The Evolution of EU Membership Norms
This chapter traces the emergence, contestation, and evolution of membership norms within the European Union and its institutional precursors from the 1950s to the present. The genealogy demonstrates that these norms have changed significantly over time, contrary to the assumptions of many scholars and the claims of many EU pronouncements in recent decades. EU norms limited membership to non-Communist states (1957–1961), parliamentary democracies (1962–1969), and liberal democracies (1970–2005), but consensus then broke down and has not been re-established. The chapter thus establishes an empirical basis for investigating in later chapters how prevailing membership norms have shaped the community’s decision-making on the eligibility of particular aspirant and candidate states.