Swatantrata ki raksha ke liye bani thi sound money ki theory – yeh hai Ludwig von Mises ki "The Theory of Money and Credit" ka mool vichar. 1912 ki yeh kitab aaj bhi economic theory ki sabse prabhavit aur controversial treatise hai. Von Mises ke monetary theory ke deep dive ne aaj tak ke economic thought ko nayi disha di. Abhi suniye aur janiye kaise yeh theories aaj ke financial problems ke solutions ko shape kar rahi hain.