I believe i qualified my post with the term middle to upper middle class because being "rich" in america is something completely different than being "rich" in, say, Guatemala.
And believe it or not, wealth is always concentrated in the hands of a few, even in the States, meaning that even in war torn empoverished countries, there are those who hold most of the nation's wealth. true, most the "rich" ppl in asia stayed in asian, but many of those who immigrated to the US (at least those from east asia) came who were in a financial position to be classied as being at the very least middle-class once they settled in the US. As for those businesses established in lesser commercial areas, I'd say to finance a deli, it would require at minimum $100k? Like I said, they are not rich, but at least middle class.
Once again where do you get the notion that middle and upper middle class folks made up the bulk of the immigrants coming to America from Asia? What sort of resources is someone coming out of the PRC going to have say during the 1970's? Being middle class in 1970's Taiwan means having virtually nothing when arriving in America. As to $100k, actually the capital requirements are probably lower than that and also you're failing to understand a lot of the reasons why they're able to generate the money. African Americans and just about any other group if they pooled their resources could afford to buy small businesses in a lot of these communities. The fact is they don't for various reasons. A lot of asian immigrants (like many immigrant cultures from other areas) do in fact pool their money together. So it's not like one guy has $100k and is able to start up a business. It's more like several families combined have enough money to start up a business with the various families benefiting from that pool of resources in some sort of prescribed order. Also the most successful Asians are the ones who have been here the longest and in particular the Japanese, specifically the ones who either personally or were descended from those interned during WWII and lost everything during that time.