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.     

Excellent Product … But Too Early to Say: Consumer Reactions to Tentative Product Reviews

This research explores the effects of tentativeness in online product reviews on consumers' product attitude certainty and behavioral intentions. Drawing on salience theory, attribution theory, and work in attitude certainty, I predict that, when consumers who have seen positive reviews of a product are exposed to a tentative review, their attitude certainty and willingness to purchase is reduced. I also predict that consumer reactions differ depending on the expertise of the review source as well as the product experience of the consumer.I also address confidence in information completeness as the metacognitive mechanism that explains the tentative review effect. Specifically, I argue that consumers who see a tentative review are sensitized to potentially missing information, which reduces their attitude certainty and willingness to purchase.Our hypotheses are tested in a series of experiments which demonstrate that tentativeness reduces attitude certainty and willingness to purchase but that the effect is attenuated when the reviewer is a novice and when the consumer has a high level of product experience. Based on the findings, I discuss our contributions to theory and suggest practical steps that firms can take to mitigate the effects of tentative reviews.     

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.     

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.     

The Moderating Influence of Country of Origin Information Seeking on Homophily and Product Satisfaction

ABSTRACT

The purpose of the research was to investigate when consumers concurrently select a range of retail products online, what percentage of products need country of origin (COO) identification. Moreover, will COO information seeking positively moderate the relationship between homophily and product satisfaction. Participants were recruited through an online survey platform (MTurk). The results appear to be the first to quantify the number of retail products within a basket that need some form of country of origin (COO) identification. Electronic word of mouth (eWOM, e-reviews) has become an important factor in the purchasing process for consumers. When COO information is unavailable, consumers will search online reviews to determine the COO of products. When reading the e-reviews, consumers will also evaluate the reviewer and the similarities they share. If they are not similar (low in homophily) their satisfaction with the product is low. By contrast, when homophily is high, product satisfaction is high. Specifically, as homophily increases, an individuals' need for COO information seeking has a positive moderating effect on their perceived product satisfaction. Online retailers promoting their products could benefit from sales increases due to their ability to provide COO information at a low cost, which in turn, provides ease, peace of mind and purchase satisfaction for consumers.     

Relative persuasiveness of repurchase intentions versus recommendations in online reviews

This paper examines the effects of loyalty expressions (i.e., repurchase intentions vs. recommendations) on review persuasiveness. Specifically, we propose that repurchase intentions have a stronger positive effect on review persuasiveness compared to recommendations because of reviewer credibility. We test the above proposition using both an empirical dataset and multiple experimental studies. In addition, we examine frequency of purchase as a boundary condition for our proposition. Accordingly, we find that for frequent purchases, repurchase intentions (vs. recommendations) increases credibility, which, in turn, augments review persuasiveness. For infrequent purchases, however, we observe that recommendations (vs. repurchase intentions) enhance review persuasiveness, which occurs because of increased credibility. This research offers contributions to theory in the areas of online reviews, loyalty, source credibility, and cue-diagnosticity, as well as to practice regarding how firms should seek to elicit loyalty expressions (i.e., repurchase intentions vs. recommendations) when soliciting reviews.     

Expertise Makes Perfect: How the Variance of a Reviewer's Historical Ratings Influences the Persuasiveness of Online Reviews

Online reviews have become an important source of information for consumers’ purchase decisions. Drawing upon the consumer expertise and persuasion literature, this study proposes that consumers are more willing to accept a reviewer's recommendation when his/her historical ratings in a certain product domain display greater variance. Five experiments provide consistent support for this hypothesis and the underlying process. Study 1 tests the proposed effect of a reviewer's rating variance on consumers’ willingness to accept the reviewer's recommendation. Studies 2 and 3 show that this effect can be attributed to perceptions regarding the reviewer's expertise. Moreover, this “variance-expert inference” effect is attenuated when the consumption experience of the reviewer is limited (Study 4) and when the consumers are familiar with the products (Study 5). The theoretical implications for the online review and persuasion literature and practical implications for online retailers are discussed.     

Culture, product type, and price influences on consumer purchase intention to buy personalized products online

With personalization, consumers can choose from various product attributes and a customized product is assembled based on their preferences. Marketers often offer personalization on websites. This paper investigates consumer purchase intentions toward personalized products in an online selling situation.The research builds and tests three hypotheses: (1) intention to purchase personalized products will be affected by individualism, uncertainty avoidance, power distance, and masculinity dimensions of a national culture; (2) consumers will be more likely to buy personalized search products than experience products; and (3) intention to buy a personalized product will not be influenced by price premiums up to some level. Results indicate that individualism is the only culture dimension to have a significant effect on purchase intention. Product type and individualism by price interaction also have a significant effect, whereas price does not. Major findings and implications are discussed.     

