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.     

An exploration of celebrity business ventures and their appeal to fans and non-fans

Recently, an increasing number of celebrities have launched their own businesses. Although celebrity entrepreneurs may expect their credibility to enhance customers’ purchase intentions, this study does not find this effect. Instead, it finds that customers’ purchase intentions rely mainly on customers’ attitudes toward the celebrity's venture brand. Customers’ perceived congruence between a celebrity and the celebrity's business significantly affects their brand attitudes. Additionally, this study finds that a celebrity's credibility can only increase fans’ positive attitudes toward the celebrity's venture brand; therefore, being a celebrity entrepreneur is riskier than being a brand endorser in terms of consumer attitude.     

Determinants for Effects of Celebrity Negative Information: When to Terminate a Relationship with a Celebrity Endorser in Trouble?

This study examines three factors that influence consumers’ brand evaluation and purchase intention under negative celebrity information. The study is designed to investigate the effects of consumers’ perceived associative strength between celebrity endorser and brand, the role of congruence between a celebrity endorser's negative information and his/her endorsed brand, and the effects of consumers’ level of brand commitment. The study's findings suggest that congruence or “fit” between a celebrity endorser's negative information and an endorsed brand moderates a consumers’ evaluation of brand and purchase intentions. The study finds that a strong associative link between the brand and the celebrity endorser leads to lower brand evaluation as well as lower purchase intention. It also finds that consumers with a higher level of brand commitment are less likely to react negatively to a celebrity's bad publicity than are consumers with a lower level of brand commitment. Theoretical and practical implications are discussed.     

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.     

The role of influencer–follower congruence in the relationship between influencer marketing and purchase behaviour

Over the last decade, influencer marketing has become one of the most important tools for companies and brands to increase awareness, sales, or image strength. Since consumers prefer brands and companies whose image is congruent with their actual or ideal self, we could expect that consumers tend to prefer influencers whom they can compare themselves with. Therefore, congruence between consumer and influencer is imperative in influencer marketing and may indicate whether the influencer will be able to promote products to the target audience in an appealing way. Using a quantitative empirical study, we surveyed more than 7500 individuals measuring how they perceive a specific influencer's credibility, content usefulness, congruence, and purchase behaviour. The results suggest that if there is a congruence between an influencer and the follower, the impact of the influencer's experience and its content usefulness on purchase behaviour is stronger.     

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.     

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.     

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.     

Beyond brand attitude: Individual drivers of purchase for symbolic cobranded products

Cobranding, or the use of two brand names on a single product, generally coincides with higher purchase intentions. Prior research focuses on ingredient co-branding and suggests that attitude toward both the primary and the secondary brands and congruence between the brands are important drivers of cobranded products' success. This research shows that self-congruity with the secondary brand and need for uniqueness have significant positive impacts on symbolic co-branding purchase, in addition to perceived congruence and attitude toward the primary brand. In contrast, attitude toward the secondary brand does not relate to purchase of symbolic cobranded products. Therefore, managers should rely on self-congruity, instead of attitude toward the secondary brand, when choosing a partner for symbolic cobranded products. Moreover, product category involvement enhances the impact of self-congruity on purchase intent.     

The effects of the visual presentation of an Influencer's Extroversion on perceived credibility and purchase intentions—moderated by personality matching with the audience

Influencers are ordinary individuals who have amassed large followings by demonstrating expertise in various niches on social media sites. We aim to propose (1) the visual presentation of an Influencer's extroversion as an antecedent to source credibility and purchase intentions and (2) personality matching in terms of extroversion between an Influencer and their audience as a moderator of such relationships. We chose the source credibility model and the similarity-attraction model as our theoretical frameworks. In our controlled online experiment (n = 165), the profile of a brand ambassador of a fashion brand was curated to create two levels of extroversion (i.e. low vs. high extroversion). Participants' self-reported extroversion levels were counterbalanced in these two conditions to create a personality match with the Influencer, entitled “extroversion congruence.” Our results suggest that the visual presentation of an Influencer's extroversion increases the perceived credibility of the Influencer and subsequent purchase intentions. Additionally, our findings show that these relationships were asymmetrically moderated by extroversion congruence: the positive effects of extroversion increase in the case of high extroversion among both the Influencer and their audience but decrease in the case of low extroversion.     

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.     

Influencer marketing: Homophily,customer value co-creation behaviour and purchase intention

Given the rise in influencer marketing on social media, this paper explores how homophily between influencers and their audiences affects customer value co-creation behaviour, resulting in increased expected brand value and purchase intention. A sample of 910 respondents from the United States completed an online investigation. The results indicate that homophily positively influences customer value co-creation behaviour as well as positively correlates with expected brand value and purchase intention. Customer value co-creation behaviour plays a multi-mediating role. Para-social relationship moderates the relationship between homophily and customer participation behaviour. Overall, this study encourages further research on value co-creation in influencer marketing and can constitute a valuable reference for marketing practitioners and influencers.     

How does consumers' Perception of Sports Stars' Personal Brand Promote Consumers’ brand love? A mediation model of global brand equity

Previous research on the sports marketing of global brands has focused mainly on the sponsorship of sporting events and the endorsement of products by athletes. This study reveals the unexamined effect of the impact of sports stars' personal brand on global brand equity and consumers' brand love. Based on global consumer culture (GCC) theory and self-expansion theory, this paper examines the influence of sports celebrities' personal brand on consumers' perceptions of global brand equity and brand love. Using survey data from 372 users of “HUPU”, our results revealed that the use of sports stars' personal brand (attractiveness, expertise, and congruence) was positively related to global brand equity and brand love. Belief in global brand citizenship has a full mediating effect between attractiveness and brand love but a partial mediating effect between expertise, congruence and brand love. Product quality partially mediates the relationship between expertise and brand love. These findings suggest that it is appropriate to use sports stars' personal brand to build global brand equity and increase consumers’ brand love.     

