Ideology matters: Why decentralisation has a differentiated effect on regionalist parties' fortunes in Western democracies

摘要: This article addresses the effects of decentralisation reforms on regionalist parties' electoral strength. It takes up debate between �accommodatists� (i.e., loss due to policy accommodation) and �institutionalists� gain institutional empowerment). These depend venue considered � regional or national ideological radicalism a given party secessionist autonomist. study finds that increases in level are positively associated with higher scores for autonomist parties elections, while they not statistically significantly correlated performances. In contrast, seem penalise more than ones. findings based analysis novel dataset which includes vote shares 77 11 Western democracies from 1950 until 2010.