Exploring effects of source similarity,message valence,and receiver regulatory focus on yelp review persuasiveness and purchase intentions

This study is among the first to investigate the impact of message, source, and receiver characteristics on user attitudes toward Yelp reviews, with the subsequent impact of these attitudinal evaluations on review persuasiveness. Specifically, it examines the roles of review valence (positive/negative) and sidedness (one-sided/two-sided), as well as perceived similarity with the reviewer, on user perceptions of helpfulness, trustworthiness, and credibility of the review. The study also tests moderating effects of perceived source similarity and user regulatory focus on the relationships among message characteristics, attitudinal variables, and purchase intentions. Our results disconfirm the negativity bias reported in previous studies and indicate that positive reviews are perceived as more trustworthy, credible, and helpful than negative or two-sided reviews. Review helpfulness and credibility, in turn, positively impacts its persuasiveness, with regulatory focus playing a complex nuanced role in the persuasiveness – behavioral intentions relationship. Based on the findings, future research avenues and managerial implications are proposed.     

Born Unequal: A Study of the Helpfulness of User-Generated Product Reviews

Online user-generated product reviews have become an indispensible tool for consumers and thus for retailers who want to attract and retain consumers. Yet, relatively little is known about what causes consumers to find an online peer review helpful to their shopping tasks. Prior research examines mostly the effects of product reviews on consumer product attitude, product choice, and product sales. This paper, however, provides an analysis of the determinants of review helpfulness. In two studies, we examine the effects of review characteristics, product type, and reviewer characteristics on perceived review helpfulness. With data collected from a real online retailer, we provide empirical evidence to support our conceptual predictions. Specifically, both review valence and length have positive effects on review helpfulness, but the product type (i.e., experiential vs. utilitarian product) moderates these effects. Using content analysis of reviews, we develop a measure of expressed reviewer innovativeness (i.e., the predisposition toward new products as revealed in review content). A curvilinear relationship exists between expressed reviewer innovativeness and review helpfulness. These findings lead to pertinent managerial implications.     

Why should I believe this? Deciphering the qualities of a credible online customer review

Online customer reviews have been shown to have a powerful impact on the sales of a given product or service. However, the qualities of a ‘credible’ online customer review are still subject to debate. Existing research has highlighted the potential influence of a range of factors on the credibility of an online customer review, but relies heavily on quantitative methods and a ‘top down’ approach. In turn, this can reduce our understanding of the influence of these factors into merely discerning whether one pre-determined factor is more influential than another is. This paper adopted a ‘bottom up’ thematic analysis of individual qualitative interviews with a purposeful sample of consumers who regularly utilised online customer reviews. The findings uncovered a range of factors that influenced the credibility of an online customer review that were attached to a reader’s personal experience and to the content of a specific review, and inferred the existence of a reciprocal relationship between the constructs of review helpfulness and review credibility.     

Why consumers exaggerate in online reviews? Moral disengagement and dark personality traits

Diffusion of digital media has led to extensive reliance on online reviews for purchase decisions. However, consumers may routinely exaggerate about their own consumption experiences. Using moral disengagement theory and the dark personality trait , the present study seeks to enhance the understanding of consumers' intentions to exaggerate about their consumption experience in online reviews. In order to demonstrate convergence of finding and replicability of the proposed relationships, four studies were conducted to examine consumers’ intention to exaggerate about their positive and negative experiences in online reviews for search and experience products respectively. Findings showed significant positive relationships between dark personality traits and intention to exaggerate in online reviews. Furthermore, moral disengagement significantly mediated intention to exaggerate for narcissists and psychopaths. The results reinforce the usefulness of the study for managers as these studies augment the understanding of consumer lying behavior in the context of online reviews and offer insights into mechanisms that might prevent the amplification of such reviews.     

Hedonic and utilitarian use of user-generated content on online shopping websites

The Internet has made it possible for consumers to share reviews, opinions, and thoughts about products and services on online shopping websites. This user-generated content (UGC), which can be considered to be part of social commerce, is likely to influence other consumers’ attitudes toward a product and subsequent purchase intentions. The purpose of this study was to investigate two major uses of UGC: hedonic and utilitarian, and how they impact purchase intentions, along with users’ trust for different types of comments and reviews. Also investigated are associations between hedonic use, utilitarian use, and trust, with purchase behavior at online shopping websites. Results of this study will add to the domain knowledge related to marketing and how it impacts consumer psychology and behavior. From a practitioner perspective, marketers need to understand the impact of UGC so they can monitor this method of marketing communication as it can impact trust and purchase intentions.     

