Judging a book by its cover? The role of unconventional appearance on social media influencers effectiveness

Social media influencers (SMI) have gained undeniable importance as brands endorsers. However, although their credibility can be affected by the way they look, no known studies have applied appearance stereotypes to SMI's perceived attractiveness, trustworthiness, and expertise, particularly when that appearance is unconventional (e.g., use of body tattoos). Therefore, building on extant endorsement research and the Stereotype Content Model (SCM), the study examines how the use of tattoos impacts SMI's credibility, attractiveness, and effectiveness. Based on a sample of 260 young adults, a 2 x 2 x 2 (SMI gender x tattoo x domain) experimental design was conducted. Results indicate a tattoo premium effect, regardless of SMI's domain. By extending the SCM framework to the influencer marketing literature, this study contributes to both research fields, while providing valuable insights to brands and SMI.     

Persuasive cues and reciprocal behaviors in influencer-follower relationships: The mediating role of influencer defense

In today's internet ecosystem, social media influencers serve a central purpose in the creation of a compelling online presence that engages their followers. This study examines the impact of social attractiveness, physical attractiveness, attitude homophily, actual self-congruity, and parasocial interactivity on influencer defense and purchase intention in the context of beauty influencers. A total of 689 respondents were recruited using Sina Weibo, one of the largest social media platforms in China. The results demonstrate that physical attractiveness, attitude homophily, actual self-congruity, and parasocial interactivity are crucial in affecting influencer defense. However, only attitude homophily, actual self-congruity, and parasocial interactivity emerged as significant predictors of purchase intention. The findings afford insights that can further understanding of the influencer-follower relationship in the social media environment.     

How,why, and when disclosure type matters for influencer marketing

Consumers’ changing media consumption behaviors and skepticism toward traditional forms of advertising have prompted the growth of influencer marketing. Even as regulatory authorities call on brands and influencers to disclose the posts as advertising, no consistent guidelines exist. The distinct effects of self-generated versus platform-initiated disclosures also remain unclear, nor has research addressed the interplay of key influencer characteristics and marketing disclosures. This article reports on findings from the first academic field study of influencer marketing disclosures, as well as three experimental studies, which indicate that disclosure is a double-edged sword. When provided through a platform-initiated branded content tool, disclosure consistently exerts the strongest effect on perceptions of advertising, negatively relating to influencer trustworthiness and consumer engagement. The effects of disclosure type also depend on the number of followers and number of previously endorsed products (i.e., influencer characteristics). Yet, consumers also express appreciation for transparency when influencers disclose posts as advertising, which increases perceived trustworthiness of the influencer and engagement with the post. The implications of these findings should inform choices by public policy makers, brand managers, and influencers.     

Building influencers' credibility on Instagram: Effects on followers’ attitudes and behavioral responses toward the influencer

Collaborations between influencers and brands have become increasingly popular in recent years. Previous research has mainly focused on influencer marketing as a commercial action designed to enhance followers' perceptions and reactions toward promoted brands, ignoring the consequences of these promotional actions on influencers' credibility and their relationships with their followers. This research sheds light on the topic by exploring how influencers' promotional actions affect their credibility, and followers' attitudes and behavioral responses toward the influencer (i.e., to continue following, imitate, and recommend them to other users). A study addressed to the followers of a popular influencer was carried out to test the research model. The results showed that perceived influencer-product congruence positively affects followers' perceptions of the credibility of, and attitude toward, influencers, and negatively affects perceptions of paid communication. Followers' perceptions that influencers have been paid to take part in promotional activities harms their credibility; however, credibility is essential for generating positive attitudes toward the influencer. Finally, both perceived credibility and attitude foster positive behavioral responses toward the influencer; influencers must enhance these factors to retain their influencing capacity. This research provides managerial implications for influencers and brands that can help enhance followers’ experiences when exposed to promotions on social media.     

