“Other Customer” Perception as Strategic Insight into Gen Z Consumer–Brand Identification and Purchase Behavior: A Mixed-Methods Approach

This study addresses the knowledge and research gaps regarding the “other customer” concept within the consumer–brand identification paradigm, drawing on branding and consumer behavior theories. We consider the “other customer” as the other customers of a brand from the perspective of an individual (focal customer) using or simply assessing the brand. We take into account both how the focal customer is influenced by other customers and how the focal customer perceives those other customers. While the concept is traditionally associated with the service industries, we expand its relevance to product brands. We use Social Identity Theory, Social Comparison Theory, and Other Customer Perception to identify how Gen Z focal consumers construct the image of other consumers of international brands at national level. A mixed-method approach was developed, bringing together MMCA (multimodal content analysis), perceptual mapping regarding brand image, and other customer perceived attributes, as well as a survey addressing (a) focal customer–other customer–brand identification perceived similarity and (b) perceived influence of sustainability on purchase behavior. MMCA was performed on a corpus of 236 other customer profiles of Nike and Adidas, consisting of a visual component and a textual description. The profiles were developed by a convenience sample of 147 Romanian Gen Z young adults. The results show that: (a) The national specificity and history of the brand can lead to diverging, local other customer profiles that might be accepted or rejected based on the desirability and similarity perceived by the focal customer; (b) The other customer is used as a form of self-evaluation carried out by the focal customer (Gen Z consistently evaluates downward some of the other customers as a way to curate self-esteem and avoid identification with profiles they consider undesirable or unsuitable for their own self-image); and (3) The connection perceivable at international level between brand sustainability as a purchase pre-condition and Gen Z customers is not universal and should be re-evaluated based on local realities. At theoretical level, this study contributes to the advancement of the “other customer” concept; at a practical level, it advocates for the inclusion of an “other customer communication strategy” into the marketing communication mix.