부산대학교 도서관

While big data brings convenience to people, negative effects such as privacy infringement cannot be ignored. Focusing on the extended parallel process model, this study attempted to study the effect of perceived threats and efficacy against privacy infringement on advertising trust and advertising avoidance through privacy concerns. This study conducted an online survey of 189 social media users in 20s and 30s. As a result of the study, first, we found that the perceived threats of privacy infringement (perceived severity and vulnerability) on social media had a positive (+) effect on privacy concerns, but the perceived threats to privacy did not affect advertising trust and advertising avoidance. Second, the perceived efficacy (self-efficacy, response efficacy) was found not to affect privacy concerns and advertising avoidance, but the efficacy had a positive (+) effect on advertising trust. Third, the higher the privacy concern in social media, the higher the advertising avoidance, but there was no significant effect on advertising trust. Fourth, perceived severity, vulnerability, and self-efficacy showed a significantly positive (+) effect on advertisement avoidance through privacy concerns. The results of this study provide theoretical implications for research on personal information security at a time when privacy concerns are emphasized in social media. Practically, this study provides suggestions that privacy concerns should be considered as a factor influencing advertising effects in social media.