Followers' engagement with instagram influencers: The role of influencers’ content and engagement strategy

Influencer marketing has emerged as an effective approach for brands to connect with customers through social media influencers. Although influencer marketing has attracted increased interest from marketing researchers in recent years, relatively little is known about influencers' content and engagement strategy and its links to followers' engagement behavior. The present study addresses this gap by examining how measures of influencers' content and engagement strategy (i.e., follower count, followee count, content volume, and domains of interest) are associated with followers' engagement behavior on Instagram both independently and interactively. The study leverages a unique dataset of Instagram influencers compiled by scraping an online influencer database to test its hypotheses. The findings indicate that follower count and content volume are negatively associated with follower engagement, while followee count is positively associated with follower engagement. However, these main effects are modified by influencers' domains of interest. The findings contribute to the literature by illuminating how elements of influencers' content and engagement strategy contribute to followers’ engagement behavior on Instagram.     

Instagram and YouTube bloggers promote it,why should I buy? How credibility and parasocial interaction influence purchase intentions

Nowadays social network influencers play an important role in marketing by introducing products to their audience. In this article, we investigate the persuasion cues related to beauty and fashion influencers present on YouTube and Instagram. More precisely, we investigate how the para-social interaction (PSI) the audience creates with the online influencer, along with their perceived credibility, are related to the purchase intention and how they are, in turn, related to the social and physical attractiveness and attitude homophily. We base our research on four beauty influencers popular in France and control our results by the age of the participants and by the influencer. We find that attitude homophily is positively related to PSI but, surprisingly, the physical attractiveness shows negative relationship or no evidence of relationship. Both credibility of the influencers and PSI exhibit significant and positive relationships to purchase intention.     

Antecedents and outcomes of digital influencer endorsement: An exploratory study

The advertising and marketing literature have established that celebrity endorsements constitute an effective way to enhance attitudes toward brands and increase purchase intents. However, there are no relevant studies on digital influencers. This study addresses the research gap by examining the effect of digital influencers' attractiveness and the effect of the congruence between a digital influencer and a brand on consumer attitudes and purchase intentions. By applying structural equation modeling to a sample of 307 followers of digital influencers, a model was tested and group analysis was performed for two categories (“entertainment & video games” and “fashion & beauty”). The results show that both brand attitudes and purchase intentions are influenced by the digital influencer's attractiveness (which includes both likeability and familiarity) and by the congruence between the digital influencer and the brand. This study makes several contributions to both theory and practice, which are highlighted in this paper.     

Effective influencer marketing: A social identity perspective

Social networking in the form of online communities and social groups is a characteristic of social media communication that has profound implications on the identity dynamics and behavior of social media users. Drawing from social identity theory, this research brings the social identity construct (i.e., followers' perception of the self in relation to the influencer community) to the literature on influencer marketing and examines the effect of followers' social identity, along with their interest fit and the influencer's opinion leadership, on their purchase intention. This research also examines the moderating role of storytelling, a pervasive approach of social media influencers, in enhancing the social identity–purchase intention link. Empirical results from 467 Instagram users show that all three factors positively impact followers' intention, but social identity has a more salient effect than the others. Storytelling posts can enhance these effects. Studying influencer marketing through the social identity angle contributes to better understanding of influencer marketing effectiveness.     

Influencer marketing: When and why gen Z consumers avoid influencers and endorsed brands

Consumer avoidance of brands and influencers is a widespread phenomenon, especially among Generation Z (Gen Z); however, influencer marketing literature lacks clarity about when and why Gen Z engages in such avoidance. Our experimental investigation, across four studies, reveals that Gen Z considers brands' control over influencers to be morally irresponsible and, thus, avoids both. We introduce a novel construct, influencer avoidance, and examine its drivers. Study 1 indicates that perceived brand control engenders avoidance; moderation evidence shows that macro (vs. micro) influencers accentuate (attenuate) the influence of brand control on avoidance. Study 2 shows that Gen Z enjoying a strong versus weak relationship with influencers results in lower (higher) avoidance towards influencers and endorsed brands. Study 3 demonstrates that negative moral emotions mediate the relationship between perceived brand control and avoidance behavior. Study 4 generalizes the findings by analyzing a different influencer and endorsed brand and including a prominent advertisement disclosure. By investigating the drivers and mechanisms of Gen Z's avoidance behavior, our research contributes to research on the theory of moral responsibility, Gen Z's influencer avoidance behavior, and anti-consumption literature. This offers key insights into how to prevent acts of consumer retribution towards influencers and brands.     

