Religion and income

Audaciuous Epigone has an interesting post on the connection between a person's religious denomination and their income:

Even with the second highest IQ scores of the 19 groups measured, Jewish incomes far surpass what intelligence alone predicts. This suggests the story behind Jewish success is more than the history of Ashkenazi intelligence alone.

In my opinion, this is likely due, in part, to ethnocentrism amongst Jews i.e. wealthier Jews help poorer Jews to become wealthier.