The Stadium of Validation
An influence model developed by Marc Perelló-Sobrepere in ¿Me lo compro? (Libros de Cabecera, 2026). It places the consumer within a social environment whose members can validate, question or inhibit a purchase—even when they are not buyers of the brand themselves.
Beyond the buyer persona
A buyer persona helps describe the person a brand wants to reach: their needs, motivations and circumstances. The Stadium of Validation adds a relational perspective: who surrounds that person, whose judgement matters, and how their influence can support or obstruct the decision. It complements the buyer persona rather than replacing it.
The sports-stadium metaphor organises this environment into three rings. These are groups of relationships, not sequential stages in a funnel. Influence may operate before, during or after the purchase, through emotional trust, shared identity or public visibility.
01 · Inner ring: emotional trust
Family, partners, children and close friends occupy the inner ring. Their opinions carry weight because of the relationship, not necessarily because of product expertise. This intimate circle can act as a final trust filter: a casual comment may reassure the consumer or halt a purchase that already seemed settled.
02 · Peer ring: belonging and identity
Acquaintances, colleagues, communities and tribes share codes and reference points without the intimacy of the inner circle. They work as a social mirror: beyond asking whether a product works, the consumer considers whether it fits the identity they want to express. Acceptance and belonging help explain this ring’s influence.
03 · Extended ring: cultural legitimacy
Opinion leaders, celebrities and content creators may have no personal relationship with the consumer. Their repeated public presence nevertheless helps establish which behaviours, styles and brands appear desirable or accepted. Influence here operates through reputation and visibility rather than direct personal contact.
From consumer profile to influence analysis
Begin with the consumer or buyer persona and identify the relevant people in each ring. Examine what kind of reassurance, objection or social meaning each relationship brings to the purchase. Use that analysis to adapt brand messages for the surrounding environment, not only the buyer. The rings structure the enquiry; they do not assign a universal numerical weight to each person.
For marketing teams and agencies, the model provides a visual framework for campaign discussion and client presentations. In teaching, students can map a real case and explore how each ring relates to branding, storytelling or institutional communication. Any case exercise should distinguish observed evidence from assumptions about influence.