Brand extension can provide advantages such as reducing customer risk perception of new products, increasing promotional efficiency, and clarifying the parent brand image. However, disadvantages include potential customer confusion, retailer resistance, and risk of hurting the parent brand. For favorable customer evaluations of extensions, customers must have positive associations with the parent brand that transfer to the extension without creating negative associations. Creating strong brand extension equity depends on salient and favorable parent brand associations in customer minds. Contributing to parent brand equity requires compelling evidence linking relevant extension attributes to the parent brand.