Specially this part:
If the English ancestry group does not have the highest concentration of millionaire households, then which group does? The Russian ancestry group ranks first, the Scottish ranks second, and the Hungarian ranks third. Although the Russian ancestry group accounts for only about 1.1 percent of all households in America, it accounts for 6.4 percent of all millionaire households.
We estimate that approximately 22 of every 100 households headed by someone of Russian ancestry has a net worth of $1 million or more. This is in sharp contrast to the English ancestry group, in which only 7.71 in 100 of its members are in the millionaire league. How much wealth does this Russian American millionaire group have in total? We estimate approximately $1.1 trillion, or nearly 5 percent of all the personal wealth in America today!
How can one explain the economic productivity of Russian Americans? In general, most American millionaires are manager-owners of businesses. Russians in disproportionate numbers are manager-owners of businesses. Further, this entrepreneurial spirit seems to translate from one generation of Russians to the next.
The Hungarian ancestry group also is entrepreneurially inclined. This group accounts for only 0.5 percent of all households in this country. Yet it makes up 2 percent of the millionaire households. Contrast this with the German ancestry group, which accounts for nearly one in five households (19.5 percent) in this country. Only 17.3 percent of all millionaire households are headed by persons of German ancestry, and only about 3.3 percent of German households are in the millionaire league.
http://www.washingtonpost.com/wp-srv/style/longterm/books/chap1/millionairenextdoor.htm>