Celebrity endorsements: a literature review and research agenda

This paper presents a narrative review of celebrity endorsement research. The review identifies six areas of research on celebrity endorsements (celebrity prevalence, campaign management, financial effects, celebrity persuasion, non-evaluative meaning transfer, and brand-to-celebrity transfer). A review of the research in each area identifies key findings, conflicting results, and research gaps. In addition, this paper reviews the celebrity endorsement literature with a focus on the psychological processes underlying celebrity endorsement effects that has been put forward in the literature. Based on the review an agenda for future research is offered.     

Celebrity endorsements,self-brand connection and relationship quality

The extant literature on celebrity endorsement effects largely focuses on the endorsement effects on consumer evaluations of the endorsed brand. The current study extends the literature by assessing the impact of endorser credibility on two consumer–brand relationship-oriented outcomes – brand relationship quality and consumer self-brand connections. Additionally, the self-brand connection is positioned as a partial mediator of the effect of endorser credibility on relationship quality. A conceptual model is developed and estimated on a sample of 535 Generation Y (youth) consumers from India. The hypotheses are supported and the model demonstrates acceptable fit to the data. Overall, the present study introduces a relationship-building perspective to the celebrity endorsement literature. The results suggest that celebrity endorsers possess the ability to provide meaningful self-definitional benefits to consumers as well as cultivate enhanced relationship quality with the endorsed brands, thus contributing novel insights into celebrity endorsement dynamics.     

Celebrity Endorsement for Nonprofit Organizations: The Role of Celebrity Motive Attribution and Spontaneous Judgment of Celebrity-Cause Incongruence

This study investigated relationships among celebrity motive attribution, celebrity-cause congruence, and involvement with a cause. A 2 (altruistic motive: high vs. low) X 2 (congruence: high vs. low) X 2 (involvement: high vs. low) experimental study examined perceptions of celebrity credibility, attitudes toward celebrity endorsement and nonprofit organization, and intentions to donate money and volunteer time. The findings attest to main effects of causal attribution of a celebrity's altruistic motive and interaction effects between motive attribution and congruence (i.e., spontaneous judgment of celebrity-cause incongruence). Further, three-way interaction effects suggest the role of involvement in spontaneously activating celebrity-cause disassociation.     

Can a Celebrity Serve as an Issue‐Relevant Argument in the Elaboration Likelihood Model?

While celebrity endorsement has been traditionally perceived as a peripheral cue in the elaboration likelihood model, several conceptual studies suggest otherwise that it may play a significant role in delivering issue‐relevant information when celebrity–product congruence exists. The current study provides empirical evidence that a celebrity indeed serves as an issue‐relevant argument by investigating the interaction effects between endorser–product congruence and product involvement on consumer responses in two different match‐up conditions. Moderated regression analysis results indicated that product involvement strengthened the effect of expertise‐based endorser–product congruence on consumer responses. However, the relationship between attractiveness‐based endorser–product congruence and consumer responses generated insignificant results. Research findings entail that a celebrity persuades consumers through the central route when the expert image in particular fits well with the endorsed product. Further analyses indicated that attitude toward the brand mediated the relationship between attitude toward the advertisement and purchase intention in both match‐up environments.     

A new model of how celebrity endorsements work: attitude toward the endorsement as a mediator of celebrity source and endorsement effects

This research introduces attitude towards the endorsement as a mediating variable in the relationships between celebrity source and endorsement factors and brand attitude. It also includes perceived celebrity motive, a variable rarely studied in the previous literature, as an endorsement factor. In a survey study, respondents evaluated four celebrity endorsement campaigns. Mediation analyses show that attitude towards the endorsement mediates the effects of three variables on brand attitude; these variables are celebrity expertise, celebrity–brand fit, and perceived celebrity motive. Moreover, results show that if consumers perceive that the celebrity was motivated to do the endorsement not only by money but also by product quality, this has a significant positive effect on attitude towards the brand.     

