Replication Data for: Political Socialization and Immigrants' Support for Progressive Politics: The Case of Green Parties

Progressive parties often advocate pro-immigration policies but do not attract equal support from all immigrant groups. Why is this the case? This study examines immigrant behavior and their support for Green parties, a key progressive party family in Western Europe. Our findings reveal that immigrants from established democracies are more likely to support Green parties compared to those from (post-)authoritarian regimes. We attribute this disparity to socialization: Individuals from established democracies, where post-materialist values and environmental politics are more prominent, are more attuned to green issues. This heightened salience influences their political preferences after migration. Using entropy balancing on cross-national European surveys, we identify such a Green support gap and provide evidence for our proposed mechanism. These results inform debates on how political preferences travel across contexts and the socialization effects of political institutions.

进步政党通常倡导移民友好政策，却未能获得所有移民群体的同等支持，这一现象的成因何在？本研究以西欧核心进步政党阵营——绿党（Green parties）为研究对象，探讨移民行为及其对绿党的支持倾向。研究结果显示，与来自（后）威权主义政体的移民相比，来自成熟民主国家的移民更倾向于支持绿党。我们将这一支持差距归因于社会化效应：成熟民主国家中后物质主义价值观（post-materialist values）与环境政治更为凸显，来自这类国家的个体对绿色议题更为敏感。这种议题关注度的提升会在移民移居他国后影响其政治偏好。本研究通过对欧洲跨国调查数据采用熵平衡（entropy balancing）方法，验证了这一绿党支持差距，并为我们提出的作用机制提供了实证依据。本研究结果可为探讨‘政治偏好如何跨语境迁移’以及‘政治制度的社会化效应’的相关学术讨论提供有益参考。