Virtual influencers as an emerging marketing theory: A systematic literature review

Over the past few years, the popularity of influencers on social media (SM) has increased, and influencer marketing has become an important element in companies' marketing strategies. This has resulted in significant interest from researchers and practitioners; consequently, the number of publications devoted to the topic of influencers and influencer marketing has risen. Simultaneously, computer-generated avatars and virtual influencers (VIs), including those using artificial intelligence (AI) and machine learning, have begun to emerge and gain popularity in the SM space. Thus far, research on these topics has been limited, with few studies examining the issue from different perspectives. Given the growing potential of VIs' inclusion in the consumer decision-making process, and this being a developing field, a comprehensive and critical review of existing research on this subject is urgently needed. In response, this study consolidates the current state of research on virtual, AI, and computer-generated influencers. A systematic review of peer-reviewed articles was conducted to identify key themes and dominant concepts. An analysis of 35 articles provides an understanding of this phenomenon, shedding light on the mechanisms underlying the appeal of VIs and their role in shaping consumer attitudes and behaviors. Based on the analysis, the main thematic streams from the study are presented. Further, research gaps have been identified, and recommendations made for future research directions.     

Is beauty always good? Effects of visual presentation of Influencer’s aesthetic labor on brand purchase intention

Aesthetic labor plays a crucial role in social media influencer marketing. Based on the theories of aesthetic labor and social media influencers, this study aims to identify the psychological mechanism and boundary conditions of the effects of visual presentation of influencers’ aesthetic labor on consumers’ brand purchase intention. The results of five studies indicate that the visual presentation of influencers’ aesthetic labor and consumers’ regulatory focus have an interactive effect on brand purchase intention. Specifically, promotion-focused consumers (vs. prevention-focused consumers) are more willing to purchase brands endorsed by influencers with a high-level (vs. low-level) visual presentation of aesthetic labor through para-social relationships. Furthermore, the homophily between influencers and consumers moderates this interaction effect. These findings have significant managerial implications for influencers and other retailing marketers to leverage aesthetic labor to win consumers’ purchase intention towards related brands.     

The impact of influencers' multi-SNS use on followers’ behavioral intentions: An integration of cue consistency theory and social identity theory

The considerable marketing potential brought by the rapid growth of social media has been extensively examined in the literature, particularly in terms of the impact of influencers' recommendations on their followers' decisions. However, little attention has been given to how the individual influencers' use of multiple social networking sites affects their followers' behavioral intentions. Hence, this academic gap warrants further exploration. Drawing on cue consistency theory, social identity theory, and stimulus-organism-response framework, this research proposes three research questions and constructs an integrated research model to explore how the influencers' cue consistency affects the social identification of their followers, subsequently influencing their behavioral intentions. A structural equation modeling technique is performed to analyze the data of 510 valid respondents. The findings show that influencers' consistent cues (i.e., information and image consistency) across social media have positive impacts on followers' cognitive and affective identification toward the influencers. Furthermore, the determinants for followers' purchase intention and electronic word-of-mouth intention are affirmed to serve as both cognitive and affective identification. Especially, the results indicate that the relationships between followers’ social identifications and behavioral intentions are moderated by the type of influencer (i.e., lifestyle vs. review). Accordingly, the results indicate how the use of multiple social networking sites by influencers impacts the behavioral intentions of their followers. The findings offer new insights into influencer marketing and provide important lessons for marketers.     

