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The purpose of this study is to conduct a systematic study of important research trends and published electronic word of mouth (eWOM) studies over the past 20 years in the emerging economy. This research is designed to identify the key areas of eWOM based on the Antecedents-Consequence-Intervention (ACI) framework. This paper is also aimed to analyze the current research status of each WOM area and critically review each area for developing future research directions.

616 articles were selected from 112 journals for in-depth review analysis. For the systematic review of articles, an ACI framework was adopted. This paper used systematic review analysis methodology to critically analyze important research studies in each area of the ACI framework with a set of research questions.

Results identify six significant areas of eWOM, i.e. WOM antecedents, outcomes, senders, receivers, eWOM platform and eWOM management representing the whole environment. The result highlights increasing research interest on mixed eWOM and rich eWOM content and market-level source credibility factors. Research also identifies research gaps based on the ACI framework.

Analyzing the recent trends in the eWOM environment with the SLR approach and linking these trends to the ACI framework with a future research agenda in the emerging market indicated a pioneering attempt in eWOM research.

This study aims to understand a customer-purchase mechanism in the artificial intelligence (AI)-powered chatbot context based on the elaboration likelihood model (ELM) and technology acceptance model (TAM). The first objective is to examine how to boost chatbot adoption. The second objective is to investigate the role of information characteristics, technology-related characteristics and attitude toward AI in purchase intention.

Data was collected from a sample of 492 users in Vietnam, who are potential customers of chatbots for purchase. Structural equation modeling was applied for data analysis.

Results illustrate that chatbot adoption is significantly influenced by information credibility, technology-related factors (i.e. interactivity, relative advantage and perceived intelligence), attitude toward AI and perceived usefulness. Moreover, information quality and persuasiveness motivate information credibility. Information credibility and attitude toward AI are the essential motivations for perceived usefulness. Finally, chatbot adoption and information credibility determine purchase intention.

The results are insightful for practitioners to envisage the importance of chatbot use for customer purchase in the AI scenario. Additionally, this research offers a framework to practitioners for shaping customer engagement in chatbots.

The value of this work lies in the incorporation of technology-related characteristics into the two well-established theories, the ELM and TAM, to identify the importance of AI and its applications (i.e. chatbots) for purchase and to understand the formation of perceived usefulness and chatbot use through information credibility and attitude toward AI.

This study aims to understand the effect of cultural dimension (individualism/ collectivism) on promotional rewards (social or economic) resulting in incentivizing consumers to engage in electronic word-of-mouth (eWOM), further impacting their repurchase intentions.

In Study 1, a 2 (culture: individualism vs collectivism) × 2 (promotional rewards: social vs economic) between-subjects design was used. Structural equation modeling was used to test the hypotheses. In Study 2, culture was measured instead of just being manipulated. The authors used regression analysis in this study.

Owing to the characteristics of collectivistic individuals, consumers in collectivistic cultures were more likely to respond to social rewards as an incentive to engage in eWOM. However, consumers in individualistic cultures were more motivated to engage in eWOM when economic rewards were offered.

Despite the global nature of eWOM, little research has explored the effects of cultural traits on consumer response to amplified eWOM strategy. Additionally, though many organizations now offer various promotional incentives to reviewers, little research has explored the effects of promotional offers on a reviewer’s subsequent behavior, and no research has explored the relationship between cultural dimensions and current and future response to promotional eWOM rewards.

The moderating role of situational context in the effects of electronic word-of-mouth (eWOM) on online purchase intention through brand image has found sparse empirical support. This study thus aims to examine whether situational context affects the direction and strength of the relationships between aspects of eWOM and brand image that lead to online purchase intention.

To extend the existing research, the authors tested the model using a sample of 546 online shoppers during the fourth wave of COVID-19 in Ho Chi Minh City. Specifically, the testing of the direct relationships and the mediating role of brand image occurred using measurement and structural models. The authors then created a moderated mediation model to examine the moderating role of situational context. Furthermore, the authors probed the interactions by identifying changes in the relationships from eWOM to online purchase intention through a brand image at different levels of situational context.

Without situational context’s moderating effect, brand image positively partially mediated the influence of either eWOM credibility or quantity on intention. Situational context’s moderating effect then explains why high- versus low-level disease-avoidance customers seek less eWOM credibility and more eWOM quantity to develop brand images and shape their intentions.

The findings have theoretical implications for understanding the pressure of disease avoidance on customers’ online purchase intentions. Among the practical implications of the research are tactics for profit and non-profit purposes.

This study explores the role of smart voice assistants (SVAs) as purchase recommenders, a phenomenon the authors term “word of voice” (WOV) communication. By integrating human–computer interaction (HCI) literature and electronic word of mouth (eWOM) research, the authors examine what makes consumers trust in SVA-transmitted WOV communication following their initial interactions with their SVAs during a purchase process (i.e. post-trust); and the authors propose that consumers' perceptions of their SVAs' smart capabilities (i.e. cognitive, emotional and social) are critically important for building this trust. Moreover, the study explores the influence of post-trust on consumers' adherence to WOV communication, measured by three types of behavioural intentions.

