This article examines Western European socialists' attempt to assert a 'socialist alternative' to a crumbling world order during the long 1970s. In Western Europe, the 1968 uprisings inaugurated a decade of intense social contestation, which coincided with the heyday of social democracy and, arguably, with a new leftward tendency within the socialist milieu. The 'crisis' of the long 1970s -with its multiple economic, energy social, political, international and cultural facets -challenged the foundations of the 'post-war consensus' and to some extent pushed socialists to question their commitment to capitalism. This article explores the period of consolidation and renewal that Western European social democracy experienced during the early 1970s, their increasing confidence that they could use the European Community as a tool to realise democratic socialism, the attempt to formulate a common socialist alternative for Europe, the leftward tendency that was characterizing European socialists at the time and even their hope (at least for some of them) to surpass capitalism. Focusing on the attempt of the socialist parties of the EC to adopt a common European socialist programme in view of the first direct elections of the European Parliament, it argues that despite their divergences, European socialists did thoroughly discuss and envisage an alternative to capitalism at a European and global level during the 1970s, an option that was abandoned by the 1980s.

This introduction outlines the possibilities and perspectives of an intertwining between European integration history and the history of capitalism. Although debates on capitalism have been making a comeback since the 2008 crisis, to date the concept of capitalism remains almost completely eluded by historians of European integration. This introduction thus conceptualizes 'capitalism' as a useful analytical tool that should be used by historians of European integration and proposes three major approaches for them to do so: first, by bringing the question of social conflict, integral to the concept of capitalism, into European integration history; second, by better conceptualizing the link between European governance, Europeanization, and globalization of capitalism; and thirdly by investigating the economic, political and ideological models or doctrines that underlie European cooperation, integration, policies and institutions. Finally, the introduction addresses the question of the analytical benefits of an encounter between capitalism and European integration history, focusing on the case of the 1970s. This allows to qualify the idea of a clear-cut rupture, and better highlight how the shift of these years resulted from a complex bargaining that took place in part at the European level.

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