抄録
This report is a theoretical consideration about agglomerating process of industries. We applied Input-Output Analysis to this subject. We originated some indexes using Inverse Matrix to supplement insufficiency of existing indexes. Those were Industrial correlative coefficient, Input concentration coefficient, Output concentration coefficient and Income generation ratio. We compared values of those indexes about all industries and indicated that there were two types of agglomerating force of productive groups. Type-1 : groups forming self-multiplicative agglomeration. Type-2 : groups forming stiff agglomeration. And we indicated that there were the kernel industries of agglomerating process and the industries which were utilized for instrument of labour by all industries including themselves. We concluded that these industries were very important for the agglomerating process.
