Young Americans struggling to pay back student loans can’t afford to buy homes, which is fueling demand for the single-family rental market, according to Deutsche Bank.

The U.S. single-family rental market has existed for decades but has grown the most in the past two years. Deutsche Bank gives two reasons: The housing market crash changed the way households view the decision to buy a home, and the rise in student-loan debt levels has made young people unable or reluctant to commit to buying a home.

Student loan debt is the only type of household debt that steadily increased through the Great Recession. The debt has risen from $579 billion in 2008 to nearly double that level today.

Meanwhile, large institutions are taking advantage of the sitiation and buying single-family homes to rent them out.