Millennials and other young American adults are rapidly moving out of their parents’ homes and out of state to places like Washington, D.C., Austin and Portland — and that’s a good sign for the economy.

Why? People move out of state for jobs.

“People who move longer distances tend to move for employment-related reasons . . . they know that jobs in different parts of the country may open up in their fields, whatever their specialty is, whatever they want to do, and they’re willing to move to those jobs,” says Brookings senior fellow William Frey.