Products sold under a brand name used to command premium prices because, in general, they were superior to non-brand rival products. Technical expertise in product development has become so widespread, however, that special quality advantages are very hard to obtain these days and even harder to maintain. As a consequence, brand-name products generally neither offer higher quality nor sell at higher prices' Paradoxically, brand 'names area bigger marketing advantage than ever.
Which of the following, if true, most helps to resolve the paradox outlined above?