@article{oai:chuo-u.repo.nii.ac.jp:00012035,
 author = {ISHIKAWA, Toshiharu},
 journal = {経済研究所 Discussion Paper, IERCU Discussion Paper},
 month = {Feb},
 note = {application/pdf, This paper tries to analyze relevancies between city systems from the view point of the empirical analysis. The present paper, applying the network analysis and graphical modeling method, analyze how industrial relevancies between the city systems are formed by using industrial data in Japan.  The paper is organized as follows. In the second section, a method to quantify the characteristics of a city system is explained by using a case study of the city systems in Yamagata prefecture in Japan.  And then, it analyzes the level of relevancies between the city systems by the data of the passenger flow amounts between the prefectures in Japan. Subsequently, in the Section 3 the relevancies between the city systems in examined by using location data of the branch factories and business/sales offices of companies in manufacturing industry. By combining one indicator showing the characteristics of the urban system and three indicators showing cooperativeness of the prefecture, the following can be found out. 47prefectures in Japan are divided into 16 groups and there is a possibility that they can be explained successfully from an economic geographical point of view. Section 4 summarizes the results obtained in this paper.},
 title = {An economic geographical analysis of relevancies between the city systems},
 volume = {307},
 year = {2019}
}