Well because of the great depression many factories were just lying around not producing anything but when the us as attacked by japan almost immediately those factories were up and running to make war supplies and they needed workers so almost no unemployment in the us and everyone was making money.
Effects of segregation from the effects of a pattern of social disorgan- ization commonly associated with it and reflected in high disease and mortality rates, crime and delinquency, poor housing, disrupted family life and general substantial living conditions
Because it was the most populous and valuable colony