P. Ormorod:

....advertising is necessary to fill gaps in the knowledge of consumers, without which the demand curve wouldn't operate...

there's an ad I often come across at work. its ussually done as a one page A4 size advert with the page being divided in 2 halves horizontally. the top part of the page has a white plate with two sausages in it. the bottom part has two sausages in the plate and a teaspoonful of mustard next to it. a writing underneath says: "the right partner increases your value"

i feel