The initial question was if US traffic pays more than international traffic when it comes to Adsense. Then at some point the discussion started to focus on questions like which econonomy is best and do like Europeans certain attitudes of the Americans etc. I think all traffic is important and pays. Traffic are people. People interact with other people. If a Chinese person has find their way to the internet and speaks English, they are likely to try and connect with other English speaking people. There are dozens of ways to do so online. Maybe that particular Chinese person doesn't have a credit card and wouldn't buy anything online. But he or she might know somebody with a credit card and spread the word about site where there are ads to be clicked. Besides, I think we are wrong in assuming that Chinese people don't have credit cards and don't buy stuff online. The same holds true for India and other Asian countries.