Engaging fans on microblog: the synthetic influence of parasocial interaction and source characteristics on celebrity endorsement

Brand managers use celebrity microbloggers to endorse their products on microblogs. Previous studies on celebrity endorsement mechanisms concentrated on source factors such as celebrity's characteristics and celebrity—product congruence. This study introduces a new audience factor: the fan–celebrity parasocial interaction (PSI) to explore the celebrity endorsement mechanism within a microblog context. The study hypothesizes that PSI and source factors (credibility, attractiveness, and congruence) significantly influence endorsement effectiveness. The results of an online survey (N = 862) indicate that PSI and celebrity–product congruence are salient antecedents of endorsement effectiveness. PSI serves as a mediator of the effect of source attractiveness on endorsement effectiveness. Source credibility and celebrity–product congruence are mediators between PSI and endorsement effectiveness. The study develops and tests a conceptual model to illustrate the influential mechanism of celebrity endorsement on microblog platforms.     

Celebrity endorsements: Influence of a product-endorser match on Millennials attitudes and purchase intentions

The buying power of millennial consumers is ever growing. They are social consumers, sharing all aspects of their experiences on social media. One advertising technique that may sway millennial consumers is using a celebrity endorser. The purpose of this study was to investigate if the presence of a congruent product-endorser match helped influence purchase intent of millennial consumers and aide in favourable attitudes toward the advertisement. Millennials evaluated an unfamiliar celebrity endorsement where they indicated they had little intent to purchase the product endorsed by the unfamiliar celebrity, but the unfamiliar celebrity did lead to favourable evaluations of the advertisement.     

Celebrity ambassador/celebrity endorsement – takes a licking but keeps on ticking

The paper examines the use of advertising and celebrity endorsement in promoting wristwatches from the beginning of the 20th century up until today. It shows a progression from simple informational advertisements stressing the technical, aesthetic and social appeals of the watches to more complex ones appealing to self-image and the use of celebrity endorsement. However, some – albeit not all – luxury wristwatch manufacturers have abandoned their use of celebrity endorsers. We note the need for businesses to undertake advertising aimed at appealing to consumer self-image, often reinforced by celebrity endorsement. The paper explores why the celebrity endorsement of brands may be effective or otherwise. We question, however, the cost-effectiveness of celebrity endorsement, and whether methods such as parasocial advertising through social media sites may offer an alternative. Like the brands they promote, advertising theories also have life cycles and the need to find new theories and update or abandon existing ones continues apace.     

Reconsidering the Role of Fit in Celebrity Endorsement: Associative‐Propositional Evaluation (APE) Accounts of Endorsement Effectiveness

This study is designed to fill any explanatory gaps that have been traditionally underexplored when considering the interplay of implicit/automatic/unconscious and explicit/deliberate/conscious attitudes in the context of celebrity endorsement. The main experiment employed single target‐implicit association test as a measure of implicit attitudes. The key finding of the study is that the experimental condition where the fit between the celebrity and the endorsed product was low induced favorable implicit and explicit attitudes, similar to the condition where the fit was high. The explanation for this finding was that dissonance enhanced the association strength of the attitude object through biased attention and elaboration, which provided a basis for favorable propositions. In propositional reasoning, retroactive confirmation of the favorable implicit attitudes resolved dissonance. This study seeks to go beyond the existing endorsement and sponsorship literature developed based on matching principles such as source models, match‐up hypothesis, the congruity theory, and associative network models. The authors recommend that managers search for more creative and novel partners in addition to image‐matching ones.     

LESSONS FROM THE RICH AND FAMOUS: A Cross-Cultural Comparison of Celebrity Endorsement in Advertising

Using celebrities to promote products is a popular advertising technique around the world. However, little is known about how the implementation of celebrity endorsement varies according to dominant cultural values. This study content-analyzed television commercials featuring celebrities from two diametrically different countries--the United States and Korea--in terms of two fundamental cultural dimensions: (1) low versus high context, and (2) individualism versus collectivism. Findings of this study suggest that the strategic use and creative executions of celebrity endorsement mirror the respective prevalent cultural orientations in the two countries, although some similarities do exist. Extensive discussion and suggestions for future research are provided.     

