43 Pa. Stat. § 333.101
Employes are employed in some occupations in the Commonwealth of Pennsylvania for wages unreasonably low and not fairly commensurate with the value of the services rendered. Such a condition is contrary to public interest and public policy commands its regulation. Employes employed in such occupations are not as a class on a level of equality in bargaining with their employers in regard to minimum fair wage standards, and "freedom of contract" as applied to their relations with their employers is illusory. Judged by any reasonable standard, wages in such occupations are often found to bear no relation to the fair value of the services rendered. In the absence of effective minimum fair wage rates for employes, the depression of wages by some employers constitutes a serious form of unfair competition against other employers, reduces the purchasing power of the workers and threatens the stability of the economy. The evils of unreasonable and unfair wages as they affect some employes employed in the Commonwealth of Pennsylvania are such as to render imperative the exercise of the police power of the Commonwealth for the protection of industry and of the employes employed therein and of the public interest of the community at large.
43 P.S. § 333.101