9th Student Research Conference in Marketing (SRCM) - 2025

Permanent URI for this collectionhttp://repository.kln.ac.lk/handle/123456789/29644

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Subject: search.filters.subject.Influencer Credibility

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    Exploring the Impact of Influencers on Brand Trust in Cosmetic Brands: Examining the Mediating Role of Perceived Influencer Credibility and the Moderating Effect of Brand Experience in the Western Province, Sri Lanka
    (Department of Marketing Management, Faculty of Commerce and Management Studies, University of Kelaniya, Sri Lanka., 2025) Senarathne, A. I. U.; Udovita, P. V. M. V. D.
    This study examines the impact of influencers on brand trust in Sri Lanka’s cosmetic industry, focusing on the mediating role of perceived influencer credibility and the moderating effect of brand experience. The research explores how influencer characteristics—expertise, trustworthiness, and attractiveness—shape consumer perceptions, with perceived influencer credibility acting as a bridge to foster trust. Grounded in the Source Credibility Theory and Brand Experience Model, the study addresses gaps in understanding the interplay between influencer attributes, credibility, and brand trust, offering localized insights into effective influencer marketing strategies. A quantitative, cross-sectional research design was adopted under a positivist philosophy. Primary data were collected through a structured questionnaire from 295 respondents in the Western Province, ensuring a diverse and trend-sensitive sample. Descriptive statistics characterized the demographic profile, while inferential analyses, including regression and structural equation modeling, tested hypotheses and explored the relationships between influencers, perceived credibility, brand trust, and brand experience. Ethical considerations such as informed consent and data confidentiality were strictly maintained. The findings confirm that perceived influencer credibility significantly mediates the relationship between influencers and brand trust. Influencer attributes—expertise, trustworthiness, and attractiveness—positively impact consumer confidence in endorsed brands. Additionally, brand experience moderates this relationship, where positive brand experiences enhance the trust-building effect of credible influencers, while negative experiences weaken this effect. These results underscore the importance of combining influencer marketing with strong brand experiences to build lasting consumer trust. The study is geographically limited to Sri Lanka’s Western Province, restricting its generalizability to other regions and industries. The cross-sectional design prevents an analysis of long-term trends in consumer behavior. Furthermore, reliance on self-reported data introduces potential biases, and the exclusive use of quantitative methods limits an in-depth exploration of emotional and psychological aspects of brand trust. Theoretically, this research extends the Source Credibility Theory by emphasizing the mediating role of perceived influencer credibility in trust formation. It also integrates the Brand Experience Model to highlight the moderating influence of experiential factors. Practically, the findings suggest that cosmetic brands should collaborate with influencers who demonstrate strong credibility and alignment with brand values. Additionally, delivering consistent and engaging brand experiences can amplify the effectiveness of influencer endorsements. Future research could explore additional moderating factors, such as cultural influences or technological advancements like virtual influencers, using longitudinal and mixed-method approaches for a deeper understanding of influencer marketing dynamics.
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    Effectiveness of Social Media Influencer Credibility on Brand Loyalty towards Shampoo Brands: Testing the Mediating Effect of Brand Trust among Gen Z
    (Department of Marketing Management, Faculty of Commerce and Management Studies, University of Kelaniya, Sri Lanka., 2025) Fernando, W. P. S. H.; Dissanayake, D. M. R.
    This research investigates how social media influencer credibility impacts on brand loyalty towards shampoo brands testing the mediating impact on brand trust. Aligning to the research gap found with empirical evidence. And the study was aimed at Gen Zs who are tech savvy and are usually getting exposed to social media influencers. This motivation came about because, while an increasing number of businesses use social media influencers to promote their products, little is known regarding how effective this communications strategy is for certain product categories, such as personal care items. Thus, a systemic study was carried out to examine the relationship between brand loyalty and the three main elements that make influencers credible sources. Alongside, level of expertise, reliability, and attractiveness were examined as the inclusion of the credibility of influencers. A quantitative study was employed followed by a deductive approach to address the research questions. Alongside, 385 respondents found within Gen Z, born from 1997 to 2012, were picked through convenient sampling method. The survey was executed to assess the key concepts of social media influencers' perceived trustworthiness, expertise, and attractiveness; brand trust; and brand loyalty. Responses were analyzed by using IBM SPSS software after testing assumptions. The findings of the study reveal that each factor of the credibility of the influencer (namely, trustworthy, expertise, attractive) has a significant positive mediatory effect on brand loyalty. This illustrates the importance of these characteristics in consumer decision-making. According to this study, brand trustworthiness is a determining factor in the effect of influence credibility on brand loyalty. This implies that though the relationship between an influencer's creditability and the brand loyalty is itself strong, the trust toward the brand elevates the relationship to a much greater level. The study also found that brand loyalty might be formed without brand trust. However, if trust and credibility are combined, it will be a more accurate way to establish brand loyalty. These findings have real-world uses for marketers to select and manage influencers to result brand loyalty in the competitive market. However, this study focused on the shampoo industry and Gen Z consumers in Sri Lanka, limiting the generalizability of findings to other products, age groups, or regions. The cross-sectional design restricts analysis of long-term effects, such as sustained brand loyalty or the impact of prolonged influencer marketing. Additionally, the study does not address emerging social media trends or platform-specific dynamics that could influence Gen Z engagement with influencers. Variables like perceived quality and emotional attachment, which may significantly mediate the relationship between influencer credibility and brand loyalty, were not explored. The rapid evolution of social media platforms and the freshness of this research area further limit the applicability of conclusions over time. Future research could address these gaps by examining other mediators, diverse products, and demographics, as well as the long-term effects of influencer marketing on brand loyalty and trust. This study has both theoretical and practical implications. Theoretically, it enhances understanding of the relationship between influencer credibility, brand trust, and loyalty, focusing on Gen Z consumers. By introducing brand trust as a mediating variable, it deepens insights into the role of influencer marketing in shaping consumer loyalty, contributing to frameworks like Source Credibility Theory and Social Influence Theory. Practically, the findings guide marketers in selecting authentic influencers and crafting relevant content to build Gen Z loyalty. Emphasizing trust, credibility, and attractiveness in influencer marketing strategies ensures alignment with brand values and fosters long-term engagement. The study confirmed the importance of trust as a mediator between brand attitude and purchase intentions. Accordingly, future research could examine the impact of influencer’s credibility on other product categories, whilst determining the effect of deference demographic factors within the variable framework.