To what extent did technology railroads the free enterprise system, the rise of national markets, and population each play a role in making the united states an industrial giant

The technology rail roads had made transportation a lot more easier as it was able to provide easy access of transportation among the people, the free enterprise system is where the government laid rules of which are only few and are restricted for the contribution of those who are participating and for the sake of balance among the market in which had made a rise in the national markets because of this system and the population were a part of it as every development and achievement were because of the people involved.