This paper investigates the impact of social media influencer endorsements on purchase intention, more specifically, the impact advertising disclosure and source credibility have in this process. The proposed framework argues that advertising disclosure has a significant impact on source credibility subdimensions of attractiveness, trustworthiness and expertise; subdimensions that positively influence consumer purchase intention. Empirical findings based on 306 German Instagram users between 18 and 34 years of age reveal that source attractiveness, source trustworthiness and source expertise significantly increase consumer purchase intention; whilst advertising disclosure indirectly influences consumer purchase intention by influencing source attractiveness. Furthermore, the results reveal that the number of followers positively influences source attractiveness, source trustworthiness as well as purchase intention. All in all, this paper makes a unique contribution to product endorsement literature, with evidence highlighting how social media influencers and advertising disclosure may be used on Instagram to effectively increase consumer purchase intention.
Customer relationship management is a continually evolving domain that has been particularly affected by social media, which have revolutionised the way businesses and consumers interact. This paper on social CRM builds on a previous model of CRM prior to the growth of social media ( Jayachandran et al., 2005 ). We present a new model for social CRM, including a new construct of customer engagement initiatives and adaptations of other constructs to cater for the impact of social media. An online survey was used to collect data from a population of marketing practitioners and partial least squares analysis was used to test the model. Findings show the importance of an underlying customer relationship orientation; how it impacts on social media technology use and customer engagement initiatives, and also directly on customer relationship performance. A relationship is also shown between engagement and relational information processes, which is viewed as a performance outcome of social CRM. Thus, from a managerial perspective, one recommendation we make is that organisations should utilise the rich customer information that is created with every customer engagement through social media to drive future marketing decisions.
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