Taydas, ZeynepKentmen-Cin, Cigdem2023-06-162023-06-1620171065-91291938-274Xhttps://doi.org/10.1177/1065912917706548https://hdl.handle.net/20.500.14365/2211Despite considerable research analyzing European Union (EU) citizens' attitudes toward enlargement, there is no scholarly consensus on what drives opposition to the accession of a particular country. To fill this gap, this paper adopts a comparative approach to examine the determinants of attitudes toward the membership of twelve candidate or potential candidate countries to the EU. Using 2005 Eurobarometer survey data from the EU-25, we examine the relative explanatory power of two leading theoriesutilitarian and identityin explaining public opposition to EU enlargement. Our results reveal that, across models, subjective variables capturing material and identity threat perceptions have a more consistent impact on enlargement attitudes compared with objective indicators. While fears of higher EU budget contribution and evaluations of national economic conditions are the most consistent utilitarian predictors of respondents' opposition to entry of potential EU members, attachment to European identity and fears about the loss of cultural identity are the two most powerful identity-related predictors of public opposition. Contrary to expectations, religious attachment plays a limited role in shaping public opposition. Only Turkey elicits strong and uniform opposition from all religious groups, including atheists, agnostics, and seculars.eninfo:eu-repo/semantics/closedAccessEuropean integrationpublic opinionenlargementAnti-Immigrant AttitudesSocial Identity TheoryEuropean-UnionPublic SupportTurkish MembershipGroup PositionIntegrationOpinionThreatIdentificationArticle10.1177/10659129177065482-s2.0-85026306686