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Green demarketing, which promotes anti-consumption as a more extreme sustainability tactic, could help consumers and societies move toward healthier consumption patterns while building strong, long-lasting relationships with consumers. As even the most committed brands find the need to oscillate between demarketing and conventional marketing for survival, this research tests how the congruency of the campaign shown on a brand's home page (owned media) and a following retargeting ad (paid media) could impact perceived congruency and further downstream effects. In doing so, this research proposes that the media context (i.e. news or shopping browsing context) in which the retargeting ad is embedded could determine how much congruency of the demarketing campaign across owned and paid media matters.

An experiment with a 2 (home page content: green vs. demarketing) × 2 (retargeting ad content: product vs. demarketing) × 2 (browsing context: shopping vs. news) between-subjects factorial design was employed with an online panel of 430 participants. The participants first saw the brand's home page content, then were assigned to a website browsing context where the retargeting ad of the brand was embedded.

In a news browsing context, users perceived higher congruency when product retargeting ads (vs. demarketing) were shown after a green home page exposure and when demarketing retargeting ads (vs. products) were delivered after a demarketing home page. The elevated perceived congruency successfully led to higher ad argument and ad attitude. These differences were not present in a shopping browsing context. These results showed that the congruency between the home page and the retargeting ad for demarketing campaigns mattered more in certain media contexts (i.e. news browsing context).

The study closes the empirical gap in demarketing brand activism campaigns by demonstrating when and how congruency between multiple owned and paid channels for demarketing campaigns impacts consumer responses. This study provides evidence of how the match of the demarketing campaign shown on a brand's home page and a following retargeting ad could impact perceived congruency and further downstream effects of ad argument and ad attitude while considering different browsing context effects.

Native advertising on social media continues to be a popular ad placement for marketers. With native ad-content relevance in need of further exploration regarding individual differences and social media public sentiment waning, this study set out to test the effects of ad-content relevance of native ads varying by users' pre-existing social networking site (SNS) attitude.

Two experiments were conducted with native ads relevant and irrelevant to the surrounding media content with SNS attitude as a measured moderator and perceived ad importance as the mediator.

Across Instagram and Twitter, SNS attitude moderated the effect of ad relevance on ad responses. Users that had lower SNS attitudes had significantly higher ad ratings that were relevant (vs. irrelevant) to the media content, while those that had higher SNS attitudes did not show differences. The lower SNS attitude individuals showed a greater appreciation for the relevant ads through the mediating effect of perceived importance.

Marketers need to look beyond traditional ad attitude models and craft ad content strategies that consider target audiences' SNS preferences. Layering targeting tactics on Instagram and Twitter such as “interests” and “life events” with demographic targeting could help increase the chances of ad-content relevance. SNSs should advance their ad placement tools and utilize image, speech, and text recognition algorithms to help achieve ad-content relevance for greater ad effectiveness.

This study adds to the literature by identifying SNS attitude as a qualifier of ad-content relevance effect for SNS native ads and uncovering perceived ad importance as the underlying psychological mechanism.

Social media have become an increasingly important venue for prosocial campaigns. Competing for the public’s attention in the digital space is an ongoing challenge. This study aims to test the influence of ad-context congruence, ad position and ad type (i.e. public service advertising [PSA] vs cause-related brand [CRB] advertising) on the effectiveness of prosocial native advertising on social media.

Two experiments were conducted on different social media platforms (i.e. Twitter and Instagram) with varied prosocial issues (i.e. healthy eating and environmental sustainability).

Experiment 1 indicated that the congruence between prosocial native ads and social media feeds elicited greater ad involvement and a more favorable ad attitude, regardless of ad position. Experiment 2 revealed that such an impact was contingent on whether the prosocial native ad was a public service ad or a CRB ad. The positive influence of ad-context congruence was pronounced among public service ads but was not observed among CRB ads. Perceived ad involvement mediated the interaction effects between ad-context congruence and ad type on ad attitude and behavioral intention.

