SUSTAINABLE BRANDING AND CONSUMER LOYALTY IN EMERGING MARKETS: A SYSTEMATIC LITERATURE REVIEW OF BRAND IMAGE, CSR, AND ENVIRONMENTAL COMMUNICATION

Abstract

Sustainability has emerged as a core strategic imperative for multinational firms with multi-dimensional impacts on consumer behavior among emerging markets where cultural beliefs and trust are salient determinants of brand selection. The study investigates the function of sustainable branding in the development of consumer loyalty grounded on a systematic review of 25 peer-reviewed empirical articles published between 2021 and 2026. Guided by the PRISMA 2020 protocol, the review discusses three key aspects of sustainable branding: brand image, environmental communication, and corporate social responsibility (CSR), and their impact on consumer loyalty. The results indicate that incorporating authenticity, transparency, and cultural relevance within programs for sustainability greatly enhances emotional involvement and consumer loyalty. Moreover, joint programs with all three components are found to trigger greater and more long-term loyalty in comparison to standalone programs. The research presents a signalling and brand equity theory-driven conceptual framework and demonstrates the ability of sustainability to be a source of competitive advantage as well as a relationship builder. The implications of such findings present actionable insights for organizations trying to balance brand strategies and sustainability initiatives and inform policymakers who aim to promote value-based consumerism practices in developing markets.