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Online reviews are increasingly available for a wide range of products and services. Several studies have demonstrated the benefits of the presence of customer reviews to an online retailer, but the issue of what makes online reviews helpful to a consumer in the process of making a purchase decision remains uninvestigated. The paper aims to discuss this issue.

Given the strategic potential of online reviews, this study drew on past research to develop a conceptual understanding of the components of helpfulness and to further empirically test the model using actual online review data from iPeen.com in Taiwan. A content analysis of 989 reviews across four products identified the interplay effects of review sidedness, reviewer’s expertise, and product type on the helpfulness of an online review.

For search goods, consumers consider two-sided reviews to be more helpful than one-sided reviews when the reviewers are experts in writing such articles, whereas they consider two-sided reviews to be equally helpful as one-sided reviews when the reviewers are novices. Conversely, for experience goods, consumers consider one-sided reviews to be more helpful than two-sided reviews when the reviewers are experts in writing review articles, but they consider one-sided reviews to be equally helpful as two-sided reviews when the reviewers are novices.

With an understanding of how review sidedness affects online review helpfulness, online retailers could establish the policy for promoting the helpfulness of reviews more effectively.

This research yields at least three important contributions: first, it contributes to the message sidedness literature by showing which arguments (one- or two-sided) are deemed to be helpful; second, it contributes to the online peer review literature by demonstrating the importance of considering product type and heuristic cues (i.e. the reviewer’s expertise) when explaining helpfulness; and third, the results in this research demonstrate that people are drawn to dual-processing; that is, the judgment of online review helpfulness is determined by heuristic cues (e.g. the status of the reviewer) and systematic processing (e.g. review content).

This study aims to identify effective ways to promote plant-based foods in quick-service restaurants by considering customers’ food-related health involvement.

This study conducted a 2 (message format: myth/fact or fact-only) × 2 (message focus: benefit- or attribute-focused) × 2 (health involvement: high or low) quasi-experimental design via a scenario-based online survey. A multivariate analysis of covariance and a bootstrapping approach were used to test the hypotheses (N = 365).

The results indicated that message format and focus jointly influenced customers’ perceived health consequences of plant-based foods and purchase intentions; customers’ health involvement altered the two-way interaction between message format and focus; and perceived health consequences mediated the effects of message format and focus as and customers’ health involvement on purchase intentions.

This study identifies the effectiveness of message format and focus in promoting plant-based foods and extends the sustainable product promotion literature by using resource matching theory and the elaboration likelihood model. Future studies should use field studies to examine how can message framing influence customers’ actual behaviors when purchasing plant-based foods.

This study can help quick-service restaurants better promote plant-based foods considering message format and focus and customers’ food-related health involvement.

This is one of only a few studies that have tested how messages containing both negative and positive information about a product could help promote plant-based foods.

This study aims to apply and test the effectiveness of message sidedness and conclusiveness in Google Ads advertising.

Four field experiments on Google Ad campaigns were conducted on the topics of energy and environment, the water–energy–food nexus, and a Higher-Ed program (at the national and local levels).

Two-sided search engine advertisements are more effective than one-sided advertisements in national campaigns but less effective in local campaigns. In national campaigns, conclusive search engine advertisements are more effective in increasing impressions and clicks, but inconclusive advertisements are more effective in increasing the click-through rate (CTR); in local campaigns, inconclusive advertisements are more effective when being one-sided, while conclusive advertisements are more effective when being two-sided. Overall, the two-sided and inconclusive advertisement generates the best results in a national campaign, but the one-sided and inconclusive advertisement generates the best results in a local campaign.

As the first to test sidedness and conclusiveness with Google Ads advertising, the paper provides theoretical and practical suggestions to search engine marketers by identifying the effective copywriting strategies, moderating factors and more measurements of effectiveness.

This study aims to examine the effects of risk disclosure and call to action (i.e. encouraging individuals to consult a health provider before they make any purchase decision) on young adults’ cognitive and behavioral responses to dietary supplement advertising.