Data from a survey of 202 United States (US)-based SVA users who employ them to obtain purchase recommendations were collected and analysed. They confirmed the validity of the measurement scales and provided input for the partial least squares modelling (PLS-SEM).

The results demonstrated that post-trust in WOV communication partially or totally mediates the effect of smart capabilities on consumer adherence to WOV communication; identified the key role of cognitive, emotional and social smart capabilities for building consumers' post-trust in WOV and demonstrated the influence of this trust on behavioural intentions.

The present study contributes by examining the employment of SVAs as recommenders during the purchase process; the authors term this type of communication WOV. It analyses consumers with experience of using SVAs in their purchase processes, revealing that post-trust in WOV communication is the psychological mechanism that explains how the smart capabilities of SVAs determine consumer adherence to the recommendations they receive.

This study aims to identify the relationships between the electronic word of mouth (eWOM), brand image (Brand) and online purchase intention (INT) of young customers during the coronavirus disease 2019 (COVID-19) pandemic period.

The covariance-based SEM and the multi-group invariance analysis (MGA) were applied to investigate the proposed model with the data collected via an online survey during the fourth wave of COVID-19 in Vietnam.

The results showed that eWOM quantity (eQuan) has a significant positive effect on eWOM credibility (eC) in the context of the COVID-19 pandemic. Furthermore, whereas Brand positively partially mediates the relationship between eQuan and INT, this construct plays a positively fully mediating role in the relationship between eC and INT. Finally, the results indicated that there is no significant difference in the invariance indicators related to the gender of respondents.

This study has some contributions not only to the theoretical framework for understanding the online purchase behaviour of young customers in the pandemic context, but also to the practical implications of how to use different dimensions of eWOM accordingly to enhance a company's brand image in the online business environment.

This research investigates consumer intention to follow online community advice. Applying the technology acceptance model (TAM) to the context of online restaurant communities, the study empirically examines the effects of perceived usefulness, perceived ease of use, attitude and trust on the intention to follow online advice.

The data were collected from 360 members of online restaurant communities on Facebook and analyzed using structural equation modeling (SEM).

The findings revealed that trust, perceived usefulness and attitude are key predictors of the intention to follow online restaurant community advice.

Extant research on the influence of online reviews on consumer behavior in the restaurant industry has largely focused on the characteristics of the review, reviewers or readers. Moreover, other studies have investigated consumers' motivations to write online restaurant reviews. This study, however, takes a different approach and examines what drives consumers to follow the advice from online restaurant communities.

In recent times, the growing use of electronic word of mouth (eWOM) has attracted consumers, organizations and marketers alike. The objective of this study is to summarize and compare the current mass of eWOM research published in leading hospitality and tourism journals with research published in the other fields of both business and management.

This study uses multiple bibliometric analysis methods, including citation, co-citation, keyword and co-word analysis. It compares various assessments of eWOM research published in 399 selected business publications and 398 selected hospitality/tourism publications (ABDC A and above and ABS 3 and above) between 2003 and 2021.

The co-citation analysis identified three thematic areas under each of the domains, i.e. in the hospitality/tourism field, the three themes included eWOM and behavior; eWOM and social media; and eWOM as a marketing tool. Similarly, under the business field (encompasses remaining business and management subdisciplines), the three themes are eWOM and sales, eWOM quality and attributes; and eWOM, information and consumer. Additionally, the word and co-word analysis mapped the comparative evolution of research in these two fields. The study advocates more research focusing on less researched platforms using diverse data, recommender systems adoption and application of eWOM in the business to business (B2B) context.

This study summarizes the overall theoretical and conceptual structure of eWOM research in both business and hospitality/tourism fields; based upon which, several recommendations for future research are proposed.

By comparing the developments in the specialized hospitality/tourism sector with broader management literature using multiple, complementary techniques, this study brings out important insights for hospitality/tourism researchers.

This study aims to examine the effect of social influence, environmental concerns and altruism on consumer purchase intention of eco-fashion (PIEF). In addition, this study, exploring the essential behavioral outcomes influenced in marketing, seeks to deepen the existing insight in this area.

To obtain the required data, the authors surveyed a group of people with previous experience in the purchase of eco-friendly apparel. The research hypotheses were tested using the structural equation modeling technique.

According to the results, social influence had the most significant impact on PIEF. Also, environmental concerns and altruism had a significant effect on PIEF. The results further indicated that eco-fashion purchase intention, in turn, influenced consumer willingness to engage in eWOM and pay a price premium.

The results of the present study guide marketing practitioners for the segmentation of target consumers, as the information on consumers’ natural needs and desires in a socio-cultural context is of significant use to fashion managers to understand their customers deeply. This information also helps them discover better ways of designing their marketing campaigns.

This paper contributes to research by advancing an understanding of how consumers make eco-fashion consumption decisions in purchasing apparel and provides businesses with managerial insights into devising marketing strategies to promote eco-fashion consumption, which facilitates fashion companies’ development of a sustainable fashion supply chain.

