Abstract
This study conducted questionnaire research in Osaka city in order to examine the effect of the media which serves information for people regarding the Osaka Metropolis plan. As a result, people in contact with the media, such as TV or newspaper which the pros and cons are shown, do not change their opinion because it is difficult to sift the genuine from the false.
Based on the elaboration likelihood model, when elaboration is high, the central persuasive route is more likely to occur; conversely, when the elaboration is low, the peripheral route is more likely to occur. In this case, it is suggested that people who referred to the central route changed their opinion to disapprove the Osaka Metropolis plan, and people who referred to the peripheral route changed their opinion to approve the plan.