Celebrity Endorsement and Involvement With the Social Cause in Nonprofit Organizations

Celebrity endorsement has become a very popular communication strategy in the nonprofit sector, although there are still doubts about its effectiveness. Specifically, one interesting question is whether the involvement of individuals with a social cause can explain differences in the valuation and effects of the celebrity endorsement strategy in consumer behavior. Taking into account this fact, the current research presents a causal model that analyzes the determinants of the attitude toward ads involving celebrities and the explanatory variables of the behavioral intentions in this sector. We worked with two subsamples of individuals with high and low involvement, who rated a fictitious ad with a well-known social entity and a celebrity. As a result, we observed that the strategy can influence the group of low involved people and have no significant effects on the segment with high involvement.     

The Role of Culture in Creative Execution in Celebrity Endorsement: The Cross-Cultural Study

ABSTRACT

In advertising literature, an area rarely explored is cross-cultural studies on celebrity endorsements. A good deal may be learned from understanding how a culture's communication style can shape the type of advertising most effective for that culture. This study examines the creative styles (creative executional factors) found in the advertising of Korea and America. The two countries represent two distinct cultures—Korea being a collectivistic culture and the United States being individualistic. Both cultures affect the norms and rules that guide their inhabitants’ behavior, directly affecting communication styles. The study finds that embedded in the use of celebrity endorsement are cross-cultural characteristics. The details of these findings will be useful to international advertisers executing celebrity endorsement campaigns in different cultural settings.     

Why Celebrity Sells: A Dual Entertainment Path Model of Brand Endorsement

This article introduces a dual entertainment path model that integrates insights from media entertainment and transportation theory to show how links between entertainment motives (aspirational and playful) and experiences (celebrity fantasy and emotional investment) influence endorsed brand attitude. Results of two studies validate the salience of two paths. Fans, who hold parasocial bond with the celebrity, are driven by both aspirational and playful motives to engage in celebrity-induced entertainment experiences. Nonfans lack aspirational motive and are driven predominantly by playful motive. In either situation, celebrity-induced entertainment experiences enhance endorsed brand attitude. This model complements the existing celebrity endorsement literature by positing entertainment as a salient dimension of brand endorser effects. Its findings provide new insights on how advertisers promote their brands.     

Celebrity trait transference: when brands pick up endorsers' personality traits

ABSTRACT

This research adds celebrity trait transference (CTT) to the psychological processes that can account for non-evaluative image transfer in celebrity endorsement. CTT was studied in three experiments. The first experiment found transfer of personality traits associated with three celebrities to nonfamiliar brands. Two additional experiments explored boundary conditions by using familiar instead of nonfamiliar brands. Results from the latter two experiments suggest that CTT can reinforce existing trait associations in familiar brands but is less likely to change or create trait associations. Unlike previous process studies of non-evaluative celebrity image transfer, the present research demonstrates transfer exclusively of the target personality trait with no effect on other traits. As the present study used a different methodology compared to previous research (single exposures to one celebrity-brand pairing vs. multiple exposures to several celebrity-brand pairings) the results were interpreted to mean that different processes account for celebrity image transfer under different circumstances.     

Celebrity versus film persona endorsements: Examining the effect of celebrity transgressions on consumer judgments

This study introduces film personas (e.g., Hermione Granger, Jack Sparrow, Bridget Jones) as effective brand endorsers. A three study, mixed‐method approach is used. Results show that a film persona (e.g., Legolas, from Lord of The Rings, vs. celebrity, Orlando Bloom) is a more (less) effective endorser (i.e., resulting in more positive attitudinal and behavioral judgments). Exploratory findings indicate that this may be due to film personas possessing a tight (vast) association set, which is more (less) easily transferred onto the endorsed brand. Results of this study also illustrate that endorsed brands are shielded from the negative effects of celebrity transgressions when they are featured as their film persona in an endorsement. This study has important implications for advertisers in the choice and execution of their advertisements featuring celebrities.     

