Ethnicity and civil war

If a civil war begins, it is more likely to be initiated by an ethnic group than any other type of group. We argue that ethnic groups, on average, are likely to have more grievances against the state, are likely to have an easier time organizing support and mobilizing a movement, and are more likely to face difficult-to-resolve bargaining problems. We further argue that each of these factors was likely due to three pre-existing patterns associated with ethnicity. First, when political power is divided along ethnic lines, ruling elites can disproportionately favor their own ethnic group at the expense of others. This creates grievances that fall along ethnic lines. Second, ethnic groups tend to live together in concentrated spaces, sharing the same language and customs, and enjoying deep ties with ethnic kin. This means that ethnic groups, if they are aggrieved, will have an easier time mobilizing support to demand change. Third, the fact that ethnic identity tends to be less elastic than other types of identity means that credible commitments to any bargain – before and during a conflict— will be more difficult to make. The result is that ethnic groups will have a greater number of reasons, opportunities, and incentives to mobilize and fight than non-ethnic groups.