抄録
This is a report on several results of the analyses of the scales classified by the number of employee and the areal relation between main firms and their branches, in six cities considered as regional centers-Sapporo, Sendai, Niigata, Nagoya, Hiroshima and Fukuoka.
The numbers of all enterprises are compared with the populations of cities. Those of the non-basic enterprises are in direct proportion to the populations of cities. However, those of the basic ones are different by industry and by city, and the difference shows the character of each city.
In the six cities above referred, the enterprises with 10-29 employees are the most numerous. But the maxima appear in different scales according to the kind of industry, namely, in wholesale industry 5-9 employees, in construction and manufacturing ones 10-29 or 30-99, and in retail industry 1-4, 5-9 and 10-29, and in service one 1-4 and 10-29.
Then, the author deals with the relation between main firms in the cities and the locations of their branches. And he expects from the work to delimit the essential city region defined by the economic power of the city itself. As the result, the extent of the region is defferent by the kind of industry. That is, in wholesale and retail industries and in manufacturing one the areal extent is larger, in construction one the extent covers an area including several prefectures, while in service, in finance and insurance, in mining, in traffic and communication, as well as in real estate industry it is about so large as one prefecture.
As the results of the two analyses, Nagoya seemingly belongs to an upper rank concerning some kinds of industries, Sapporo, Fukuoka, Hiroshima and Sendai have similar characters and are on the same rank as regional centers, and Niigata being a prefectural center belongs to a lower center.
