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The purpose of this paper is to integrate broaden theoretical perspectives in the investigation of the key antecedents of consumers’ continuous review contribution behavior on restaurant guide online opinion platforms (OOPs). Integrating both rational and relational theoretical perspectives with an extension of the investment model, a research model was proposed to explain what factors influence consumers’ intention to continuously contribute electronic WOM (eWOM) on OOPs.

The research model was empirically tested with an online survey study of 438 eWOM contributors from a leading Chinese restaurant guide OOP, Dianping.com.

The results indicated that satisfaction, affective commitment, and continuance commitment were key determinants of consumers’ continuance intention to contribute eWOM on the platform. Satisfaction was driven by concern for other consumers, social benefits, platform assistance, and venting negative feelings. Quality of alternatives and investment size significantly affected continuance commitment.

The selection of respondents is bound to the China area within a particular OOP, although the chosen OOP is a leading one in China. In addition, this study focuses on the perspective of commitment, but some social factors are neglected.

This paper provides an integrated theoretical framework to explore the factors determining consumers’ continuance intention to contribute restaurant reviews on OOPs. From both rational and relational theoretical perspectives, the proposed model reveals the factors that encourage consumers to continue contributing eWOM on OOPs.

Interest in the Electronic Word-of-Mouth (eWOM) in connection with tourism is constantly growing not only among consumers but also among theoreticians. Therefore, the objective of this chapter is to provide an overview of studies that focus on eWOM in the tourism sector using the snowball method. The article is based on a review of the literature of 60 studies that focus not only on consumer behavior in tourism and the impact of eWOM on tourism supply but also on the impact of hotel managers' responses to other consumer behavior and tourism companies. The results of the studies show that eWOM has a significant impact not only on consumer behavior but also on tourism supply. Manager responses can also strongly affect other consumer behavior in decision-making. When eWOM is distributed, consumers are influenced by their emotions, motives, and also by the websites to which they have decided to contribute. The chapter proposes further research areas for different authors.

This paper examines whether guests contribute sWOM (social word of mouth) on different SNSs (social networking sites) regarding various personal motivations. SNSs have changed the way guests eat and experience their food and dishes. Marketing managers have effectively targeted SNSs as a marketing tool, yet have little research about drivers of guests' sWOM contribution on SNSs has been done. A model including the significant motives: (1) experiences, (2) opinion leadership, (3) reflection of self and (4) need for unique is tested to investigate their positive effects on contribution behavior of social media guests.

The data collected from 411 guests by using the snowball method was used for analysis. The structural equation modeling was applied to examine the relationships among the constructs and test the eight proposed hypotheses.

Results reveal that experiences, opinion leadership, reflection of self and need for unique were positively associated with contributing sWOM of restaurants. Furthermore, those who have positive experiences tend to be opinion leadership and reflection of self. And guests who show reflection of self, they are more likely to have opinion leaders and show need for uniqueness. Our study expands the existing frameworks of sWOM contribution by identifying various motivations and labeling sWOM. Findings provide restaurant managers with managerial implications for online marketing strategies on SNSs to attract sWOM contribution among guests.

It has some limitations while discovering the motivations of positive sWOM contribution. First, we only focused on the motivation of contributing positive sWOM, while negative sWOM received many arguments in changing attitudes toward buying products or services. Second, we collected data in Vietnam only without comparing with different countries. Future research could explore further cross-cultural perspectives to fill the gap. Third, this study explored sWOM contribution in service environment, sWOM contribution from service context may be slightly different from those of product brands.

These findings highlight the motivations of sWOM contribution that restaurant managers must recognize and make use of it. SNSs have given power to consumers to post everything at anytime and anywhere they like, therefore restaurant managers need to deeply understand why their consumers contribute sWOM. In digital era, customers and guests have become the ultimate tools for promoting product or service brands. The marketing managers should create an online platform in order to facilitate their consumers to discuss their brand frequently (Charu et al., 2018). Restaurants should have policies to push positive eWOM maximally and also reduce advertising costs.

This is one of the first studies on sWOM contribution of what motivate guests to contribute their sWOM on SNSs. Theoretically, this study offers deep insights into the links between various motivations and sWOM in foodservice context. Managerially, understanding these motivations allow marketing managers create effective policies that motivate guests to contribute positive word of mouth.