Influencers' “organic” persuasion through electronic word of mouth: A case of sincerity over brains and beauty

Despite the growing importance of influencers' word-of-mouth through audiovisual content, little is known about its effect on consumers' brand evaluation, purchase intentions, and decisions. Drawing on Ohanian's source credibility framework, we conducted two studies across different influencers, product categories, and respondents' gender and tested the hypotheses using covariance-based and partial least square structural equation modeling. Study 1 focuses on a mega-influencer of cosmetic and beauty brands and predominantly involves female respondents. The findings show that the influencer's attractiveness affects perceptions about source expertise and source trustworthiness but not brand attitude, while source expertise predicts source trustworthiness, and both mediate the effect of source attractiveness on brand attitude. In contrast, brand attitude predicts purchase intention and mediates the impact of source credibility dimensions. Study 2 focuses on various influencers of hedonic products (lifestyle, fashion, and beauty). The results confirm the influence of source attractiveness and expertise on source trustworthiness, which ultimately predicts consumer purchase decisions. This study reveals the interdependencies between different source constructs, contributing to source credibility theory. Furthermore, we show that the effect of source dimensions that are relevant in the celebrity endorsement literature, such as source attractiveness, do not directly influence consumers' intentions and decisions in the context of influencers' electronic word of mouth. Finally, the two studies confirm that only influencers perceived as honest and sincere can influence consumers' purchase decisions.     

Can you sense without being human? Comparing virtual and human influencers endorsement effectiveness

As AI increasingly permeates digital spaces, virtual influencers are operating in similar ways as human influencers. However, given their recent introduction, the effectiveness of virtual influencers is unclear, and there is limited managerial guidance regarding when and how they should be used. Across four studies, including an empirical investigation using secondary data analysis and three scenario-based experiments spanning two cultural contexts, we find that virtual influencers are less effective than human influencers as endorsers in terms of brand attitude and purchase intention. Furthermore, we identify perceived sensory capability and credibility as the serial mechanism. Lastly, we introduce the salience of sensory cues within the ad as a theoretically important and managerially relevant moderator, which attenuates the negative effect of virtual influencers. This research extends virtual influencer literature by focusing on business-related outcomes. Our theoretical model highlights essential differences in advertising outcomes between human and virtual influencers and provides important managerial implications.     

International Advertising Strategies by NIC Multinationals: The Case of a Korean Firm

Managers of new brands seek to leverage positive WOM and establish a critical mass of consumers who interact with their brands on social network sites (SNSs). Effective selection of ‘seeds’, or influencers, on SNSs, who will recommend the product and leverage the power of their social networks to influence other consumers is key to organic growth. This research examines the role of an influencer’s activity on a social network website (network size, membership duration, share-of-posts), brand message source (marketergenerated versus member-generated), and recipient type (SNS member versus nonmember) on an influencer’s decision to recommend a new brand and the recipient’s decision to make a referral visit. Empirical analyses of clickstream data from SNSs at a commercial website show that marketer- and consumer-generated brand ads differ in their impact on recommending propensity for high share-of-posts and long-term influencers, and for member and non-member recipients, which has implications for referral management.     

Disclosure of Vlog Advertising Targeted to Children

Influencers can disclose vlog advertising by implementing a platform-generated disclosure or by generating their own disclosure. This study aims to investigate whether and how these two types of disclosures differentially affect children's responses toward the sponsored content and the influencer. To do so, a two (platform-generated [PG] disclosure: no PG disclosure versus PG disclosure) by three (influencer-generated [IG] disclosure: no IG disclosure versus no commercial interference disclosure versus commercial interference disclosure) between-subjects experimental study was conducted among 190 children (aged ten to twelve). The results show that both types of disclosures increased children's recognition of vlog advertising; however, children's advertising literacy (i.e. their understanding of influencer marketing and skepticism toward the ad) was less activated when the influencer specifically indicated that there was no commercial interference of the brand. In addition, besides being more beneficial for influencers (by not negatively affecting children's evaluations of the influencer), an IG disclosure also showed to be more favorable for brands, as it increased brand effects among children, whereas a PG disclosure decreased these brand effects.     

