(tco 7) early 20th-century european governments subscribed to doctrines, generally keeping their hands away from the economy.

The answer is classical liberal doctrine. Classical liberalism is a political belief system that esteems the opportunity of people — including the flexibility of religion, discourse, press, get together, and markets — and also constrained government. It created in eighteenth-century Europe and drew on the monetary works of Adam Smith and the developing idea of social advance.