Based on message source theory, the purpose of this paper is to use positive electronic word‐of‐mouth (eWOM) settings to examine the influence of message source credibility on brand attitude (brand trust, brand affection, and purchase intention). The current study also uses the elaboration likelihood model to examine the moderating effect of product involvement on the relationships between message appeals (rational vs emotional) and brand attitude, as well as between message source credibility and brand attitude.

Data were collected via internet questionnaires. Based on the internet investigation and pretest, this study chose the stimuli for research products, virtual brands, eWOM, and message source credibility. Via a 2 (notebooks vs shampoo) *2 (appeal: rational vs emotional) experimental design, 211 effective samples were collected to verify the hypotheses of this study.

The results, for both notebooks and shampoo, are: the positive eWOM message with higher message source credibility indicates a better brand attitude than the eWOM message with lower message source credibility, and this effect is not moderated by the degree of product involvement, indicating its robustness. Second, with a high degree of product involvement, the rational appeal indicates a better brand attitude than the emotional appeal; no significant difference is found when product involvement drops to a low level.

Previous research investigating the moderating effect of involvement on the effects of message‐appeal types and the message source credibility of eWOM is rare. The main contribution of this study is to fill this gap.

In light of the growth of internet usage and its important role in the field of e‐commerce, electronic word‐of‐mouth (eWOM) has been changing people's behavior and decisions. People count on other users' opinions and information; they sometimes even make offline decisions based on information acquired online. The purpose of this paper is to conceptualise eWOM activity from an input‐process‐output (IPO) perspective; propose a classification framework based on the identified academic literature; analyze eWOM literature in terms of quantitative development and qualitative issues that are useful to both academics and researchers; and provide directions and guidelines for future research studies in eWOM.

The authors performed a systematic literature review of peer‐reviewed published journal articles and examined the current state of knowledge on eWOM literature based on a comprehensive search of several leading databases. In total, 94 articles were identified that comprised contributions from different strands of eWOM research. The scope of this investigation was limited to the timeframe of 2000‐2009.

The present study finds that research in eWOM is relatively new and has evolved only during the last ten years. This ten‐year study is deemed to be representative of the available eWOM literature. It is also shown that many scholars have incorporated established theories to explain eWOM communication phenomena. The current study not only fills the current gap in eWOM research but also provides a roadmap in analyzing eWOM communications.

This study serves as a consolidated database that may be used to guide future research. It provides a structured approach to analyzing the literature and identifying trends and gaps in order to map out an appropriate agenda for eWOM research. The proposed integrated classification framework can serve as a roadmap for academic research.

This paper systematically reviews the current state of eWOM research. To contribute to the development of a more comprehensive database for eWOM research, a classification framework of the eWOM literature is presented, building on the IPO model, by summarizing and organizing prior research into three areas covering antecedents, processes, and consequences of eWOM. The authors further summarize the theories and models that previous scholars have applied to their studies.

The purpose of this study is to adopt stimulus-organism-response (S-O-R) theory to reveal the impact of electronic word-of-mouth (eWOM) on buying intentions of young consumers in the presence of hedonic brand attitude (HBA) and utilitarian brand attitude (UBA) as mediators, among smartphone customers in the context of brand fan pages in Facebook.

The paper uses a single cross-sectional design to survey a sample of 326 young online customers present in leading smartphone brand fan pages on Facebook in India. A structured questionnaire was used to collect data and replies were recorded on a Likert scale (five-point). The data was subjected to structural equation modelling for model and hypotheses testing.

eWOM has a significantly positive influence on the buying intentions of the young. Both HBA and UBA partially mediate the influence of eWOM on buying intentions.

The study examines only the personal-oriented functions of attitude and does not investigate the role of social dimensions of attitudes. Its scope is confined to smartphones in the consumer electronics segment and only Facebook among social networking sites.

A theoretical contribution to eWOM literature is made by studying it under the lens of S-O-R theory and functional theory of attitudes. Measurement of two different dimensions of attitude, i.e. hedonic and utilitarian, may facilitate managers to comprehend the source of variance in consumers’ decision-making behaviour in the online context.

