SUMO-society from the Viewpoint of Network

The Expanding Network of ‘tanimachi’

Abstract

Analysing ‘tanimachi’ which has not dealt with in study of SUMO. This study tries to clarify the function of SUMO-society to the whole society.
SUMO-society and external society keep the complex interaction through ‘tanimachi’. Network analysis is effective in study of imformal groups that we cannot grasp as ordinaly organization which has obvious structure in it. Therefore, network analysis is suitable for study of ‘tanimachi’ as hidden group in external society.
The characteristics of ‘tanimachi’ network analysed in this study tell us that SUMO-society has the role to hide the arbitrary design of political and economical networks which are hidden in external society, and that such SUMO-society as a social system might be one of elements which constitute the whole society.