A new study by the left-leaning think tank the New American Foundation finds that 40% of the over $1 trillion in U.S. student loan debt belongs to graduate students.

“Most of these degrees are not intuitively worth it,” Jason Delisle, the author of the study told Buzzfeed. “Is a Master of Arts degree really worth $20,000 more than it was in 2004?”

Delisle added, “The Obama administration says they’re addressing the problem, but it’s also one they’ve helped cause…They’re saying ‘we have a huge debt problem,’ but at the same time, they’re saying to grad students, ‘Borrow as much as you want.'” 

A few highlights from the study on the skyrocketing rates of graduate student loan debt include: 

Progressives have used the student debt issue to argue for so-called “debt forgiveness” policies that dump debt on taxpayers. Conservatives, however, point out that skyrocketing higher education costs are largely the work of administrators and a liberal professoriate who demand light teaching loads, inflated salaries, tenure, and excessive spending on luxury buildings and amenities.

Last year, a poll by global management firm Accenture found that 41% of U.S. workers who graduated from college in the last two years are underemployed and working in positions that did not even require a college diploma.