The only study to explore brand attitude as a mediator in its multi-dimensional form, in the context of social eWOM.

This paper aims to examine the optimal promotion strategy of an e-retailer, who may advertise, or launch rebates initiative to encourage consumers' disseminating electronic word-of-mouth (eWOM) messages, with an aim to boost product sales.

This paper analyzes the decisions of the e-retailer in a two-period model, using utility function approach and backward induction method, and obtains the optimal solutions in four promotion strategies.

The study finds that rebate scheme greatly impacts the timing of advertising, and neither lower nor higher consumers' eWOM effort invariably benefits the retailer, rather, a medium level is the best choice for the retailer. When eWOM impact power is at a relatively high level, it can supplement advertising effect to attract more consumers' purchase. Otherwise, eWOM may counteract the role of advertising.

Different from the extant literature focusing on advertising or eWOM without rebates, the paper studies the issue of advertising and eWOM with rebates in two- period model which seldom addresses before the authors examine the optimal timing of advertising and eWOM with/without rebates in four promotion strategies i.e. the A-NE model the NE-A model the A-ER model and the ER-A model.

The purpose of this paper is to examine the effects that reference prices and associated information sources (websites that consumers use to explore and their friends who have similar perspectives on value) have on deal evaluation and intention to disseminate electronic word of mouth (eWOM).

A stratified survey is conducted to empirically test the relations between reference prices, associated information sources (the top five Consumer-to-consumer (C2C) websites and top five Facebook friends with similar perspectives and values on consumption), deal evaluation, and eWOM intention. The study uses a Facebook API to help participants pick five Facebook friends to act as their favorite sources for advice on shopping.

The results suggest that consumers’ deal evaluations (as shaped by the recency effects of previous exposure to prices and the influence of Facebook friends and C2C websites) have carry-over effects on their eWOM intentions. The influence of Facebook friends and C2C websites on deal evaluation is as powerful as that of reference price, especially concerning the mean and the lowest prices.

The findings encourage marketers to invest their resources in targeting online groups, and suggest that C2C website marketers should set their offer prices between the mean and the lowest prices.

This study extends prior research on the motives for eWOM dissemination and elaborates an approach to initiate eWOM intention through deal evaluation.

Currently, consumers can easily access social media to share information and experiences. How a relationship between these consumers influences their decisions has not been clearly investigated. When consumers participate in information sharing activities, they usually communicate with each other and can perceive their social distance from others. Thus, the purpose of this paper is to explore the direct and indirect effects of perceived social distance on eWOM sharing intentions.

Specifically, a moderated mediation model was validated, in which the indirect effect of perceived social distance on eWOM sharing intentions through reciprocity expectations was moderated by trust.

Perceived social distance had a positive indirect effect on eWOM sharing intentions through reciprocity expectations, which was found to be negatively moderated by trust.

This study integrates the concept of perceived social distance into the eWOM research area. Moreover, this result adds to the s-commerce literature by specifying the conditions of the indirect effect of perceived social distance through reciprocity expectations on eWOM sharing intention.

The purpose of this study is to address a recent call for additional research on electronic word‐of‐mouth (eWOM). In response to this call, this study draws on the social network paradigm and the uses and gratification theory (UGT) to propose and empirically test a conceptual framework of key drivers of two types of eWOM, namely in‐group and out‐of‐group.

The proposed model, which examines the impact of usage motivations on eWOM in‐group and eWOM out‐of‐group, is tested in a sample of 302 internet users in Portugal.

Results from the survey show that the different drivers (i.e. mood‐enhancement, escapism, experiential learning and social interaction) vary in terms of their impact on the two different types of eWOM. Surprisingly, while results show a positive relationship between experiential learning and eWOM out‐of‐group, no relationship is found between experiential learning and eWOM in‐group.

This is the first study investigating the drivers of both eWOM in‐group and eWOM out‐of‐group. Additional research in this area will contribute to the development of a general theory of eWOM.

By understanding the drivers of different eWOM types, this study provides guidance to marketing managers on how to allocate resources more efficiently in order to achieve the company's strategic objectives.

No published study has investigated the determinants of these two types of eWOM. This is the first study offering empirical considerations of how the various drivers differentially impact eWOM in‐group and eWOM out‐of‐group.