The Effects of Credible Online Reviews on Brand Equity Dimensions and Its Consequence on Consumer Behavior

Consumers are using social media platform to gain and share knowledge on brands. In the virtual environment, consumers are exposed to various online reviews on brands that leave an impression of brands on the minds of the consumers. The present study combines Yale attitude change model and attribution theory to examine the effects of credible online reviews on brand equity dimensions. The present study views, through the lens of Yale attitude change model, the various factors that affect credibility evaluation of online reviews. Further, attribution theory is used as the theoretical backbone to analyze the effects of credible online reviews on brand equity dimensions and finally on purchase intention. This study uses structural equations modeling (SEM) to investigate the impact of online credible reviews on customer based brand equity (CBBE) dimensions and its consequence on consumer behavior (purchase intention). Results indicate that source and review quality are the most important factors that affect consumer's credibility evaluation of a review. Online credible reviews have more significant impact on brand awareness, perceived value and organizational associations and thus leads to consumer's purchase intention in the context of consumer electronic products in India.     

The differential roles of brand credibility and brand prestige in consumer brand choice

This study explores how brand credibility and brand prestige affect brand purchase intention and empirically investigates how the combinatory mechanism of brand credibility and brand prestige materialize across multiple product categories. The proposed model of six latent constructs is tested with structural equation modeling analysis: brand credibility, brand prestige, perceived quality, information costs saved, perceived risk, and brand purchase intention. The results suggest that both brand credibility and brand prestige positively influence brand purchase intention through perceived quality, information costs saved, and perceived risk under different product categories representing the high and low self‐expressive nature. Several implications for advertising messages and brand positioning strategies are discussed. © 2010 Wiley Periodicals, Inc.     

Extending Our Understanding of eWOM Impact: The Role of Source Credibility and Message Relevance

Using qualitative data from consumers who have previously purchased online and who read online product reviews, this work expands current thinking on determinants of the impact of electronic word-of-mouth (eWOM) communications on consumer decision making. Specifically, beyond source credibility, findings suggest that consumers also assess how similar the source of eWOM is to them in terms of personality and product usage. In addition to source credibility, the notion of message relevance is introduced as the second first-order factor of eWOM impact. In turn, the underlying dimensions of source credibility (expertise and trustworthiness) and message relevance (persona similarity and usage similarity) constitute four second-order determinants of eWOM impact; providing a comprehensive view of the determinants of eWOM impact. Additionally, a conceptual framework depicting the sequential and cumulative effect of the four assessment dimensions along with possible gender differences in the processes used to assess eWOM credibility and message relevance are discussed.     

Aggregate consumer ratings and booking intention: the role of brand image

The very nature of tourist services implies that consumers consider all available cues when making hotel bookings. Information obtained via the Internet is an especially important cue, and the findings of numerous studies highlight the importance of peer-generated information—electronic word-of-mouth (eWOM)—in consumers’ decision-making processes. Along with eWOM, however, traditional marketing signals such as brand image and price still affect consumer behaviour. Thus, this study analyses the effect of eWOM (i.e. global hotel ratings) on purchase intention, considering the role of brand image. Two online scenario-based experiments designed using real information from TripAdvisor were conducted. The final sample comprised 260 participants. Variation in hotel ratings modified consumers’ purchase intentions, with brand image playing a significant role in this relationship. The effect of eWOM on consumer purchase intentions was higher (lower) for hotels with a poorer (better) brand image. The results of the analysis imply that price can potentially help to prevent the negative effect of poor ratings.     

Delight the experts,but never dissatisfy your customers! A multi-category study on the effects of online review source on intention to buy a new product

Online reviews are a pervasive form of electronic word-of-mouth (eWOM) that potentially accelerate—or slow down—the diffusion of recently launched services in the marketplace. While empirical research largely supports the effects of online reviews on attitudinal and behavioral outcomes, less is known about the impact the source of the review—i.e., if it comes from a peer consumer or an expert—has on the recipient. Two experiments that combine reviewer- (expert, consumer), service type- (mobile package, restaurant, car repair), consumer- (level of general innovativeness), and review-related (positive, negative) characteristics reveal a challenging interaction between the review’s source and its valence: while—compared to an established baseline—a positive expert review seems more effective in increasing the recipient's intention to purchase than a review by a peer consumer, a negative consumer review lowers the recipient's intentions to a larger extent than a negative expert review. We further find effects of the consumer's innovativeness and the service category across the experiments. Our research contributes to the topical and increasing body of empirical research on the effects of involved characteristics within online reviews across several product types.     

In eWOM We Trust

Electronic word-of-mouth (eWOM) is an important factor in marketing communication. As more people use eWOM to assist them in making purchase decisions, the process by which they evaluate the credibility of these online recommendations becomes increasingly relevant. Although previous studies have recognized that credibility is one of the most important antecedents of eWOM adoption, little is known about the drivers of this credibility. Thus, this paper examines factors that influence the perceived credibility of consumer online recommendations. Drawing on dual process theory and source models, hypotheses were derived and tested with structural equation modeling on a basis of 643 consumers. Generally, the paper provides evidence that expertise, trustworthiness, and aggregate rating are the most significant factors of the perceived eWOM credibility. The study also demonstrates that involvement could moderate these relationships.     

