There is life after high school—and the most diligent students are giving their futures a boost. Research suggests that good GPAs are predictors of higher incomes later in life, whereas low grades are tied to smaller incomes. University of Miami researchers analyzed the high school records, demographics, and incomes of more than 10,000 men and women 10 years after graduation. For every one-point increase in GPA, earnings in adulthood went up by 12% for men and 14% for women, they report online this week in the Eastern Economic Journal.
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