At base, a “fair” wage is one that will attract people to do what you need them to do.
It isn’t $20, $30, $40, or $1, $3, or $10 an hour. It is the wage at which people think they are better off taking than not. There is no non-artificial minimum wage, and no absolute limit to the size of the wage either. The way wages should be set is through market mechanisms.
