Abstract

Although brands increasingly disseminate their brand biographies through brand sources, this research shows that this practice can decrease brand attitudes and consumer preferences. A brand source activates consumers’ persuasion knowledge, increasing negative thoughts and impeding narrative transportation into the brand biography. This research furthermore demonstrates that the negative impact of a brand source in the dissemination of brand biographies depends on self-congruence, such that a detrimental effect on consumer attitudes and preferences occurs when the brand biography is incongruent with consumer's self-concept, but is mitigated when the brand biography is self-congruent. These findings suggest that the dissemination of brand biographies by brand sources requires consideration of source and congruence effects.