Durkheim's study of suicide patterns demonstrated that suicide, seemingly the most individual act, varies systematically by social factors (religious affiliation, marital status, economic conditions). Suicide rates are stable across time and geography, proving that suicide is a social phenomenon explained by social integration and moral regulation rather than individual psychology alone. This work established the foundational principle that social facts have social causes and cannot be explained by individual characteristics alone.
Review Durkheim's actual data on suicide rates across Protestant vs. Catholic regions and among married vs. unmarried individuals. Ask what patterns emerge and what might explain them.
From your study of Durkheim's social facts, you know his central claim: social facts are things external to individuals — patterns of behavior, norms, institutions — that exercise constraint on individuals and must be explained by other social facts, not by individual psychology. But Durkheim needed to *prove* this claim against skeptics who would insist that all social phenomena are ultimately reducible to individual minds. His 1897 study of suicide (*Le Suicide*) was designed as that proof, chosen precisely because suicide seems like the most private, individual, psychologically-driven act imaginable. If social facts are real and causally powerful, their signature should be detectable even here.
The empirical strategy was elegant: rather than studying individual suicides, Durkheim studied suicide rates — the number of suicides per 100,000 population in a given group over a given period. Suicide rates are remarkably stable from year to year in the same society, yet vary systematically across groups. Protestants have higher suicide rates than Catholics; unmarried people higher than married; soldiers higher than civilians during peacetime. If suicide were purely psychological, these stable rate differentials would require us to believe that Protestants are systematically more prone to depression than Catholics — an implausible claim. The more parsimonious explanation is social: different groups differ in their levels of social integration (the degree to which individuals feel bound to and embedded in a social group) and moral regulation (the degree to which collective norms constrain individual desires).
This framework generated Durkheim's famous typology of suicide types. Egoistic suicide results from insufficient integration — the individual is insufficiently attached to the group and falls back on the self alone, unable to find meaning in social bonds. This explains the Protestant-Catholic differential: Protestantism emphasizes individual conscience and scripture, Catholicism emphasizes collective ritual, hierarchy, and community. Altruistic suicide is the inverse — too much integration, where the individual's identity is so submerged in the group that self-sacrifice for the group feels obligatory (the soldier who dies for his unit). Anomic suicide results from insufficient regulation — when social norms break down or fail to constrain desires (during economic crises, divorce), individuals find themselves adrift without the guidance that gives life direction and limit. A fourth type, fatalistic suicide, occurs under excessive regulation (slavery), though Durkheim gave it only a footnote.
What makes *Suicide* methodologically significant — and why it builds directly on the social facts framework — is that Durkheim used the comparative method to eliminate rival hypotheses. He systematically ruled out climate, race, heredity, and imitation as explanations for suicide rate differentials before presenting social integration and regulation as the residual, social explanation. This is the logic of causal inference by elimination: show that the correlation holds across many different populations, rule out common confounders, and argue that the residual pattern requires a social-level explanation. Subsequent critics (Jack Douglas, among others) have challenged both Durkheim's data quality (coroners' classifications of suicide are socially influenced) and his theoretical framework (the typology is post-hoc). But the methodological demonstration — that aggregate social rates can reveal causal patterns invisible at the individual level — remains foundational to quantitative sociology and social epidemiology.
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