The study extends ad-context congruence research to the context of prosocial native advertising on social media. Moreover, it identifies ad type as a boundary condition for the congruence effects and reveals that increased ad involvement is the mechanism underlying the positive effect of congruent PSA.

Considering the growth of the at-home smart technology industry and the increasing power of social media influencers, this study aims to examine how influencer endorsements affect individuals’ attitudes and trial intentions toward smart technology products.

An online experiment was conducted to investigate the impact of follower number and expertise domain of influencers and the trust propensity of individuals on their attitudinal and behavioral responses to influencer endorsements of smart technology products. The moderated mediation effect of perceived credibility was further examined.

The results demonstrated that individuals with lower trust propensity responded more positively to a microinfluencer with fewer followers and a specific area of expertise, which led to favorable attitudes and increased intention to try a smart technology product. However, the expertise domain was not a significant factor for the megainfluencer condition with a more extensive follower base. Interestingly, the interaction effects were not observed for individuals with higher trust propensity.

The results of this research provide practical implications for marketers who look for effective strategies for influencer marketing by demonstrating the significant impact of source-related cues, including follower number and expertise domain.

Based on the modality, agency, interactivity and navigability; source credibility; and persuasion knowledge models, this research explains how source-related cues of influencers affect credibility judgment, attitude formation and trial intentions for new technology products and how trust propensity as a personal dispositional factor varies the relationship.

This research aims to investigate the effectiveness of integrated marketing communication (IMC) messages in demarketing campaigns, particularly considering the consumer’s background in corporate social responsibility orientation (CSRO).

A 2 (publicity type: green, demarketing) × 2 (ad type: green, demarketing) between-subjects experiment assessed the impact of green marketing and demarketing strategies on consumers with varying levels of CSRO. The study utilized a mix of green and demarketing publicity and advertisements to explore their effects on the perception of the brand’s honesty. Additionally, the research investigated the mediating role of “brand as honest” in shaping purchase intention and anticipated product satisfaction.

Results revealed that for individuals with lower CSRO, the combination of green or demarketing strategies had no significant impact on the perception of the brand’s honesty. However, for those with higher CSRO, the brand was perceived as more honest when demarketing publicity was followed by a demarketing (vs green) advertisement. These effects on purchase intention (if one needed to buy a product of this type) and anticipated product satisfaction (which could help lower repeat and follow-up purchases) occurred through the mediating role of “brand as honest.”

Based on the belief congruence theory, this research contributes to the existing literature by specifically focusing on the effectiveness of IMC messages in demarketing campaigns, considering consumers’ CSRO backgrounds. The study offers original insights into the interplay between demarketing strategies, brand perception and consumer behavior.

Successful social marketing campaign to promote COVID-19 vaccination for the unvaccinated relies on increasing positive reactions but also reducing negative responses to persuasive messages. This study aims to investigate the relative effects of narrative vs non-narrative public service announcements (PSAs) promoting COVID-19 vaccination on both positive and negative reactions. Using social media as a tool for disseminating marketing campaigns provides a great opportunity to examine the effectiveness of narrative PSAs on vaccination intention, especially among unvaccinated young adults, who were the target audience of the social marketing. This study explores the role of empathy and psychological reactance as underlying mechanisms.

An experiment involving unvaccinated young adults was conducted with a one-factor, two-condition (message type: narrative vs non-narrative) design.

Results indicated that the narrative (vs non-narrative) PSAs led to greater empathy. While no direct effects of message type emerged on psychological reactance or vaccination intention, results of a serial multi-mediator model confirmed that empathy and psychological reactance mediated the effects of message type on vaccination intention.

The study extends the understanding of narrative persuasion by examining an underlying mechanism behind narrative persuasion in a COVID-19 PSA. This study provides empirical evidence of the important role of empathy in processing narrative PSAs. Moreover, the current study expands narrative persuasion’s applicability to COVID-19 vaccination intervention messages for unvaccinated young adults, highlighting the effectiveness of narrative persuasion as a social marketing communication tool.

