Feminist epistemology aims to propose epistemic reasons for increasing the representation of women or socially subordinated people in science. This is typically done—albeit often only implicitly—by positing a causal mechanism through which the representation of sociodemographic minorities exerts a positive effect on scientific advancement. Two types of causal theories can be identified. The “epistemic diversity thesis” presents a causal path from sociodemographic diversity to scientific progress mediated by epistemic diversity. The “thesis of epistemic advantage” proposes a causal path from social subjugation to capacity for inquiry. The latter theory is defined with substantial ambiguity in the existing literature, and I present an explicit causal reformulation that disambiguates it. The epistemic diversity thesis focuses on the effect of group composition on collective epistemic performance and is largely silent about what kind of characteristics lead to individual epistemic excellence. On the other hand, the thesis of epistemic advantage seeks to identify sociodemographic background conditions that make certain epistemic agents strictly better knowers or inquirers than others and pays little attention to the synergistic effects of diverse group composition. Such a difference in the causal structure reflects the diverging political characteristics of the two theories.

In this article, we reorient the literature on colonialism and ethnic violence by exploring how different types of communalizing colonial policy (CCP) affected postcolonial patterns of ethnic warfare. We hypothesize that CCPs have limited or mixed effects when they simply recognize or empower communities but that they promote ethnic warfare when explicitly favoring some communities over others, especially when this discrimination affects the power of communities. To test these hypotheses, we combine a statistical analysis of the British Empire with a focused case study of Myanmar. We find that two relatively non-discriminatory CCPs—the use of communal census categories and high levels of indirect rule—had limited or mixed effects on postcolonial ethnic warfare. Unequal communal representation in the legislature and security forces and a mixed use of indirect rule, on the other hand, are three highly discriminatory CCPs, and we provide evidence that they increased the odds of postcolonial ethnic warfare.