A 2 (risk disclosure: absence vs presence) × 2 (call to action: absence vs presence) between-subjects online experiment was conducted with 124 college-attending young adults.

Including risk disclosure in probiotic supplement advertising increased young adults’ perceived message credibility, intentions to ask a medical doctor and sense of confidence in decision-making. The addition of call to action in probiotic supplement advertising improved perceived message credibility, trust in advertised brand, favorable attitude toward brand, intention to ask a medical doctor and purchase intention; however, a significant joint effect was not found between risk disclosure and call to action.

Although risk disclosure and call to action are significant techniques in pharmaceutical and health-care marketing, they have been overlooked by both research and practice of dietary supplement marketing. This study closes this gap by providing empirical evidence to generate a clear idea about the benefits of including risk disclosure and call to action in dietary supplement advertising.

Two or multi-sided platforms - defined as those companies that aim to connect two or more groups of customers leveraging the opportunities provided by indirect network externalities – got massive attention from both scholars and practitioners over the last decade. Entrepreneurship scholars mainly focused on the platform's ability to enable entrepreneurial ventures for the complementors' side, exploring the network-centric view. This study aims to expand it by exploring the broader influence that sides can have on the platform provider's entrepreneurial decisions over time, during the evolution of the two-sided platform.

The study is based on a longitudinal single case study developed over five years. The research presents the born and evolution of Friendz, an Italian two-sided platform.

The research presents a four-phases evolution process that shows how the entrepreneurs may first leverage an existing platform to develop a new venture and then develop his/her own two-sided platform. In this latter phase, the findings show how the sides may actually influence the platform provider's entrepreneurial decisions, both in terms of value proposition design, but also regarding the creation of new ventures.

The study contributes to the two-sided platform literature highlighting new evolutionary paths that expand current literature and highlight the doubling platform approach. Moreover, it contributes to the entrepreneurship literature offering a novel perspective on the entrepreneurial dynamics in two-sided platforms by re-balancing the power between the platform provider and the sides within the double network-centric view.

From a practitioners' perspective, this study offers an evolutionary path and specific tactics related to the evolution of an entrepreneurial venture based on a two-sided platforms that may inspire entrepreneurs working on two-sided platforms on how to use existing platforms and on the management of sides and the value propositions used to target them.

This study takes a novel perspective at the intersection between platforms and entrepreneurship literature streams, exploring the power that sides have over the platform provider in shaping the platform's entrepreneurial evolution. In doing so, it proposes a double network view on two-sided platforms and highlights three network-related tensions that can guide the evolution of the two-sided platforms.

In recent years, increasing competition in communicational network of Iran has led to attracting more attention to marketing and particularly, advertising activities. The aim of this paper is to examine the effect of TV advertising appeals of communication companies (in this study, MTN Irancell Company) on customers' attitude towards their advertising efforts and their brand.

The aim was achieved through an empirical study involving a survey. Of 400 questionnaires sent out, 384 were returned. The dataset from the sample underwent series of statistical analyses, i.e. reliability test, factor analyses (exploratory and confirmatory) and structural equation modelling (SEM).

Factor analyses extracted seven dimensions, i.e. one‐sided appeal, two‐sided appeal, humour appeal, fear appeal, comparative appeal, attitude toward advertising and brand attitude. All related indicators manifested their constructs, respectively. The results show that there is a positive, direct, and significant relationship between: advertising appeals and attitude towards advertising; advertising appeals and brand attitude; and attitude towards advertising and brand attitude.

The paper empirically justified the interrelationship among advertising appeals, attitude toward advertising and brand attitude in an integrated model. Communication companies may find this paper useful as perceptual measures can be empirically substantiated using SEM.

