Promotion of brand-related sustainability initiatives (BSI) is a modern managerial issue, as BSI seems to impact not only sustainability but also consumer psychology toward a brand. In this regard, the author has extended self-congruity theory and suggested the concept of brand-sustainability-self-congruence (BSSC) as the image congruence of the triad comprising brand, BSI, and self-concept. Former surveys report predictive effects of BSSC on consumers’ brand evaluation, leading to increased brand equity (Kumagai, 2022, 2023).

• Ken Kumagai(Mie University, Japan)