Comment by cortesoft
19 hours ago
This is what I wonder… the author says that:
> The highest-yielding ad my publisher has tested so far is the search “Seth Godin The Knot“
But that doesn’t mean the ad is a good investment. It isn’t just about the yield from the ad, but about the DIFFERENCE in yield between having the ad and not having the ad.
It is really simplistic thinking to just look at conversion rates.
I'm equally confused here. Who searches "Seth Godin The Knot" and if the first result isn't that exact book, goes and buys a book about knots or weddings or something? The book should be there in plain view at the top of organic best matches. Did they really test this "yield" claim?
Sophisticated advertisers measure “incrementality”, which is exactly what you’re talking about. Alas, most advertisers are not sophisticated.