Comparing consumer-produced product reviews across multiple websites with sentiment classification

ABSTRACT

Online consumer reviews have been extensively studied. However, existing literature analyzing online consumer review data mostly relies on a single data source, resulting in potentially biased analytics conclusions. Many websites encourage consumers to post reviews of their purchased products, so that new consumers can evaluate these reviews for the same product across different websites to help them make purchasing decisions. Confusions often arise in this process, because there often exist substantial discrepancies in customer reviews across different retailers on the same product. Clarifying such confusions can help consumers reduce concerns to make up their mind for their purchases, therefore benefiting both consumers and retailers. Through text analytics and sentiment analysis, we comparatively examine the underlying patterns of online consumer reviews of three large retailers including Sears, Home Depot, and Best Buy for a same product. Afterward, we combine online consumer reviews from these large retailers and conduct an overall text analytics and sentiment analysis. The overall results are further compared with the results from individual retailers. The findings show that the sentiment of the online consumer reviews could vary substantially so relying on a single data source to make purchase decision is not a wise idea. Based on the results, we further devise a framework to comparatively examine and integrate multiple data sources for social media analytics of online consumer reviews. This study offers important managerial implications and identifies several new research directions for social media analytics.     

Actual consumers' response to purchase refurbished smartphones: Exploring perceived value from product reviews in online retailing

Refurbishing is an industrial process whereby used products are returned to good working condition to extend lifespan. As smartphones are short life cycle products replaced at an increasing rate, refurbishing is one of the end-of-life strategies to recover value from used smartphones. Chief among the factors given for refurbishing success is consumers' perception of the aspects of the purchase toward these products. This research investigates the significant factors in consumer perceived value about purchasing refurbished smartphones. Online product reviews are recognized as a promising data source to evaluate consumers' post-purchase behaviour in the actual market. Accordingly, a customer satisfaction model of online refurbished smartphone reviews from e-commerce websites is presented to explore customer satisfaction dimensions (CSDs) toward refurbished smartphones. The results indicate that product characteristics, including function, which is related to satisfactory working, appearance, which is the same as no scratches on body and screen, and battery health, are the most worrying feature of refurbished smartphones that consumers have mentioned. Besides, we find that the similarity of these products to brand new ones and their lower prices are the main reason and motivation for purchasing. The results also show that the perceived value of refurbished smartphones is found as a two-dimensional structure based on perceived incentive and quality and perceived benefit and risk. Eventually, some solutions propose to improve customer perceptions and reduce the misconception of refurbishment concept, which can be used by refurbishers and marketing managers for proper product development and marketing strategies.     

Selling to Millennials with online reviews

Millennials have heavily influenced social media's evolution into an important source of product information. They are increasingly basing their product evaluations on information gathered from online reviews. Thus, companies targeting Millennials may wish to pay heed to online reviews. Which products are affected by Millennials’ online reviews? Do the reviews tend to be positive or negative? Where do Millennial customers look for information amongst the plethora of online venues? As presented herein, a survey of 227 Millennials reveals that this generation is undeniably posting reviews online and being influenced by these reviews. Respondents show a definite preference for two online venues, Facebook and company websites, when voicing their opinions. Reviews are broken down by positive and negative comments, and how product categories fare for each type. Contrary to popular thinking, the respondents were more prone to post positive reviews than negative reviews. Males voice their opinions online significantly more often than females, and specific gender differences are observed by product category. Recommendations are provided for selling to Millennials by leveraging online reviews.     

Exploring the influence of online reviews and motivating factors on sales: A meta-analytic study and the moderating role of product category

Online reviews, which significantly influence product sales, have been a central research topic in the field of marketing. Meanwhile, some motivating factors related to online retailers have been linked to product sales. While several articles have examined the impact between online reviews and motivating factors on product sales, many of the conclusions drawn are contradictory. From 28 studies focusing on online reviews and sales, this study performs a meta-analysis to analyze the true impacts of six review-related factors (i.e., the number of reviews, star ratings, standard deviation of ratings, helpfulness, review length and sentiment), and two motivating factors (i.e., price discounts and special shipping) on product sales. Meanwhile, this paper also studies how one product-related factor (i.e., product age) and one reviewer-related factor (i.e., reviewer's reputation) influence the relationship between online reviews and product sales. In addition, to study the moderating effect of product category, we divide the selected literature into two subgroups which are search and experience products. The results indicate that only review length and special shipping have no significant impact on product sales, while product category has a valid and specific moderating effect on the relationship between these determinants and sales. The presented conclusions will have important implications for academic research and for future industry practice.     

