Part IV: The Rothbardian Theory of Interventionism, 1955–1956

Murray Rothbard used his general-equilibrium approach with its emphasis on economic interrelations to erect a systematic framework of interventionism. He started by elaborating further on the concept of the purely free market and developing a comprehensive welfare theory. He then proceeded to create a typology of government policy, formulate a novel theory of monopoly that distinguishes between a monopoly price and a free-market price, develop an original theory of backward tax imputation, and analyze the calculational chaos caused by government expenditure. The capstone of Rothbard’s analysis of interventionism was his integration of the Mises–Hayek theory of the business cycle into general economic theory. Rothbard was thus able to demonstrate how the boom could result only from credit expansion and not from an increase in the supply of commodity money such as gold. He also demonstrated how credit contraction during the bust promotes recovery. With these advances in the Austrian theory of the business cycle, Rothbard finally completed the monumental task of deducing the entire corpus of economic theory using the praxeological method.