I have seen so many post here US/UK/CA Traffic get more than other contries.Why google pay high those contries
Probably what wwwSENSERELYcom said is right but i cant be sure, hell no one can tell. But the stronger the advertisers competition the more you´ll earn. And the us/ca niche is very competitive
Because some of the companies are maybe more wealthy and established and the conversions are probably better, keeping the advertisers willing to keep paying high amounts. If a UK citizen/visitor clicks an ad on your site, goes to the advertisers site and takes out a loan,mortgage,credit card with the UK company, it makes sense. If a citizen from eastern europe or asia clicks an ad, doesn't or cant apply for the services from the UK company then thats wasted money for the advertiser. If you were in japan and clicked a japanese ad for a financial service it would be worth it to the advertiser if theres more chance of you actually signing up.