Complimentary competition: The impact of positive competitor reviews on review credibility and consumer purchase intentions

Online reviews are important decision aids for consumers, but not all reviews are perceived as equally credible, which may hinder consumer decisions. This research identifies positive competitor reviews as a novel source of credible reviews. A pre-test and four studies show that consumers perceive positive reviews written by competitors as more credible than similar consumer-generated reviews. This is because, compared to lay consumers, competitors are perceived as less likely to be compensated for their positive reviews. Positive competitor views, in turn, elicit greater intentions to purchase the reviewed product. Positive competitor reviews are expected to contribute to a “coopetitive” environment.     

什么样的评论更可信？心理模拟视角下在线评论类型对感知在线评论可信性的影响研究

在线评论及其可信性已成为消费者网购决策重要的依据。以往研究多关注在线评论自身属性对在线评论可信性的影响,忽视了消费者心理认知的作用。文章从消费者心理角度,结合爬虫数据和实验研究发现,消费者对搜索品属性型评论感知可信性更高,对体验品体验型评论感知可信性更高;心理模拟在感知在线评论可信性影响过程中具有中介作用,搜索品属性型评论通过结果模拟引发更高的感知评论可信性,体验品体验型评论则通过过程模拟引发更高的感知评论可信性。研究结论对网络购物平台及商家制定更精准的营销策略和评论管理机制有帮助。     

In God we hope,in ads we believe: the influence of religion on hope,perceived ad credibility,and purchase behavior

This research proposes and demonstrates that religiosity positively affects consumers’ hope for advertised benefits, leading to greater perceived advertisement credibility and, consequently, a greater likelihood of purchasing the advertised products. A multiple-step mediation analysis revealed that both hope for advertised benefits and perceived ad credibility play pivotal roles in explicating the effect of religiosity, whether measured (study 1) or manipulated (study 2), on purchase intentions of advertised products. The authors also investigated the interactive effect between religiosity and perceived product materialism on the observed effects (study 3). The effect of religiosity on hope for advertised benefits, perceived ad credibility, and purchase intentions was moderated by perceived product materialism, such that the positive effects of religiosity on hope, perceived ad credibility, and purchase intentions were observed only for non-materialistic (vs. materialistic) products. Theoretical and managerial implications are discussed.     

How reviewers’ use of profanity affects perceived usefulness of online reviews

This research explores the effects of profanity on perceptions of online reviews’ usefulness. Based on the prior research that described asymmetric attribution effects, we predict that when consumers see profanity in an online review, their reactions differ depending on the valence of the review. Specifically, when profanity is used in a negative review, it should reduce review usefulness because of decreased perceived reviewer objectivity. Among positive reviews, profanity increases review usefulness through greater perceived reviewer credibility. Through analysis of Yelp data, we show that the effect of profanity on usefulness depends on review valence. Experimentally, we demonstrate the opposing mediating effects of perceived objectivity and credibility on the usefulness of the review.     

Understanding consumption behaviours for fair trade non‐food products: focusing on self‐transcendence and openness to change values

Using the Schwartz value system, this study explored the personal values of consumers related to fair trade product consumption. This study further investigated how the values determine beliefs, attitudes and purchase intentions associated with fair trade non‐food products. Data were collected using an online survey from a random sample of 1824 nationwide consumers. The results of this study revealed that fair trade purchasers show a higher level of self‐transcendence (universalism, benevolence) and openness to change values (self‐direction, stimulation) than non‐purchasers. These values also have positive effects on the formation of beliefs, attitudes and purchase intentions pertaining to fair trade non‐food products. Fair trade purchasers were also found to possess distinctive socio‐demographic characteristics concerning age, education and income. Findings can offer marketers specific information regarding consumers' motivations to purchase fair trade goods, which can improve targeting of products and ultimately increase the business and benefits of fair trade.     

How consumers use product reviews in the purchase decision process

This paper uses individual level data to examine the influence of product reviews in different stages of the consumer’s purchase decision process. Specifically, a two-stage model consisting of consideration set formation and choice is posited, where the consumer can incorporate information from product reviews in each stage. The model is estimated using an online panel survey about hotel choice. We find that (1) consumers use product reviews more in the consideration set stage and less in the choice stage, (2) Bayesian updating of prior perceived quality better explains how consumers use product reviews compared to two competing updating methods, and (3) the monetary value of a unit increase in the mean of product reviews is computed. Our results suggest that managers should make product review information (their number, average, and variance) available from the beginning of the search process and encourage satisfied customers to write reviews.     

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.