This all boils down to one things: in a knowledge economy, women can earn more than they can in a brute-force-and-muscle economy. There are two bell curves: in

This all boils down to one things: in a knowledge economy, women can earn more than they can in a brute-force-and-muscle economy. There are two bell curves: income of men, and income of women. At one point, the men's income bellcurve was way to the right of the women's: it was a rare woman who earned more than ANY man. Thus, marriages of lower earning men to higher earning women were very rare. Now, the women's bellcurve has moved to the right, so that it 85% overlaps men's. There are a lot more possible pairings of men and women where the woman earns more. This NYT article isn't really news - it's the inevitable outcome of the industrial and information revolutions.