The Impact of Diversity in Informal Social Networks on Tolerance in Japan

Scholars often incorrectly categorize informal social networks as homogeneous and dismiss their potential for exposing members to diverse opinions. Recent research in the United States, however, shows that diversity in informal social networks exists and has a positive influence on political tolerance. Whether exposure to a politically heterogeneous network also increases tolerance in socially homogeneous Japan is tested here. To do this, two new Japanese national sample surveys that utilize name-generator methodology were created and administered to a sample of respondents, as well as a new measure of network political diversity in a multi-party system. Also, an additional type of tolerance, moral tolerance, was tested. The conclusion is that diversity in informal social networks has a positive influence on political and moral tolerance in Japan.