Cold War historiography has long assumed an interruption of most pan-European, West–East economic relations between 1945 and 1989, before the circulation paradigm imposed the idea of a porosity of the ‘iron curtain’. This article offers a double displacement in the analysis of pan-European economic connections during the Cold War. It first highlights the legacy, up to the late 1950s, of pan-European economic debates about socialist economics that have been developed in the interwar period within the communist parties’ network in Europe. Second, it shows how these networks created opportunities in the people’s democracies for challenging the implementation of the Soviet economic model. A clear Cold War divide in the field of economic ideas was delayed, at least until the beginning of the 1960s. A pan-European discussion about the limits of the equation between central planning and socialist economics, developed in capitalist interwar Germany, lived on.