I would expect that the type of immigrants who typically enjoy lots of economic success are from middle to upper socioeconomic groups with cultural values that

I would expect that the type of immigrants who typically enjoy lots of economic success are from middle to upper socioeconomic groups with cultural values that encourage discipline, hard work and getting ahead. In many cases it appears that children that succeed are from success oriented immigrant groups that maintain cultural cohesion in the US. Cultural cohesion is difficult to maintain through the second and third generation amid the corrosive effects of US mass culture. Nobel prize winners show the same pattern.