Surprise has been recognized as a key process in humor. Past studies have seldom tested elements that could increase the surprise in humor advertising, subsequently increasing perceived humor and positive ad outcomes. The purpose of this paper was to test the effects of priming a lower arousal baseline before humor ad exposure. It proposed that this would generate greater humor ad surprise because of contrast effects, leading to greater perceived humor and positive ad effects.

Three experiments tested the effects of arousal and valence of primes on humor ads. Attention, perceived humor and ad effectiveness of the humor ads were measured.

Evidence of lower (vs higher) arousal primes leading to greater humor ad evaluations was found across three experiments. Felt arousal of the ad mediated the relationship between the prime conditions and perceived humor.

No study has focused on context effects of the unique process of humor ads. This study advanced the arousal theory of incongruity-resolution humor and further emphasized the role of surprise. The findings implicate that the surroundings of the humor ad could increase its effectiveness.

The purpose of this paper is to examine the efficacy of microbial elimination using different sanitizers in raw vegetables (cherry tomatoes, spring onions, Chinese chives, and chicory) and to analyze the efficacy of Escherichia coli O157:H7 reduction by type of sanitizer and vegetable.

To assess the sanitizing effects of microbial elimination by variety of vegetable, the samples were grouped into four different washing methods: control (no sanitizer), 100 ppm chlorine, 100 ppm electrolyzed water, and 200 ppm electrolyzed water after prewashing. Subsequently, quantitative microbiological experiments were conducted to assess aerobic mesophilic plate count (APC), coliform, E. coli, and Bacillus cereus, and sensory changes of the sanitized vegetables were tested. Thereafter, measurement of the sanitizing effects on bacterial reduction after inoculation with E. coli O157:H7 was conducted.

The microbial levels of four types of vegetables ranged from 3.37 to 5.24 log CFU/g for APC, 2.41 to 5.57 log CFU/g for E. coli, 0.25 to 5.40 log CFU/g for coliform, and 0.83 to 5.44 log CFU/g for B. cereus. After three types of sanitizing treatments, microbial reduction effects showed 0.94-1.84 log CFU/g for APC, 0.56-1.00 log CFU/g for E. coli, 0.18-1.26 log CFU/g for coliform, and 0.56-1.23 log CFU/g for B. cereus (p<0.05). In sensory evaluation, there were no significant differences in taste and flavor between with and without sanitizing treatments. Regarding bacterial reduction after inoculation with E. coli O157:H7, the microbial reduction on vegetables was shown to be in the range of 0.27-1.57 log CFU/g with 100 ppm sodium hypochlorite, 0.66-3.07 log CFU/g with 100 ppm electrolyzed water, and 0.79-2.55 log CFU/g with 200 ppm electrolyzed water. Chicory, cherry tomato, and spring onion showed significant reduction levels of E. coli O157:H7 after sanitation (p<0.05).

This study revealed that different sanitization methods are required for different types of vegetables. Electrolyzed water treatment (100 ppm) is a more effective and safe method of washing raw vegetables. Given that the main purpose of sanitizing fresh-cut produce is to maximally reduce microorganism levels, different methods of sanitizing fresh-cut produce with an adequate washing method should be used according to vegetable type.

This study aims to analyze the most effective type of emoji for deriving positive marketing results by determining whether the relationship between brand attitude, brand attachment and purchase intention is moderated by the various types of prosocial expression-based brand emojis used.

An online survey was administered to Koreans in their 20s. Starbucks brand emojis were classified into three types: static gesture, animated gesture and a combined animated gesture and displayed word. A moderated–mediation analysis was performed to verify the research hypotheses. Gender, age, region of residence, frequency of Starbucks use and Starbucks favorability were used as control variables.

Animations in emojis were shown to strengthen the marketing effect. Further, combining animated prosocial gestures and displayed words had a more positive marketing effect than merely applying animated prosocial gestures.

This study closely examined the role of verbal, in the form of colloquial words, and nonverbal aspects, in the form of emojis, in the creation of positive business outcomes. Additionally, the positive marketing effect of animated emojis is discussed from a mechanistic point of view by linking research results to those in the field of neuroscience (mirroring by mirror neurons).