ABSTRACT As consumer and regulatory pressures mount, brands are increasingly using digital channels to communicate their sustainability commitments. However, research on sustainable digital marketing (SDM) is still limited, and there is insufficient scholarly understanding of how integrated SDM strategies influence brand reputation and consumer engagement. This study is grounded in a multidimensional framework and defines SDM through key dimensions: transparency, ethical products, social and environmental impact, consumer education, and stakeholder engagement. It tests these dimensions to assess their effects on brand outcomes. Survey data were collected from 1,158 consumers across various geographical regions worldwide, providing a diverse sample to validate the findings. The results reveal significant positive direct effects of four SDM dimensions – transparency, ethical offerings, social impact, and stakeholder engagement – on brand reputation. This reputation, in turn, mediates positive indirect effects on consumer engagement. Interestingly, consumer education initiatives did not have a similar impact on brand reputation, indicating potential challenges in translating knowledge into consumer engagement. Overall, the integrated SDM construct positively predicts both brand reputation and consumer engagement, highlighting a synergistic relationship between sustainability efforts, reputation, and consumer engagement. These insights provide actionable guidance for both academic researchers and industry stakeholders.
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