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The impact of advertising on prices has long been a matter of dispute. It has been argued that the persuasive aspects and the product differentiation effects of advertising tend to raise the prices of products to consumers. On the other hand, by providing consumers with information about products and alternatives in the market, allowing them to economize on search and to locate low-priced sellers more readily, advertising may tend to lower prices to consumers.
Lee Benham (Sun,) studied this question.