Replication Data for: How Party Competition Shapes Ethnic Parties’ Positions on Migration and Immigration

What positions do ethnic parties adopt on issues related to migration and immigration? We argue that, first, the specific characteristics of the party system – that is, if there are further ethnic parties that compete for votes, in particular among the same ethnic group – matter for the policy profile of ethnic parties on immigration policy. Secondly, we expect that the ideological position of an ethnic party should matter for their immigration policy position: ethnic parties with a more right-wing ideological profile should adopt more negative positions on immigration, in particular if they face competition from another ethnic party. We use regression analysis and a manually coded sample of ethnic parties based on the Comparative Manifesto Project to test these assumptions. The empirical analysis provides support for our expectations: ethnic parties take more negative immigration positions if they compete with other parties among the same group of ethnic voters and the more the ethnic parties belong to the right-wing of the ideological spectrum.族群政党（ethnic parties）在移民与迁移相关议题上秉持何种政策立场？本研究提出两项核心论点：其一，政党体系的具体特征——即是否存在其他族群政党参与选票竞争，尤其是在同一族群选民群体内展开角逐——会对族群政党的移民政策立场倾向产生显著影响。其二，族群政党的意识形态立场同样会左右其移民政策取向：意识形态偏右翼的族群政党，在移民议题上往往会采取更为消极否定的立场，尤其是当其面临其他族群政党的竞争时。本研究采用回归分析方法，以及基于《政党宣言比较项目（Comparative Manifesto Project）》构建的人工编码族群政党样本，对上述假设进行实证检验。实证分析结果印证了我们的预期：当族群政党在同一族群选民群体中与其他政党竞争时，其移民立场会更为消极否定；且族群政党的意识形态越偏向右翼光谱，其移民立场的否定性越强。