This article investigates factors of marketing communications and consumer characteristics that induce reminder impulse buying behaviour. Study 1 applies the antecedent, process and consequence approach to investigate the essential differences between reminder impulse buying and pure impulse buying. The results of Study 1 reveal that reminder impulse buying significantly differs from pure impulse buying on motivation, buying goal and decision evaluation. Study 2 further examines how sales promotion strategy might affect reminder impulse buying, with product appeal and consumer traits as moderating factors. Both sales promotion strategy and its interaction effects with product appeal are found to have significant influences on reminder impulse buying. Specifically, an instant‐reward promotion promotes stronger reminder impulse buying than a delayed‐reward promotion. Furthermore, both a utilitarian product appeal with a price discount promotion and a hedonic product appeal with a premium promotion can encourage greater reminder impulse buying.

Utilizing the case-based reminding theory in analogical reasoning, this research proposes that the evaluation of a brand extension can be improved by reminding consumers of a similar brand in the extension category. This effect is derived from a brand-to-brand similarity, in addition to the product-to-product and brand-to-product similarity identified in prior literature. Experiment 1 explores the idea that the effect of similar case reminders is most pronounced in moderately similar extensions than in highly similar or highly dissimilar extensions due to schema congruity. Experiments 2 and 3 distinguish the levels of similarity (i.e., product-to-product, brandto-product, and brand-to-brand similarity) as a source of consumers' evaluations on a brand extension and further eliminate an alternative explanation of instantaneous learning in the advertisement setup of Experiment 1.