Este estudio examina el efecto de los factores influencia social, preocupación medioambiental y altruismo en la intención de compra de moda ecológica (PIEF) por parte de los consumidores. Además, este estudio, que explora los importantes resultados conductuales influenciados en el área del marketing, pretende profundizar en los conocimientos existentes en esta área.

Se encuesto a un grupo de personas con experiencia previa en la compra de ropa ecológica. Las hipótesis de la investigación se contrastaron con SEM.

La influencia social fue la que más influyó en el PIEF. Asimismo, la preocupación por el medio ambiente y el altruismo tuvieron un efecto significativo en el PIEF. Los resultados indicaron además que la intención de compra de moda ecológica, a su vez, influía en la disposición del consumidor a participar en el eWOM y a pagar un sobreprecio.

Los resultados del presente estudio orientan a los profesionales del marketing en la segmentación de los consumidores objetivo, ya que la información sobre las necesidades y deseos naturales de los consumidores en un contexto sociocultural es de gran utilidad para que los gestores de la moda conozcan en profundidad a sus clientes. Esta información también les ayuda a descubrir mejores formas de diseñar sus campañas de marketing.

El artículo contribuye a la investigación al avanzar en la comprensión de cómo los consumidores toman decisiones de consumo de moda ecológica en la compra de prendas de vestir y proporciona a las empresas ideas de gestión para diseñar estrategias de marketing que promuevan el consumo de moda ecológica, lo que facilita a las empresas de moda el desarrollo de una cadena de suministro de moda sostenible.

环境关注和利他主义等因素对消费者购买环保时装意向（PIEF）的影响。此外, 这项研究探讨了在营销领域有影响的重要行为结果, 试图深化这一领域的现有见解。

我们调查了一组有购买生态友好服装经验的人使用结构方程模型（SEM）方法对研究假设进行了检验。

社会影响对PIEF的影响最大。此外, 对环境的关注和利他主义对PIEF也有重大影响。结果进一步表明, 环保时装的购买意向反向影响了消费者参与eWOM和支付价格溢价的意愿。

且结果只限于环保时装消费。

本研究的结果为营销从业者提供了关于细分目标消费群体的指导。消费者在特定社会文化背景下的自然需求和欲望等信息对于时尚经理人深入了解他们的顾客来说有重要作用, 而这些信息也有助于他们探索更好地设计营销活动的方法。

为企业提供了设计促进环保时装消费的营销策略的管理建议。这促进了时尚公司发展可持续时尚供应链, 为该领域研究做出了贡献。

This study aims at building a framework for the electronic word-of-mouth (eWOM) response under the social media environment. The elaboration likelihood model was adopted to explain how message source credibility and message appeal jointly influence the eWOM response process, while source credibility provides a central route and message appeal plays a peripheral route for information processing.

This study used a scenario design to test the decision behavior in the Facebook environment through message content manipulation. A convenience sampling method was adopted in this study. We collected 203 valid questionnaires and tested this research model with LISREL 8.8. This study used a two-stage structural equation modeling data analysis method with LISREL 8.8, by which the measurement model was assessed through confirmatory factor analysis for the reliability and validity of the research model, and the causal relationship among factors was assessed through exploratory factor analysis .

The results showed that 53% variance of eWOM responses could be explained by message source credibility and emotional message appeal from the elaboration likelihood model perspective. Message source credibility plays a central role in the social media environment. The model was further tested with a demographic profile analysis for both gender and age. It is found that a female user is influenced by both source credibility and emotional appeal, but a male user is only influenced by message source credibility. The mature age group is more responsive to eWOM messages.

The sample might not represent all social networking sites (SNS) users. The participants represent a small segment of the Facebook population around the globe. Secondly, this research design could be improved by using more recreational messages to test the effects of message appeal and message source credibility. Thirdly, the mobile phone is a type of physical product rather than an experiential product. Future studies could try to identify the same eWOM determinants with different SNS functions, for example, the inbox message function. Similarly, Facebook users are allowed to use both text and pictures to disseminate promotional messages.

This study provides an insight for SNS administrators regarding the determinants of driving more customer responses toward a message. Message source credibility and message appeal are identified as the antecedents for eWOM responses in SNS. Companies could make use of this finding to improve their marketing communication strategy in SNS. The finding can inform administrators of the importance of focusing on both customers’ psychological state and message attributes during the dissemination of promotional messages to improve the efficiency of the promotional effort. Companies aimed at receiving different types of eWOM responses in SNS may need to consider other factors for creating their promotional messages.

Previous studies have mainly identified factors influencing eWOM responses from the people-centered variables such as personal traits and social relationships. This study proposes that the eWOM response is a dual information processing process that can be explained by the ELM. When a user processes information in SNS, he follows both the central route and the peripheral route (i.e. source credibility and message appeal) which can influence the eWOM response. It is the first time that the source credibility is investigated as the central route in ELM model.