eWOM processing from receiver perspective: Conceptualising the relationships

Electronic word-of-mouth (eWOM) communication is considered an important source of information for consumers. In existing frameworks and empirical studies, factors that lead to eWOM influence have been categorised into three essential elements equivalent to the three elements of communication processing: source, receiver and message. eWOM requires a more elaborate form of information processing, given the many-to-many nature of such communications and that the types of information processing differ between novice and experienced consumers. However, there is no conceptualisation that demonstrates the relationships among the factors of eWOM from this critical information processing perspective. Further, there is limited discourse on the situation and communication channel, although the situation and platform characteristics shape the nature of communication in the digital age. This paper reports insights obtained from an extensive literature review and presents a broader categorisation encompassing the factors of source, receiver, message, situation, task involvement and channel. Research propositions and recommendations for further research into eWOM processing are offered.     

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.     

How consumers form product quality perceptions in absence of fixed posted prices: Interaction of product cues with seller reputation and third-party reviews

The uncertainty about product quality has increased in online settings, and consumers' often use multiple product cues to assess product quality. The authors have tested the simultaneous effects of multiple product cues in Pay-what-you-want (PWYW) online settings. PWYW lacks posted prices and allows buyers to decide the prices. This paper investigates how consumers process multiple cues of varying diagnostic nature simultaneously and form product quality perceptions. Specifically, study 1 examines the interactions among seller reputation, online product presentation, and external reference price and study 2 examines the interaction effect of third-party reviews and online product presentation and the external reference price. The results add to the theoretical domain by suggesting that consumers' online cue processing behaviour is much more complicated than previously presented in the literature.     

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 informational value of multi-attribute online consumer reviews: A text mining approach

In the digital age, customers use online reviews to minimize the risks associated with purchasing a product. Major online retailers help customers choose the right product by exposing reviews that received many “helpful” votes at the top of the review section. Given that reviews that have received the maximum helpfulness votes are considered more important in purchase decisions, understanding determinants of helpfulness votes offers clear benefits to online retailers and review platforms. This study focuses on the effect of review informativeness, which is measured by the number of attributes discussed in a review, and its interplay of review valence on customers' perception of review helpfulness. We applied a word-level bigram analysis to derive product attributes from review text and examined the influence of the number of attributes on the review's helpfulness votes. More importantly, we also suggested the moderating role of review valence. Estimation results of the Zero-inflated Poisson models on 21,125 reviews across 14 wireless earbuds indicated that as more attributes are discussed in a review, the more the review can earn helpfulness votes from customers. Furthermore, the positive association between the number of attributes and helpfulness was enhanced among negative reviews. This study contributes to customers' information processing literature and offers guidelines to online retailers in designing a better decision support system.     

Understanding online product ratings: A customer satisfaction model

Online product ratings have become a major information source for customers, retailers, and manufacturers. Both practitioners and researchers predominantly interpret them as a reflection of product quality. We argue that they in fact represent the customer's satisfaction with the product. Accordingly, we present a customer satisfaction model of online product ratings which incorporates the customer's pre-purchase expectations and actual product performance as determinants of ratings. We validate our model by applying it to two datasets collected at the German website of Amazon.com. The results indicate that both factors have a significant influence on online product ratings, supporting the proposed interpretation of ratings.     

Cutting Through the Online Review Jungle — Investigating Selective eWOM Processing

Consumers frequently rely on online reviews, a prominent form of electronic word-of-mouth (eWOM), before making a purchase decision. However, consumers are usually confronted with hundreds of reviews for a single product or service, as well as rich information cues on online review websites (review texts, helpfulness ratings, author information, etc.). In turn, consumers face more information cues on online review websites than they can or want to process, and are likely to proceed selectively. This paper investigates selective processing of such eWOM information cues. Results of Study 1, an exploratory study using verbal protocols, confirm that consumers display selective eWOM processing patterns and are able to articulate them. Study 2 develops and applies a measurement instrument to capture these patterns. A subsequent cluster analysis on members of a large-scale online panel (N = 2,295) indicates five prominent eWOM processing types, termed “The Efficients”, “The Meticulous”, “The Quality-Evaluators”, “The Cautious Critics”, and “The Swift Pessimists”. Insights of this research can help firms to better understand consumers' eWOM processing and improve the user-friendliness of online review websites.     

