Editing Civil war (section)

=== Grievance ===
Most proxies for "grievance"—the theory that civil wars begin because of issues of identity, rather than economics—were statistically insignificant, including economic equality, political rights, ethnic polarization and religious fractionalization. Only ethnic dominance, the case where the largest ethnic group comprises a majority of the population, increased the risk of civil war. A country characterized by ethnic dominance has nearly twice the chance of a civil war. However, the combined effects of ethnic and religious fractionalization, i.e. the greater chance that any two randomly chosen people will be from separate ethnic or religious groups, the less chance of a civil war, were also significant and positive, as long as the country avoided ethnic dominance. The study interpreted this as stating that minority groups are more likely to rebel if they feel that they are being dominated, but that rebellions are more likely to occur the more homogeneous the population and thus more cohesive the rebels. These two factors may thus be seen as mitigating each other in many cases.<ref name="cs18">Collier & Sambanis, Vol 1, p. 18</ref>