Ambiguities of neoclassical economics and general equilibrium models were precisely one of the reasons neoliberal economists expressed reservations about the neoclassical and positivist mainstream in the mid-20th century. Friedman was a neoliberal who rejected Walrasian general equilibrium; Hayek gingerly distanced himself from neoclassical price theory, with the consequence that the very meaning of markets was eventually transformed to wrong-foot the market socialists.

Philip Mirowski & Dieter Plehwe (eds.), The Road from Mont Pèlerin, loc. 12