This research clarifies the restructuring mechanism of basin area by the following 2 process:
1. Formation process of industrial district within basin area 2. Formation process of social network (business network and personal network As a result, it is found that 1) industrial district is formed centralizing area that gravitateswood and man power, and that social network have been created centralizing this area. 2)business networks and personal networks are dependent on each other,and business networks are highly influenced by external factors andexist on a shortterm basis. However, personal networks are notinfluenced by external factors a nd exist on a long-term basis.
From these results, it is clarified that there is a core within basin area, and by weaving personal networks again, business networks are newly created, and mechanism of basin area isrestructured.
