Ethnicity, political survival, and the exchange of nationalist foreign policy

How does leadership's desire for political survival in ethnically heterogeneous democracies affect the probability of states exchanging nationalist foreign policy? I define nationalist foreign policy as foreign policy that aims to fulfill national self-governance using a civic or ethnic frame. I argue that civic-nationalist policy disputing the territoriality of one's own state is more likely, while ethno-nationalist policy favoring the leadership's foreign co-ethnics is less likely, when the size of the leadership's ethnic group is small and the level of democracy is relatively high. This is because the leadership, under such domestic conditions, has to mobilize support from other ethnic groups in order to stay in power. Civic-nationalist policy allows the leadership to increase domestic solidarity across ethnic lines and mobilize support from other ethnic groups, whereas ethno-nationalist policy would risk other ethnic groups criticizing the leadership of being ethno-centrist. These hypotheses are supported by quantitative analysis using an original dataset.