Even you?
I "admitted" (

)that market mechanisms play a role in any price determination - even in the Soviet Union. That does not mean that every price or salary subject to some market mechanism is the "free market" wage, as RRW put it.
There is no
free market when it comes to the public sector. Their decisions are not ultimately dependent on market forces, but on government policy. One policy change can now dramatically reduce the wages of those teachers - that does not mean that the "market wage" has fallen dramatically!
Yeah, and one decision, say, by Microsoft to stop supporting AMD processors or something would result in the "market price" of Windows to drop dramatically. Or one decision, say, by Macy's that it is paying too much for its electricity contracts would result in lower prices through negotiation. Or one decision, say, by Walmart that staff retention is a major problem in certain regions would result in a rise in wages in those regions. Hmm... sounds a lot like what's going on here, doesn't it? The local authorities, in response to high teacher churn rates, decided to accept higher wage demands from teachers, in order to stop them leaving.
Government policy, just like any private school policy, determines the salary of teachers. A private school in the same situation might decide that it is paying too much for teachers, and negotiate their wages downwards. They may even put up with strikes. Or they may not, and decide to settle for higher wages. The government goes through the exact same process in negotiations with its staff. Just because it's the government doing the wage negotiation doesn't mean it's not just as determined by supply and demand as anything else...
In
any industry, if you want to recruit top talent, you have to pay them well. If you pay below average wages, you will get below average employees; if your working conditions are below average, you will have to compensate your workers better to get them to stay, otherwise you get workers not good enough for other companies. The decision making process that goes on to determine wages is pretty much the same in
any company -- including those that are government run.
Even if we were talking about a private firm (which we are not, by a long shot), strong unions may distort the equilibrium wage, and hence it could be much higher than the "free market wage".
Erm, Luiz, "free market wage" doesn't mean "wage if collective bargaining doesn't exist".... Unions are players in markets, just as corporations are... Maybe you should try reading a more advanced book on economics, instead of doing the equivalent of pretending that 2+2 is all there is to know about maths
