With regard to brand extension, Herr, Farquhar and Fazio (1992) and others demonstrated that brands with high category dominance, though commanding a significant share of the parent category, find it difficult to extend very far to other categories. This is because the affect associated with a highly category-dominant brand transfers to an extension only when there is a close relation between the target category and the parent category. Highly category-dominant brands thus have more sharply delineated boundaries than less category- dominant brands