In this article it states the world's wealthiest region is Asia. Now we have the rich who are reportedly renouncing their U.S. Citizenship to avoid taxes.
http://online.wsj.com/article/SB10001424127887323585604579007860126146566.html?mod=WSJ_MIDDLENexttoWhatsNewsSecond
This from THE DRUDGEREPORT:
AMERICANS RENOUNCING CITIZENSHIP AT RECORD LEVELS
...developing...