Abstract
This study compared the inter-city business network structure in 1991 and 2001, by using the establishment and enterprise census. In order to clarify the change in number of employees per customers, the relationship between employees on the inter-city business structure and estimated business network is analyzed and compared in 1991 and 2001. It was shown that the headquarters of nation-wide firms increased in Tokyo, but they decreased in the surrounding area. Further, the number of employees per customers in 2001 was fewer than that in 1991 at the identical branch function level. It means an employee in 2001 can supervise much number of customers than 1991.