Postwar economics expansion made neoliberalism appear outdated and marginal.

Evidence

Between the end of the 1940s and the end of the 1950s, the discipline of economics underwent major transformations: its central role in public policy and the large increase in the number of teaching and research sites helped widen the teaching cadre and diversify its cherished values. Neoliberalism now seemed largely outré. — Philip Mirowski & Dieter Plehwe (eds.), The Road from Mont Pèlerin, 291

Categorization

• corroborated: 2 independent passages support this claim — Philip Mirowski & Dieter Plehwe (eds.), The Road from Mont Pèlerin: The Making…, 291
• XREF: connects to: Neoliberal ideas were displaced by Keynesianism only briefly — Mark Blyth, Austerity: The History of a Dangerous…, 157; Working economists abandoned laissez-faire decades before the public realized it — Angus Burgin, The Great Persuasion: Reinventing Free…, 12; The late 1960s marked Friedman’s rise as Hayek’s influence faded. — Angus Burgin, The Great Persuasion: Reinventing Free…, 388 (+6 more)