The influence of online product recommendations on consumers’ online choices

This study investigates consumers’ usage of online recommendation sources and their influence on online product choices. A 3 (websites) × 4 (recommendation sources) × 2 (products) online experiment was conducted with 487 subjects. Results indicate that subjects who consulted product recommendations selected recommended products twice as often as subjects who did not consult recommendations. The online recommendation source labeled “recommender system,” typical of the personalization possibilities offered by online retailing, was more influential than more traditional recommendation sources such as “human experts” and “other consumers”. The type of product also had a significant influence on the propensity to follow product recommendations. Theoretical and managerial implications of these findings are provided.     

An investigation on the effectiveness of hedonic versus utilitarian message appeals in luxury product communication

This research studies the role of hedonic versus utilitarian message appeals in luxury goods communication, investigating how using one or the other type of message appeal affects product perceived luxuriousness and, in turn, product attitude, and consumers' willingness to buy. This research presents three experiments in which message appeal and brand prominence have been manipulated, while perception of luxuriousness, attitude toward luxury products, willingness to buy them and consumers' conspicuous consumption orientation have been measured. Hedonic, compared with utilitarian, message appeals increase perceived luxuriousness, thereby increasing product attitude and consumers' willingness to buy the product promoted. This effect is particularly likely to occur for consumers with lower levels of conspicuous consumption orientation and for products carrying lowly prominent logos. We extend the literature on luxury communication by studying the effect of hedonic versus utilitarian message appeals on consumers' responses, and the literature on hedonism versus utilitarianism by studying this dichotomy in the context of luxury goods communication. This research suggests that different message appeals used in luxury goods communication produce different effects on consumers' responses and that this differential effectiveness is particularly likely to manifest for certain types of consumers and certain types of luxury products.     

The effect of negative online customer reviews on brand equity and purchase intention of consumer electronics in South Africa

This study investigated the effect that negative online customer reviews have on brand equity and purchase intention. This research examined the influence of negative electronic word of mouth (eWOM) on brand equity, as influenced by customer review quality, product involvement and source credibility. A 3 (high quality review versus low quality review versus no review) × 2 (high product involvement versus low product involvement) factorial experiment with 236 respondents was conducted. The results revealed that the presence of negative eWOM has a significant detrimental effect on brand equity and purchase intention. Furthermore, the effect of negative online customer reviews is more detrimental to the brand equity of a high involvement product than a low involvement product. The results also revealed that high quality reviews are more influential than low quality reviews with respect to brand equity, and the difference between the levels of eWOM source credibility has no significant effect on brand equity.     

Consumer responses to functional,aesthetic and symbolic product design in online reviews

This research addresses calls to consider consumer responses to product design along three dimensions: functional, aesthetic, and symbolic design. Based on an analysis of online consumer reviews, this research sheds light on the role of all three design dimensions and reveals how each uniquely contributes to consumers' behavioral responses directly and indirectly though emotional arousal—a key mediator. Furthermore, an important distinction—rooted in consumer information processing models—is made between low-involvement and high-involvement products. The results indicate that the effectiveness of each of the three design dimensions differs depending on the level of product involvement. Taken together, the research findings highlight the importance of taking all three design dimensions into account, including the symbolic design dimension, which has received relatively little attention to date.     

Determinants of Opening-Forwarding E-Mail Messages

E-mail viral marketing is today perceived as a form of electronic word-of-mouth (eWOM) advertising in which firms use provocative content to motivate unpaid peer-to-peer communication of persuasive messages from identified sponsors. However, the success of this practice depends on a range of factors, including those we explore and refer to in the present research as individuals' opening and forwarding of messages. From the theoretical perspectives of the social capital theory and the processing-information approach in a persuasive context, we explore how individuals' structural, relational, and cognitive social capital; the message characteristics; individuals' motivations; and the situational context impact the intention to open and forward viral messages. The empirical analysis of the structural model provides new and relevant theoretical and business implications for advertising.     

