Purpose Though online impulsive buying emerged mostly in Western cultures, it has been widely expanded as a key pattern among online customers in emerging markets. Interestingly, while few studies suggest that engaging in unplanned purchase actions (i.e. impulsive buying) is not always associated with negative emotions among customers (i.e. postpurchase cognitive dissonance), others suggest that impulsive buying is directly associated with cognitive dissonance. This paper aims to investigate and understand the key antecedents of online impulsive buying among Moroccan Gen Z consumers, and how it contributes to postpurchase dissonance. The authors also try to gain deeper insights by investigating the disparities between males and females using mutigroup analysis. Design/methodology/approach Based on data collected from 333 Moroccan Gen Zers, the hypothesized model was empirically tested using a partial least squares estimation. Findings First, the results confirm that impulsive buying is positively associated with postpurchase dissonance. Second, while hedonic shopping motivation, fear of missing out and materialism were found to significantly impact online impulsive buying, price value and online reviews had no significant effect on online impulsive purchases. The importance–performance matrix also suggests that the fear of missing out is the most important factor leading to online impulsive buying, followed by hedonic shopping motivation and materialism. Finally, the results confirm that female shoppers are more likely to engage in impulsive buying behavior, and this was mainly due to higher fear of missing out, hedonic shopping motivation and materialism. Practical implications First, the study findings can help online merchants to construct well-designed online shopping platforms and effective e-marketing tactics to stimulate purchase intentions among Gen Z shoppers. Online merchants should also attempt to reduce the negative feelings associated with unplanned buying behavior by introducing additional incentives, effective consumer interactivity and flexible return policies. This would help online suppliers in retaining customers and transforming impulse purchases into more recurrent ones. Second, online retailers should take into consideration the differences between male and female consumers by appealing to the role of gender in purchase situations when marketing their products and services. Finally, the findings offer interesting implications to society by allowing online shoppers to make well-informed purchase decisions without being influenced by personal and products’ traits. Originality/value While prior research assessed the investigated constructs in separate models, the study suggests an integrated framework that incorporates different determinants of online impulsive shopping as well as its impact on postpurchase cognitive dissonance. Additionally, the authors explored the moderating effect of gender to gain deeper insights with regard to the disparities between males and females while engaging in online impulsive buying. To the best of the authors’ knowledge, this study is the first of its kind to investigate the antecedents of online impulsive buying among Gen Z consumers in Arab countries and Africa.
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