MEASUREMENT OF CO-AGGLOMERATION OF INDUSTRY CHAIN IN BEIJINGTIANJIN-HEBEI METROPOLITAN REGION'S MANUFACTURING INDUSTRIES
MA Guo-xia1, ZHU Xiao-juan2, TIAN Yu-Jun3
1. Chinese Academy for Environmental Planning of the State Environmental Protection Administration, 100012, China;
2. Zhengzhou Institute of Aeronautical Industry Management, 450015, China;
3. Waterborne Transportation Institute of Ministry of Transport of the People's Republic of China, 100088
Abstract：Industry agglomeration is not only within individual industries, but also the upstream and downstream industries with input-output relationship are more likely to agglomerate in space in order to save transportation cost and share external economy. As a result, more popular cases of industrial agglomeration are the geographical contiguity of industry group with two or more sectors. In this paper, Using a panel dataset of two-digit manufacturing industries by province during the period of 1995-2004, applying the co-agglomeration index proposed by Ellison and Glaeser, the authors explore the co-agglomeration of more than 60 industry chains in Beijing-Tianjin-Hebei Metropolitan region's manufacturing industries. Further more, through time trend analysis and regional comparison, the co-agglomeration of industry chain and regional competitiveness are explored in Beijing-Tianjin-Hebei metropolitan region. The results are drawn as follows. (1) The average value of co-agglomeration of industry chain is 0.0151, which shows less agglomeration in Beijing-Tianjin-Hebei Metropolitan Region. (2) The co-agglomeration of industry chain of manufacturing industries experiences the rising trend. Moreover, the industry chain of resource-intensive and capital-and-technology intensive industries show more obvious rising trend than labor-intensive industry during the period of 1995-2004. (3) The co-agglomeration of industry chain in Beijing-Tianjin-Hebei Metropolitan Region is lower than in Yangzi River Delta, which indicates that there have development phase gap between two regions. Some capital-and-technology intensive industries experience spatially dispersing process, but the resource-intensive industries concentrate, thus the relationship between co-agglomeration of industry chain and industrial attribute is not explicit in Beijing-Tianjin-Hebei Metropolitan Region.
