http://joecobb.com/2015/11/14/who-sets-the-minimum-wage/
The idea that a government should create a law telling employers, or potential employers, they are forbidden to pay anyone less than a certain floor price for labor will find itself creating an artificial surplus of labor at the lower supply-curve range. Elementary price theory, long known to be valid.
But what is “magical” about a Federal law? What is more logical about a local law? And what is most logical is letting each employer decide for his establishment what the starting or minimum (disliked) wage should be, as workers would want to increase it by more quality and effort.