Opinion leadership vs. para-social relationship: Key factors in influencer marketing

The literature on influencer marketing has identified opinion leadership of influencers and parasocial relationship with influencers as two focal constructs affecting followers' purchase intention; yet they are only studied in isolation. This research aims to provide a comprehensive understanding of the effects of the two key constructs by combining and comparing them in a model with the moderators of post characteristics, namely post type and correspondent inference. Empirical results from 409 online followers of two Instagram accounts confirm the complementary effects of opinion leadership and parasocial relationship in influencer marketing and reveal the more prominent role of parasocial relationship over opinion leadership in affecting followers’ purchase intention. These effects are moderated by post characteristics. Storytelling posts intensify both effects. Correspondent inference enhances the effect of parasocial relationship, but not that of opinion leadership. These findings point to the importance of the social aspect of influencer marketing and inform the influencer marketing research and practice on “who says what” for improving communication effectiveness.     

Managing the tensions in marketer-influencer relationships

The use of influencers in marketing is not new. However, the advent of the internet and, more recently, various forms of social media have both accelerated the use of influencers in marketing and also democratized its use considerably. In this article, we explore the nature of influence and power. We describe a study directed at understanding the promises and perils of influencer marketing from both the firm- and influencer perspectives to identify three key tensions that exist for marketers in the management of influencer relationships. We outline and explain these tensions and the lessons that can be learned from them, and then illustrate the lessons with a series of positive and negative cases. We close by speculating on the further evolution of influencer marketing.     

Empathy with influencers? The impact of the sensory advertising experience on user behavioral responses

Short-form video influencer advertising offers new opportunities for user sensory experience to promote advertising effectiveness and induce positive user responses. This unique means of influencer-generated advertising via short-form videos has not yet been investigated. This study builds on the reciprocity norm of social exchange theory to investigate relationships among ad sensory stimuli (i.e., the sensory advertising experience), the efficacy of influencer advertising (i.e., empathy and altruistic motive), and user behavioral responses (i.e., ad avoidance intention, ad engagement, and purchase intention). It also seeks to shed light on the critical role of perceived influencer effort in these relationships. An empirical study using data from TikTok (Douyin) users and results indicate that sensory advertising experience positively affects user behavioral responses through the serial mediation of empathy and altruistic motive. Additionally, perceived influencer effort is found to be a crucial moderator of the effect of sensory advertising experience on user empathy, which further influences user behavioral responses. The findings provide insight into the persuasion effect and mechanism of short-form video influencer advertising and offer suggestions for advertising campaign designers.     

国内网红经济与国外影响者营销的联系与区别——基于对于概念的比较和考察

当下国内网红经济与国外影响者营销的实践发展日新月异,但相关理论发展远远滞后,且两者作为两个独立的体系各自发展,双方的交流对话严重不足,从而成为制约这一领域学术发展的瓶颈。同时,国内网红研究多参考外国理论和先行研究进行解释和模型构建,而少有本土独创性理论,也少有研究深入讨论,中国的网红和外国的社交媒体影响者(SMIs)、网红经济和影响者营销(IM)是否在概念上等价。同时当下网红经济的关注焦点聚集在直播营销领域,也少有研究系统考察两者的联系和区别。对此,本文研究在哲学对概念内涵与外延理解的指导下,建立先行文献数据库并系统地对中国的网红与网红经济、中国的网红与国外的社交媒体影响者,中国的网红经济与直播营销、中国的网红经济和国外的影响者营销的概念进行梳理,并找出他们的区别和联系。并在此基础上探讨国外的理论在哪些方面是可以借用的,在哪些方面急需中国自己的理论构建,以期为未来的理论发展提供一定参考。