Positive emotion bias: Role of emotional content from online customer reviews in purchase decisions

Abundant research has investigated the impact of review valence on purchase decisions, but has reported mixed findings. To reconcile these mixed findings, this study unearths the understanding of review valence from the perspective of the emotional content in online customer reviews. To explore the effect of emotional content on purchase decisions and the moderating role of emotional content on non-emotional content and purchase decisions based on a heuristic-systematic model, a laboratory experiment with 106 subjects was used to empirically test the research hypotheses. The results show that pleasant online customer reviews lead to a higher purchase likelihood compared to unpleasant ones. Perceived credibility and perceived diagnosticity have significant influence on purchase decisions, but only in the context of unpleasant online customer reviews. The findings demonstrate positive emotion bias for online customer reviews, and carry important practical implications for both sellers and customers.     

Too Popular to Ignore: The Influence of Online Reviews on Purchase Intentions of Search and Experience Products

Consumers assess the credibility of online product reviews to guide their purchase decisions. However, little is known about how consumers determine the credibility of online product reviews. This article examines the effect of the level of detail in a product review and the level of reviewer agreement with it on the credibility of a review and consumers' purchase intentions for search and experience products. Overall, the results indicate that more credible reviews lead to higher purchase intentions. Interestingly, the findings also demonstrate that consumers determine the credibility of a review differently for search and experience products. For search products, consumers deem online reviews to be more credible when the reviews contain detailed information about the product. However, for experience products, consumers determine the credibility of a review by assessing the level of reviewer agreement with a review. The lack of diagnosticity of detailed information in online reviews of experience products is attributed to the idiosyncratic nature of experiences. Implications for research and practice are discussed.     

Does Being Social Matter? Effects of Enabled Commenting on Credibility and Brand Attitude in Social Media

Public relations practitioners are actively building relationships with bloggers to obtain high-credibility brand mentions and reviews. Practitioners may request bloggers limit comments to maintain control over messages and constrain dissonant perspectives; however, the impact of limiting social features of blogs is unknown. Utilizing source credibility and warranting theory, this article examines the relationship between enabled comments on blogs and brand attitudes, with the moderating variables of credibility and expertise, from both a public relations and consumer behavior perspective. Using an online experiment (N = 527) we found that socialness increases perceptions of blogger expertise, brand attitudes, and purchase intention, but not credibility.     

Exploring the impact of different factors on brand equity and intention to take up online courses from e-Learning platforms

Understanding service branding from the customer perspective is helpful for various organizations to attain a competitive edge and build a strong customer base. This research work aims to evaluate the various dimensions and constructs that affect brand equity and user's willingness to undertake courses from various e-Learning providers. Data for the quantitative study was obtained using a questionnaire based survey. Analysis of the 378 responses reveals that consumer experience is a strong predictor of both brand meaning and customer satisfaction. Although brand meaning positively impacts brand equity, brand awareness demonstrates a negative effect on brand equity. However, brand equity and customer satisfaction have a significant and positive impact on intention to undertake courses from online learning platforms. The study concludes with discussion on different implications, shortcomings, and directions for future research.     

Investigating the effect of quality of grammar and mechanics (QGAM) in online reviews: The mediating role of reviewer crediblity

Grammar and mechanics are important components of written communication and provide signals of credibility. Although past research has documented general effects of grammar and mechanics, to date, the influence of quality of grammar and mechanics (QGAM) of online reviews remains largely unexamined. Through the lens of ELM, the present research examines QGAM of a review as a peripheral cue influencing the perceived credibility of a reviewer, finding that reviews with high QGAM have higher perceived credibility and exert a stronger influence on purchase intentions. Meanwhile, reviews with low QGAM are not as credible, influencing purchase intentions less. Product type, review length, and review valence moderate these influences, such that QGAM is more important for reviews of experience goods and reviews of shorter lengths. Further, reviewer credibility fully mediates positive reviews but does not mediate negative reviews. Implications, limitations, and future research directions are discussed.     

Measuring the impact of online reviews on consumer purchase decisions – A scale development study

Consumers' exposure to online reviews influences their online retail shopping behavior. They search for reviews while evaluating products for purchase decisions. Past studies have indicated that online reviews affect the credibility and trust of the sellers and the products they sell on online platforms. Keeping this in view, the current paper aims to develop and validate a scale to understand the impact of online reviews on consumer purchase decisions. Data were collected from 431 young online shoppers for this research. The initial exploratory factor analysis (EFA) results helped identify four factors, viz. source credibility, volume, language and comprehension, and relevance which constitute the scale. The scale was validated by confirmatory factor analysis (CFA). The study's findings fill the gap of having a standardized scale that online retailers can use as indicators to assist consumers in their online decision-making. The discussions and implications support consumers' susceptibility to online reviews, an essential source for product and brand information in facilitating online consumers' purchase decisions.     

