For more on the American School read the classic -- The Harmony of Interests by Carey:
In a passage from his book, The Harmony of Interests, Carey wrote concerning the difference between the American System and British System of economics:
"Two systems are before the world;... One looks to increasing the necessity of commerce; the other to increasing the power to maintain it. One looks to underworking the Hindoo, and sinking the rest of the world to his level; the other to raising the standard of man throughout the world to our level.
One looks to pauperism, ignorance, depopulation, and barbarism; the other to increasing wealth, comfort, intelligence, combination of action, and civilization. One looks towards universal war; the other towards universal peace. One is the English system; the other we may be proud to call the American system, for it is the only one ever devised the tendency of which was that of elevating while equalizing the condition of man throughout the world."