It would likely be "skilled workers" who would have been most likely to criticize the Knights of Labor, since many skilled laborers and factory owners saw this Union as allowing for unfair bargaining power on behalf of the workers.
They agreed to change the Articles of Confederation to grant congress the power to 1) regulate commerce and 2) tax the people.
It has a very limited supply of<span> natural resources which could affect its economic growth</span>
I think the answer is Europe
Pax romana ........................