Middle-Class Areas Shrink as Income Gap Grows, New Report Finds
New York Times
“The gap between rich and poor in college completion — one of the single most important predictors of economic success — has grown by more than 50 percent since the 1990s, said Martha J. Bailey, an economist at the University of Michigan.”

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College graduation rates: Income really matters
CNN Money
Some 54% of students from wealthy families obtained bachelor's degrees, said Martha Bailey, an assistant economics professor at the University of Michigan. But only 9% of low-income students got college diplomas…