Addressing negative product attribute reviews: The case of advertising product attributes and corporate social responsibility information

Negative product reviews are bad for businesses. They can adversely affect product sales, brand evaluations, and brand loyalty. To attend to negative reviews, one approach is through advertising products or company virtues. The current study examines the efficacy of different advertising approaches (core product attribute advertising vs. non-core product attribute advertising vs. corporate social responsibility [CSR] advertising) in helping dilute the negative effect of dissimilar negative product attribute reviews (negative core product attribute reviews vs. negative non-core product attribute reviews). Through four experiments, we found that when the non-core attribute of a product had negative reviews, a core attribute advertising approach weakened the effect of negative reviews. However, CSR advertising was less effective. Furthermore, when the core attributes of a product had negative reviews, a non-core attribute advertising effort did not weaken, but actually augmented the impact of negative reviews. In addition, when the core attributes of a product received negative reviews, CSR advertising decreased the influence of negative reviews. Our findings provide theoretical and managerial implications for managing negative online reviews of product attributes.     

Audience Response to Product Placements: An Integrative Framework and Future Research Agenda

This study comprehensively reviews the literature on product placements to develop an integrative conceptual model that captures how such messages generate audience outcomes. The model depicts four components: execution/stimulus factors (e.g., program type, execution flexibility, opportunity to process, placement modality, placement priming); individual-specific factors (e.g., brand familiarity, judgment of placement fit, attitudes toward placements, involvement/connectedness with program); processing depth (degree of conscious processing); and message outcomes that reflect placement effectiveness. The execution and individual factors influence processing depth (portrayed as a high—low continuum), which in turn impacts message outcomes. The outcomes are organized around the hierarchy-of-effects model into three broad categories: cognition (e.g., memory-related measures such as recognition and recall); affect (e.g., attitudes); and conation (e.g., purchase intention, purchase behavior). This study integrates potential main and interaction effects among model variables to advance a series of theoretical propositions. It also offers an extensive research agenda of conceptual and empirical issues that future work can address.     

Interactive influence of genre familiarity,star power,and critics' reviews in the cultural goods industry: The case of motion pictures

Academic research pertaining to the marketing of cultural products such as Broadway shows, books, music, and movies has identified a product's genre (or type), star power, and critics' reviews as important factors influencing the market performance of an individual product. Prior research, however, has not investigated the joint influences of these factors. The current study extends previous research by empirically investigating the managerially relevant interactive influences of these factors within the context of the motion‐picture industry. For example, should producers of more familiar genre movies, such as dramas and comedies, feature popular, but expensive, stars? Real‐world data from two distinct time periods are used to test the hypotheses. The findings are consistent across the two time periods and reveal that for more familiar genre movies, star power and the valence of critics' reviews have less impact on the movie's performance in the market. In contrast, for the less familiar genre movies, stronger (vs. weaker) star power and more (vs. less) positive reviews have positive influence on the market performance. Further, for movies with less star power, the valence of critics' reviews has no impact on the performance. In contrast, for movies with greater star power, more (less) positive reviews have positive (negative) influence on movie performance. Managerial and theoretical implications, along with limitations of the findings and directions for future research, are offered. © 2005 Wiley Periodicals, Inc.     

A nonconscious processing explanation of consumer response to product design

Even though there is an established body of research concerning nonconscious memory processes and how they may influence preference formation, the importance of this work for understanding consumers' responses to product designs has been largely overlooked. Although evidence that product design can have a significant influence on consumers' reactions to products continues to grow, the process(es) by which responses to designs are formulated has received relatively little attention. The primary purposes of this article are to develop a nonconscious processing explanation of consumer response to product design and to focus attention on the area of design processing. A conceptual basis for understanding product design response formation is provided by research relating to various aspects of nonconscious processing (e.g., mere exposure, implicit learning). The implications of the proposed approach for consumer behavior and marketing are explored. Finally, several suggestions for future research directions are discussed. © 1999 John Wiley & Sons, Inc.