上海	51	绍兴-杭州	39	北京-海口	27
杭州-台州	48	北京-武汉	39	北京-烟台	24
北京-上海	48	上海-武汉	36	北京-泰安	21
上海-淄博	45	广州-深圳	36	北京-广州	21
北京-衡阳	42	南京-福州	33	北京-淄博	21

特征向量中心性		点出度		点入度
上海	1.00	武汉	1.00	上海	1.00
香港	0.91	北京	0.82	北京	0.92
北京	0.81	长沙	0.77	香港	0.77
广州	0.64	杭州	0.70	成都	0.54
武汉	0.64	深圳	0.46	广州	0.46
成都	0.63	海口	0.38	杭州	0.42
杭州	0.60	淄博	0.36	苏州	0.42
昆明	0.53	重庆	0.31	武汉	0.38
苏州	0.47	上海	0.30	深圳	0.35
济南	0.45	烟台	0.30	天津	0.35

城市	功能得分	城市	功能得分	城市	功能得分	城市	功能得分
特伦顿	6	新德里	2	鹿特丹	1	塔什干	1
维尔京群岛	6	法兰克福	1	洛杉矶	1	维多利亚	1
开曼群岛	5	汉堡	1	名古屋	1	温哥华	1
圣地亚哥	5	吉隆坡	1	莫斯科	1	悉尼	1
纽约	4	金边	1	内罗毕	1	巴黎	1
巴西利亚	2	坎帕拉	1	萨摩亚群岛	1	达雷斯萨拉姆	1
多佛	2	埃克斯顿	1	拉各斯	1	新加坡	1
山景城	2	安提瓜	1	博尔斯瓦德	1	马哈拉施特拉邦	1
首尔	2	杜塞尔多夫	1

城市	杭州	深圳	昆明	天津	连云港	广州	上海	台州
对外连接度	42	33	18	15	12	9	9	9
城市	北京	海口	淄博	沈阳	通化	武汉	信阳	长沙
对外连接度	6	6	6	3	3	3	3	3

Spatial structure of urban network based on Chinese A-share listed medicine enterprise network

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