What evidence is there for the argument that the progressives' successful breach into the u. s. supreme court's "liberty of contract" doctrine came at significant cost?

The argument where it states that [the progressives’ successful breach into the U.S. Supreme Court’s “liberty of contract” doctrine came at significant cost] can be witnessed during 1917, wherein during that time, thirty states had limited the working hours of female workers.

i do not know if this question has options, but a main impact of the federal reserve act of 1913, which created the federal reserve bank, was the international use of the u.s. dollar, which soon became the world's leading currency - particularly during world war i, since many nations around the world asked the united states for money.

b.provides a written record of the transaction