Why accommodate minorities asymmetrically? A theory of ideological authority insulation

Tensions between regionalist claimants and state‐wide governments remain the primary source of violent conflicts. Existing theories cannot systematically explain why and when state‐wide governments accede to such claims. Building on the partisan approaches developed so far, a theory of ideological authority insulation is constructed in this article. It is argued that the willingness of state‐wide parties to transfer authority to specific territorial entities is predominantly informed by ideological proximity to those entities. In a nutshell, the dominant conflict dimension in a country superimposes partisan rationales on the territorial dimension. A new dataset has been compiled with roughly 4,300 region‐cabinet dyads between 1945 and 2015, including electoral data, party positions and regional ‘centres of gravity’. Using panel rare‐events regressions, it is found that ideological proximity systematically explains the accommodation of minority demand controlling for alternative explanations from the partisan and ethnic conflict literature. The empirical evidence therefore supports adding ideological insulation and superimposition to the toolbox of partisan and conflict researchers. Additionally, the findings encourage the application of arguments from the conflict literature in established democracies and the testing of insights from partisan researchers in less democratic environments.