Right, economists describe this as a signaling mechanism. Most regular office jobs don't require skills beyond the high school level. But a college degree signa

Right, economists describe this as a signaling mechanism. Most regular office jobs don't require skills beyond the high school level. But a college degree signals to employers that the candidate has some discipline and ability to complete tasks. That allows employers to cut down the candidate pool to a manageable size and somewhat reduce the risk of a bad hire. When labor demand is high, employers are quick to eliminate college degree requirements in order to fill critical roles.