In the Claritas study, three groups of people were examined:

Working-class blacks.

Affluent blacks living in predominantly white suburbs.

Affluent suburban whites.

In these charts, the numbers -- or indexes -- show how these three groups behave in relation to a national average for the particular behavior. The national average for all classes and races is 100. Therefore, an index of 500 would mean that the group was five times as likely as the average to engage in the behavior. An index of 50 would mean that the group was only half as likely as average to engage in the behavior.

Not surprisingly, subscriptions to Ebony magazine correlated highly with race. Both working-class and affluent blacks subscribe heavily to Ebony, while few whites do.

When it comes to Sports Illustrated, the differences are much less, but affluent blacks in white neighborhoods still had more in common with working class blacks than they had with their white neighbors.

There are other categories in which affluent blacks acted more like working class blacks than they did like their affluent white neighbors:

Another way in which blacks regardless of class acted similarly was in their insistence on the appearance of being upper class. They would not be caught dead in some discount stores. Affluent whites were much more willing than blacks to display a label perceived by some as not having high status:

Nonetheless, class demonstrated its influence:

Interestingly, the group most likely to play the stock market enthusiastically was the affluent blacks.