La duración en el poder y el rendimiento electoral de los partidos nacionalistas gobernantes. ¿La ventaja competitiva del nacionalismo?

Electoral support for ethno-nationalist parties is based on the mobilisation of ethnic and cultural identities, which are generally understood to be primordial and, therefore, deeply rooted and highly stable. This paper poses the following question: to what extent do ethnic or national identities provide nationalist parties with a competitive advantage with regard to other parties, based on other types of allegiance, such as class or religión? In order to answer this question, the paper compares the incumbent nationalist and non-nationalist parties of the regional governments of Canada, Denmark, Spain, Italy and the United Kingdom in the last five decades with respect to three empirical indicators: electoral performance, fluctuation of voting levéis and how long governing parties stay in office. The results suggest that incumbent nationalist parties are, in general, less severely punished by voters atelection time than non-nationalist parties, especially in coalition governments. However, this apparent advantage does not provide nationalist parties with longer periods in office.