My wife did contract work at Vanderbilt University years ago....she never missed a paycheck. As soon as her contract came up they found ways to keep her working even during a hiring freeze. They of course renewed her contract. Then she changed departments and got promoted.
I found it amazing how many people and various talents were needed at a medical University. They are like a city inside a city. You wouldn't think that they employed that many people....but they do. At one time Vanderbilt University had over 20% of the available labor in Nashville. They were the largest employer in middle TN.
In poor areas of the nation Walmart is the largest employer. But today with even more remote work available than ever before it's changing.