Most of Christina's research investigates how societal diversity affects democratic government, a question which she addresses by studying political representation and party competition, federalism and regionalism, and the politics and policies of migration and integration, mostly in the context of Europe.
Her monograph Ideational Legacies and the Politics of Migration in European Minority Regions (OUP, 2022) contributes a novel theory of ideational policy stabilisation to the debate about the causal power of ideas in comparative public policy, and traces how legacies of industrialisation continue to impact the politics of migration in Catalonia and South Tyrol.
