Brand Congruity and Comparative Advertising: When and Why Comparative Advertisements Lead to Greater Elaboration

Abstract

Two experiments are conducted to examine when and why comparative advertisements lead to elaboration. Comparative advertisements in which the sponsor brand and the comparison brand are perceived to be dissimilar lead to greater elaboration, as evidenced by differences in argument quality, than comparative advertisements in which the sponsor and comparison brands are perceived to be similar. This pattern is particularly strong for those individuals not chronically predisposed to elaborate (low need for cognition), whereas those individuals chronically predisposed to elaborate (high need for cognition) elaborate the ads regardless of comparison composition. Results are consistent with our proposed brand congruity explanation.