It is more likely a regulatory failure, I believe. The market will do what the market does, raise prices for nurses until there are more. If nurses are in high

It is more likely a regulatory failure, I believe. The market will do what the market does, raise prices for nurses until there are more. If nurses are in high demand, yet wages aren't rising, then there is either collusion among the employers, or some regulatory disfunction (too much, too little, the wrong kind, etc.) preventing it.