The Canadian-American writer John Geiger wrote about this in a recent book called The Third Man Factor. The book will soon be published in several languages, including Chinese, Korean and Japanese.
VOA: special.2010.02.24
The Chinese diaspora is one obvious factor at work here, but it is not the only one.
In addition, the conventional explanation for the high share of profits in 2006 was the downward pressure on wages arising from the growing Chinese manufacturing labour force, a factor that is unlikely to disappear soon.