Nowadays, people tend to show off in a more conservative rather than ostentatious way, that is, “low‐key style.” This paper focuses on consumers' low‐key conspicuous behavior on social media after they purchase fashion luxury goods, so as to explore the antecedents of this behavior, as well as its impact, on consumer happiness. Our results show that motivations for self‐representation and avoidance of negative comments from others trigger the low‐key conspicuous behavior. Afterward, this behavior will positively affect consumers' short‐term happiness through both perceived self‐image and perceived interpersonal relationship, while enhancing long‐term happiness only through perceived interpersonal relationship. The reason may be that the temporary pleasure brought by the improvement of perceived self‐image is not enough to raise the quality of life, but an improvement in one's interpersonal relationship is a lifelong benefit.

This study investigates how the endorsements of Internet celebrities (ICs) may drive consumer trust in their marketing campaigns, and subsequently affect impulse buying in relation to luxury fashion brands. Drawing on the framework of persuasion with a particular emphasis on the role of receivers, this study identifies five main characteristics, namely, the popularity of ICs, identification, IC adoration, social distance, and the perceived fit that may contribute to promoting impulse buying. A survey was conducted with 585 followers of IC in China. The findings reveal that trust is an essential factor that affects impulse buying. Identification and perceived fit both significantly contribute to increasing impulse buying through trust. Alternatively, large social distance may impair the relationship between trust and impulse buying. We conclude with implications for marketers that luxury fashion brands should seek cooperation not only with the most popular, but also with the most relevant ICs. An IC with a humble and relatable image can earn consumers’ trust and lead to an enhanced endorsement effect.

Though artificial intelligence (AI) recommendation is a hot topic in recent marketing research, previous research has shown a convergent tendency for aversion to AI recommendation. It is imperative to find ways to promote AI usage and reduce consumers’ AI aversion. This study fills this void by exploring the effect of AI (vs. human) recommenders on consumers’ preferences for search versus experience products in the context of e‐commerce. Two studies provide convergent evidence that consumers show less avoidance of algorithms when recommending search products compared to experience products. A behavioral experiment (Study 1, N = 112) validates that consumers are less likely to purchase experience products recommended by AI, while there are no significant differences between AI versus human recommenders when recommending search products. Using event‐related potential (ERP), a further consumer neuroscience study (Study 2, N = 26) shows that consumers have a higher level of cognitive conflict (i.e., a larger magnitude of N2) when AI (vs. human) recommends experience products, while the effect disappears for search products. This paper shows that for search products, marketers can obtain similar evaluations using AI recommenders, which is relatively cheaper and more time‐saving compared with human recommenders. Therefore, our work provides important implications for theory and practice on e‐commerce and marketing communication.

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