Many college students are not earning enough to pay back their student loans, because they choose majors that pay too little upon graduation, and 15 percent of college grads are still paying back student loans at age 50, Peter Morici, University of Maryland Economics Professor, said Thursday.

College graduates owe on average $25,000 when they finish school, Morici said, and in some cases, graduates can rack up debt close to six figures.

Read more: CNS News