Forum Moderators: martinibuster
CPA is a product extension that will appeal to publishers who are willing to invest the time and effort to make it work.
CPC and CPM are bread-and-butter, set-and-forget solutions for publishers who'd rather let Google and its advertisers do the heavy lifting.
From what I've seen in the PPA program, many advertisers are paying decent sums for certain actions. A lot more than they would pay for CPC or CPM on the content network.
Most advertisers are probably basing those payouts on a percentage of a sale, but many offer flat fees.
Either way, the PPA model will run in parallel and not replace.