[e-dt]

Yes, but not in general shortages of doctors. It's a totally different problem, so this isn't really a helpful way to look at it. After all, if there's a shortage of cabbages, it doesn't mean the remaining cabbages benefit and can lobby to keep it that way!

[bryanlarsen]

Cabbage farmers can, though.

[e-dt]

Yes, but when that sort of thing happens in commodities it's an illegal cartel, whereas when it happens with jobs it's responsible self-regulation by a professional association.