“This Post Is Sponsored”: Effects of Sponsorship Disclosure on Persuasion Knowledge and Electronic Word of Mouth in the Context of Facebook

Social media, such as Facebook, offer brands the opportunity to reach their target audience in a less obtrusive way than traditional media, through sponsored posts. Regulations require marketers to explicitly inform consumers about the commercial nature of these posts. This study addresses the effects of sponsorship disclosures by means of a 2 (no disclosure vs. the sponsorship disclosure ‘Sponsored’) × 2 (source: celebrity endorser vs. brand) experiment. Results suggest that a sponsorship disclosure only influences the use of persuasion knowledge when the post is disseminated by a celebrity. Moreover, a disclosure starts a process in which the recognition of advertising (i.e., the activation of conceptual persuasion knowledge) causes consumers to develop distrusting beliefs about the post (i.e., higher attitudinal persuasion knowledge), and in turn, decreases their intention to engage in electronic word of mouth.     

The Impact of Peer,Politician, and Celebrity Endorsements on Volunteering: A Field Experiment with English Students

Endorsement is used by charitable organizations to stimulate public support, including monetary donations. This article reports a field experiment that examined the effect of leader and peer endorsement on student volunteering. The experiment was conducted with over 100,000 students from five UK universities and compared the effect on volunteering rates of email endorsements by politicians, celebrities, and peers, to a control group that received an email but no endorsement. We examined outcomes seven weeks after the original e-mails, including click-throughs to volunteering unit websites, attendance at volunteering training, registration with volunteering units, and actual volunteering. Peer endorsements reduced click-throughs to volunteering unit websites. There were positive treatment effects for endorsement by politicians on subsequent training but no significant effects of any of the endorsements on our other outcome measures. Overall, we found little support for the provision of leader and celebrity endorsement, and confirm negative effects for peer endorsement.     

Celebrity Endorsements in Advertisements and Consumer Perceptions: A Cross-Cultural Study

ABSTRACT

We studied consumer perceptions of celebrity endorsements from a cross-cultural perspective. In empirically examining consumer perception of celebrity endorsement, we used Hofstede's cultural dimensions to develop research propositions and examined these propositions through focus group discussions involving consumers from India and the United States. Findings indicated that specific differences and similarities exist in how consumers across India and the United States perceive celebrity endorsements. There is a positive, although moderate, impact of celebrity endorsements on attention and exposure of consumers. Implications for marketers as well as suggestions for future research are discussed.     

Magazine Advertising: Factors Influencing the Effectiveness of Celebrity Advertising

This study analyzes the differences in celebrity effectiveness in advertisements of different styles as well as the impact of source credibility. This study uses an experimental magazine to test nine fictional advertisements for three products with unreal brands and three advertising styles. The findings show that the advertising styles that generate the greatest effectiveness differ according to the product; the celebrities do not increase effectiveness, but when the respondents recognize the celebrity, effectiveness increases; and credibility influences affective and conative measures. The work also considers how celebrity-product pairings, the existence of negative celebrity information, and the familiarity with the celebrity affect the effectiveness.     

Consumers’ Reactions to a Celebrity Endorser Scandal

This research examined the impact of a widely publicized celebrity scandal on consumers’ attitudes toward the involved celebrities and the products they endorsed. Special attention is placed on the interplay between consumers’ perceptions of the celebrities’ responsibilities for the events that occurred, their affective reactions to both the events and the celebrities, and their consequent reactions to the products that the celebrities endorsed. The use of a real celebrity scandal permitted the effects of several variables to be identified that are normally not taken into account, including individuals’ a priori liking for the celebrities, perceptions of the scandal's impact on both the involved celebrities and the society, individuals’ own involvement in scandal‐related activities. These and other effects were evaluated using structural equation modeling. Two parallel analyses, one for each celebrity, fit the model well and provided insight into the processes that potentially mediate the effects of a celebrity scandal on product evaluations.