Hmmm. Good question.
(1) There is a patient in every bed that's in the hospital.
(2) There are empty beds but no staff to cover them. What the heck does that mean? Well, there has to be a certain ratio between staff and patients....sooooo, if a hospital is low on staff, they will not be able to admit more patients even though they have empty beds.
(3) This is a good one. We have lots of staff, in fact, they are falling all over each other....and we have a thousand beds....but, we have no doctors to admit. Where are the doctors? Not sure...on vacation maybe....don't feel like taking anymore patients...who knows. Isn't there anyone in charge at hospitals? You know, someone who runs the day-to-day operation of the hospital? You would think so.... Why doesn't that person hire more doctors? That would seem logical, wouldn't it? Hey, sometimes we just can't look for logic, can we?
Let's see. I own a Chevrolet dealership. I'm looking out over the lot. People are streaming in wanting to buy a car....and, there aren't enough salesmen to wait on them. People are streaming in and then leaving going to other dealerships to buy cars. And, I'm just going to sit there? Sure. You bet I'd get some salesmen in there....right away.
Obviously, the hospitals operate in a little different way.....