Widely deployed analytics is needed to make that.
In the same way Google’s CTR factoring has forced advertisers to improve CTR, them moving to a revshare-based algorytm will force advertisers to improve conversion rates. CPC models are a temporary model that will ultimately be replaced by revshare-based search engines. No one is forced to use theirs, obuwie we all know many will, and that’s called free will.. Widely deployed analytics is needed to make that happen, and Google can’t just wait around for that - they have to push it.
Original text search at: www.threadwatch.org/node/4686