This study aims to assess the relative importance of the argument strength, argument sidedness, writing quality, number of arguments, rated review usefulness, summary review rating and number of reviews in determining the perceived usefulness and credibility of an online review. Additionally, the authors use insights from the elaboration likelihood model (ELM) to explore the effect of consumers' product category involvement on the cues' relative importance.

A conjoint analysis (N = 287) is used to study the relative importance of the seven previously mentioned attributes. A balanced orthogonal design generated eight cards that correspond to individual reviews. Respondents scored all eight cards in a random order for perceived usefulness and credibility.

Overall, argument strength is the most important cue, while summary review rating and the number of reviews are the least important for perceived review usefulness and credibility. The number of arguments is more important for people who are more highly involved with the product, while writing quality and rated review usefulness are relatively more important for the low-involvement group.

This study provides a comprehensive test of how consumers perceive online reviews, as it the first to the authors’ knowledge to simultaneously investigate a large set of cues using conjoint analysis. This method allows for the implicit valuation (utility) of the individual cues, revealing the cues' relative importance, in a setting that comes close to a real-life context. Besides, insights of the ELM are used to understand how the relative importance of cues differs depending on the level of review readers' product category involvement.

The purpose of this paper is to examine whether explicitly communicating the customer’s resource integrating role in value propositions improves or diminishes value proposition effectiveness.

Based on existing research on value propositions, three effectiveness criteria are used: role clarity, expected customer value, and purchase intention. Two experiments manipulating the presence of the customer’s resource integrating role in value propositions test the conceptual model in both an indirect interaction (Study 1, toothpaste, n=207) and a direct interaction context (Study 2, fitness program, n=228). Additionally, Study 2 includes the moderating role of resource availability.

Explicitly communicating the customer’s resource integrating role in value propositions increases customers’ role clarity, which in turn influences customer’s attitude toward the service and purchase intention through a service-related (i.e. expected benefits and expected efforts) and an ad-related (i.e. ad credibility and attitude toward the ad) route. However, these results only hold for customers high in resource availability.

This research provides initial empirical support for the often-stated claim that value propositions should include the (potential) value of the offering as well as the (resource integrating) role of the customer. Taking a broader perspective, this research provides initial empirical support for recent calls to develop marketing communication practices that facilitate value-in-use. This paper’s findings show that adopting service logic in marketing communications seems to improve value propositions’ effectiveness.

The First Amendment affords protection to political speech on the basis of its high value. However, political speakers who make inflammatory statements on both sides of an issue do not advance political projects. An entity that purchases inflammatory social media advertising, for instance, both for and against gun control, and generates offsetting reactions simply raises the level of discursive conflict. This actor may be identified as a bad faith political speaker through relatively objective criteria. One-sided content producers, by contrast, even if they utter falsehoods and inflame discourse, cannot be so easily branded. The Gertz court, and First Amendment doctrine in general, correctly views this challenge as better handled outside of the courtroom. The novelty presented here is that evidence of two-sided content production can curtail the need for discretion and potentially close the door to many errors in judgment. Classifying two-sided inflammatory speech as low value is relatively easy to administer judicially, consistent with economic efficiency, and increases the political bargaining space by reducing discursive conflict. It also has the advantage of prohibiting egregious outside interference in an election without the need to identify the geographic origin of the disruption.

This study aims to evaluate the vitality of source, receiver and message factors on credibility assessment of online hotel reviews. Further, the current study determines the effects of perceived credibility of online reviews (PCOR) on hotel booking intentions (HBI).

The current study performs reliability analysis to determine the internal consistency of the measurement scales and to ensure the uni-dimensionality of the measurement scales the present study performs exploratory factor analysis. Further, the present study performs structural equation modeling to identify the relationships between the variables.

Two-sided online reviews have a more significant positive impact on PCOR as compared to the effects of receiver, review quality, review consistency and negative-sided online reviews.

This is one of the first study that analyses the impact of source, receiver and message on PCOR. Moreover, the present study offered theoretical justification behind the factors that affect the authenticity of online hotel reviews and its effects on HBI.