In which of the following product markets are we likely to observe the largest amount of advertising?

Question

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In markets with highly differentiated products, firms have a greater ability to distinguish their products from those of their competitors, and advertising can serve as a means of highlighting these differences and influencing consumer preferences. In contrast, in perfectly competitive markets, there are many firms offering identical products, so advertising is unlikely to be effective in increasing sales. Similarly, in markets where industrial products are sold, firms typically use personal selling and other means of reaching potential buyers, rather than extensive advertising campaigns. In markets where there is very little difference between different firms' products, advertising may still take place, but it is less likely to be as extensive as in markets with highly differentiated products.

In Which of the Following Product Markets Are We Likely