Forum Moderators: martinibuster
The impoirtant part of that statement is "what the advertizer pays". Which may not be their maximum bid, or anywhere even close to it.
Smart Pricing and who else has ads that are in the cue at the moment make finding the kind of numbers you are asking about almost impossible.
Let's say an advertiser bids $1 for a particular keyword. On a particular site, at a particular time of day, Google's smart-pricing algo determines that a click is worth only 33 cents. In another instance, maybe it determines that it's worth 80 cents.
Google then shares that payment with the publisher. According to what people have been able to figure out from SEC filings, Google pays out about 3/4 of what the advertiser pays to the publisher, though that average is likely skewed by large sites that have negotiated a larger cut. We small fry may only be getting 60%.
So to answer your question (though the premise is a bit faulty): yes, different sites will have different EPCs for the same keyword. The range is probably pretty wide, but what matters is what you get on your site....