The effects of influencer type,regulatory focus,and perceived authenticity on consumers' purchase intention

Companies often use influencers to promote their products, and many celebrities have expanded their activities on social media as influencers. In this work, we classified influencers into celebrity and noncelebrity groups and analyzed how they affect consumers' purchase intention. We also analyzed how psychological variables, such as regulatory focus and perceived authenticity affect this process. We conducted three studies with consumers in China, South Korea, and the United States who participated in each between-subjects experiment. The results showed that people have higher purchase intention for products recommended by noncelebrity influencers than those recommended by celebrity influencers. We also found that regulatory focus moderates the relationship between the influencer type and consumers' purchase intention. Purchase intention for products recommended by noncelebrity influencers were stronger among prevention-focused consumers. However, no significant difference in the effect of influencer type was found among promotion-focused consumers. We found that perceived authenticity mediated this moderating effect. The results of this study provide effective marketing strategies and implications for companies when they use influencers as a tool for marketing activities.     

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.     

Effects of in-store live stream on consumers’ offline purchase intention

Live stream marketing through social media has attracted the attention of digital retailing marketers in recent years. However, there is a lack of evidence in understanding the influence of in-store live stream on offline purchase intentions. This study aimed to investigate the influence patterns of environmental stimuli on consumers' intention to purchase offline/in-store after watching an in-store live stream session. The Stimuli-Organism-Response (SOR) model was employed as the theoretical framework, and a structured questionnaire was used to collect data from individuals who had previous experience with in-store live stream marketing. Structural equation modelling was then applied for data analysis, with a total of 234 valid responses. The findings revealed that environmental stimuli have a significant positive effect on consumers' intentions to make in-store purchases, and the attitudes towards influencers and products substantially mediate the relationship between stimuli and purchase intention. More specifically, consumer attitude towards products has a pronounced effect on whether they will make an in-store purchase. The novelty of this research lies in its investigation of the impact that live stream marketing has on offline or in-store shopping experiences. This contrasts with the majority of existing live stream studies, which focus on consumers’ online shopping experiences. In addition, this study broadens the scope of the application of the SOR model to contribute to the growing body of literature on live stream marketing.     

Response to social media influencers: Consumer dispositions as drivers

Brand managers use social media influencers (SMIs) to influence consumers' attitudes and intentions. However, there is still ambiguity about the mechanisms by which SMIs influence their followers, as well as the metrics by which their performance can be evaluated. The existing literature has restricted itself to consumers' purchase intentions in order to evaluate SMIs influence and is silent on the role of the consumers' individual characteristics in SMIs influence mechanisms. Based on these research gaps and to provide a clearer picture of the SMI influence mechanism to practitioners, the present study assesses the role of consumer characteristics such as their social media attachment (SMA), parasocial relationships with social media influencer (PSR-SMIs), and susceptibility to SMIs influence (SSMII) in driving consumer response to SMIs influence through SMI compliance intentions. Study 1 found the sequential mediational role of PSR-SMIs and SSMII in the SMA-SMI compliance intentions relationship. Study 2 found the same sequential mediation and demonstrated how SMI skepticism negatively moderates the relationship between PSR-SMIs and SMI compliance intentions. To the best of the authors' knowledge, this is the first time that this skepticism variable is being explored in the SMI literature.     

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.     

The Effects of Ad Irritation on Brand Attitudes

Abstract

Brand attitude has been proposed to be an antecedent to purchase intentions. However, very few studies have specifically focused on ad irritation as an antecedent to attitude towards the brand. This paper examines the effect of ad irritation on brand attitudes and if the effect of ad irritation is independent of ad credibility, attitude towards the advertiser, attitude towards advertising, and ad-induced feelings. The results indicated that ad irritation was not significant in predicting brand attitudes. Respondents' prior brand attitude, ad credibility, ad-induced feelings and attitude towards the advertiser were significant predictors of brand attitudes. Based on the results, several managerial implications were derived regarding the usefulness of ad irritation in changing brand attitudes.     

Social media influencers: The formation and effects of affective factors during online interactions

Social media influencers emerged as powerful sources in affecting and guiding consumers' purchase decisions through self-generated content and online interactions with their followers. A large number of studies have so far focused on cognitive aspects such as perceived credibility, trustworthiness, and expertise of these influencers. This study aims to further advance the existing literature on social media influencer marketing from an affective perspective, with a focus on the emotional bonds generated by online interactions between the influencer and their followers. Based on the interpersonal process model of intimacy and theories in celebrity endorsement and social media influencer marketing, it examines the impact of self-disclosure and perceived responsiveness on familiarity and intimacy, which, in turn, affect purchase decision. An online survey was conducted with 304 social media users in Mainland China who have followed social media influencers. The results highlight the formation of two affective factors, namely, familiarity and intimacy, via self-disclosure and perceived responsiveness. Theoretically, this study provides a fresh perspective to better understand the endorser effect outside the regular set of cognitive factors. Marketing practitioners and companies can follow the suggestions of this study to select more effective social media influencers for their marketing campaign, and to build closer relationships with their target customers.