[oceanview]

that's easy: they have fewer years of experience in the positions they hold, and thus earn less.

and regarding the highly paid indians: they have management slots in which they are responsible for offshoring their co-workers jobs, so they get good bonuses for that (not a joke).

[radiohead]

that's easy: they have fewer years of experience in the positions they hold, and thus earn less

i figured that. but i also assume that hispanics have fewer years in the field. i could be wrong and welcome education on the numbers of US hispanic engineers compared to blacks.