Role of electronic word-of-mouth content and valence in influencing online purchase behavior

Electronic word of mouth (eWOM) becomes an important tool for online consumers for evaluating and selecting a product. Extant research has mainly studied how various eWOM characteristics such as valence, volume, and text-based eWOM content affect purchase behavior. This study, for the first time, has explored the role of mixed neutral WOM valence and rich eWOM content on online purchase intention. Initially, the qualitative analysis method was used to conduct in-depth interviews with experts-cum-online shoppers from different fields. Purposive sampling was used to select 14 experts and online shoppers from diverse fields. Inductive analysis was conducted to analyze the interview generated content. It helped in forming various codes and categories in explaining eWOM constructs. Content analysis was also used to analyze the importance of various factors in key constructs (themes) affecting online behavior. The finding from the content analysis confirmed that both mixed neutral eWOM and rich eWOM content positively affects online purchase intention. This study has also explored how insights derived from the content analysis of valence and content can help marketers to develop an online marketing strategy. Research implications and future research directions have been discussed in this paper.     

在线促销限制对消费者购买决策的影响研究——基于精细加工可能性视角

文章基于精细加工可能性理论探究了在线购物情景中不同促销限制类型（时间限制和数量限制）对消费者购买决策行为的影响。通过2（产品涉入度：高vs低）×2（限制类型：限时vs限量）的组间因子实验设计进行了实证研究,结果发现：在线促销情境下,促销限制对消费者购买决策的影响受到消费者产品涉入度的调节。当产品涉入度高时,消费者偏好时间限制促销,购买意向更高,感知控制感起了中介作用。当产品涉入度低时,偏好数量限制促销,购买意向更高,感知稀缺性起了中介作用。文章丰富了促销理论和消费者购买决策理论,同时为商家进行有效的在线促销提供了直接指导。     

The effect of characteristics of source credibility on consumer behaviour: A meta-analysis

The aim of this research is to synthesise findings from existing studies on the characteristics of source credibility of electronic word of mouth (eWOM) communications in a single model by using meta-analysis. Findings from 20 research papers show that source expertise, trustworthiness, and homophily significantly influence perceived eWOM usefulness and credibility, intention to purchase, and information adoption. The results of this study add to existing knowledge of the influence of source characteristics on consumer behaviour, which will advance our understanding of information processing. Marketers can use the findings of this meta-analysis to enhance their marketing activities.     

普通消费者口碑和专家评论对消费者购买决策的影响研究

在线评论作为营销信息中新的要素，已成为当下消费者购买产品或服务时的重要因素。文章根据获得诊断性模型和调节导向理论，引入自我调节导向作为调节变量，探讨在线评论信息源对品牌评价和购买意愿的影响。文章采用情境模拟实验方法，考察了普通消费者口碑和专家评论对消费者的品牌评价和购买意愿具有不同的影响。具体来说当消费者处于促进调节导向时，普通消费者口碑比专家评论更容易使消费者产生良好的品牌评价和购买意愿；当消费者处于预防调节导向时，专家评论比普通消费者口碑更容易使消费者产生良好的品牌评价和购买意愿，其中感知诊断性在这个过程中起到中介作用。文章整合了不同领域的理论，拓宽了不同来源的在线评论对消费者影响的理解力，而且研究结论对网站的营销人员如何管理在线评论有一定的启示意义。     

Explicating the ‘like’ on Facebook brand pages: The effect of intensity of Facebook use,number of overall ‘likes’, and number of friends' ‘likes’ on consumers' brand outcomes

This study examined the relationship between the number of overall ‘likes’ and friends' ‘likes’ on Facebook brand pages in influencing consumers' brand attitude, brand trust, brand involvement, and purchase intention, drawing upon theoretical concepts including diffusion of innovations, social capital theory, strength of weak ties, sociometric versus perceptual popularity, and prior research in online impression formation. Results of a 2 × 2 experiment revealed significant main effects of number of overall ‘likes’ and friends' ‘likes’ on key dependent measures. A significant interaction effect was also found between overall ‘likes’ and friends' ‘likes’. Additionally, intensity of Facebook use also mediated the relationships between number of overall ‘likes’ and friends' ‘likes’ with brand attitude, brand trust, and purchase intention.     

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.     

Social media or shopping websites? The influence of eWOM on consumers’ online purchase intentions

This study empirically tests and compares the influence of friends’ recommendations on social media and anonymous reviews on shopping websites in the context of online purchase intention. For this purpose, we analyse the impacts of these two platforms based on the components of information adoption model (IAM) which are borrowed as information quality, information credibility, information usefulness and information adoption. We conduct a survey and find anonymous reviews as more influential on consumer’ online purchase intentions than friends’ recommendations on social media. However, as this result was contrary to that expected, we conduct another study through in-depth interviews in order to enlighten our results found in the first study. In Study 2, we find the reasons why consumers prefer anonymous reviews rather than friends’ recommendations. Information quantity, information readiness, detailed information and dedicated information are factors which make shopping websites superior than social media in terms of the impact of electronic word of mouth (eWOM). Academic and managerial implications are discussed.