The relationship between celebrities’ credibility and advertising effectiveness The mediation role of religiosity

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Mansour, Ilham Hassan F.
Diab, Dalia Mohammed Elzubier
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University of Khartoum
Purpose – The purpose of this study is twofold, frst, the study aimed at investigating the impact of celebrities’ credibility on advertising effectiveness by examining the celebrity attributes that are likely to influence consumer attitude towards celebrity-endorsed TV advertising and their purchase behaviour. Second, the study seeks to identify the mediating role of religiosity on consumers’ attitudes towards celebrity-endorsed television advertising and buying behaviour. Design/methodology/approach – The study is based on a survey questionnaire in a sample of 370 Sudanese customers on their attitude towards the celebrity endorsement of television advertising. Findings – The study found that celebrities’ likeability and their attractiveness have the greatest impact on both consumers Attitude and their purchase behaviour. The study also confrms that religiosity partially mediate both the relationships between celebrities’ credibility and the attitude towards the advertisement and purchase behaviour and revealed that religiosity correlates negatively with celebrities’ credibility and attitude towards advertisement. Research limitations/implications – However, the study has some limitations, as it investigates the effectiveness of celebrities’ endorsement in TV commercials only. Future research could be extended to investigate the effectiveness of using celebrities advertising on other different media such as radio, printed and outdoors media. Further, the study uses a scale based on the Islamic practice dimensions, and using a more comprehensive scale to measure religiosity based on both belief and practices may be a further extension. Practical implications – These results have important implications for advertising practitioners and business enterprises in Sudan, and other similar communities. They provide guidance in the sense that religiosity should be weighed in and given high importance when using celebrities in advertising campaigns and that the advertisement contents should be compliant with the Islamic law (Shariah). Social implications – Understanding how religious beliefs influence the attitude towards the advertising is of great importance to international advertisers to improve advertising effectiveness without offending their Muslim audience. The study enriches the literature on the religiosity and its influence on the consumer behaviour, particularly in the celebrity-endorsed advertisements. Originality/value – To the best of the authors knowledge, this study is the frst study of its kind in Sudan to explore the impact of celebrities’ endorsement on consumers attitude and buying behaviour and provide empirical evidence to verify the existence of a mediating role of religiosity on both the attitude and purchase behaviour in the Sudanese context. It provides an understanding of Sudanese The current issue and full text archive of this journal is available on Emerald Insight at: JIMA 7,2 148 Received 6 May 2013 Revised 2 September 2013 14 May 2014 27 October 2014 29 October 2014 Accepted 30 October 2014 Journal of Islamic Marketing Vol. 7 No. 2, 2016 pp. 148-166 © Emerald Group Publishing Limited 1759-0833 DOI 10.1108/JIMA-05-2013-0036attitudes and purchase decision, as Muslims, and thus provides practitioners with guidelines on how to design celebrity-endorsed TV advertisements to influence consumers’ attitude and buying behaviour
Islamic business ethics; Advertisements and promotions; Islamic marketing; Islamic market segmentation; The Muslim consumer; Advertising effectiveness