Bring out the relationship between fertility and social structure as viewed by Davis and Blake. (2011)
Kingsley Davis and Judith Blake, in “Social Structure and Fertility: An Analytic Framework” (Economic Development and Cultural Change, 1956), made a deceptively simple claim with large consequences: social structure never affects fertility directly. Norms, institutions and beliefs can influence childbearing only by operating through a closed set of eleven intermediate variables — the biological and behavioural points at which reproduction can actually be altered.
The logic of the framework
Reproduction requires three sequential steps, and every social factor must act on one of them or have no effect at all.
| Stage | Intermediate variables |
|---|---|
| Intercourse | Age of entry into sexual unions; permanent celibacy; time spent after or between unions; voluntary abstinence; involuntary abstinence; coital frequency |
| Conception | Involuntary fecundity or infecundity; use or non-use of contraception; voluntary fecundity or infecundity (e.g. sterilisation) |
| Gestation | Foetal mortality from involuntary causes; foetal mortality from voluntary causes (induced abortion) |
The set is exhaustive and logically closed. Caste endogamy, the joint family, religious prescription, female education or women’s employment are therefore not causes of fertility but determinants of the intermediate variables. This converted an unmanageable list of “cultural factors” into a traceable causal chain, made cross-cultural comparison possible, and became the ancestor of John Bongaarts‘s proximate determinants model (1978), which reduced the eleven to a few measurable ones.
Tracing Indian social structure through the variables
- Age at entry into union: early marriage long sustained high fertility. Child marriage among women aged 20–24 has fallen to 23.3% (NFHS-5, 2019–21), raising effective exposure age.
- Time between unions: the upper-caste prohibition on widow remarriage, which B. R. Ambedkar identified as a mechanism of endogamy, historically removed widows from reproduction — a value working strictly through variable three.
- Contraception and voluntary infecundity: modern contraceptive prevalence reached 56.5%, with female sterilisation at 37.9% — about two-thirds of all modern method use. Patriarchal responsibility for contraception is visible here as a structural fact.
- Son preference works through stopping behaviour: couples continue until a son is born, raising fertility without any norm about family size.
- Outcome: India’s TFR is 2.0 (NFHS-5), below replacement, but ranging from Bihar’s 3.0 to 1.8 in Kerala and Tamil Nadu, and 2.1 rural against 1.6 urban.
Critique
- It is a classification, not an explanatory theory. It tells us where to look, and is silent on motivation — why couples want the number of children they want, which is what a theory of fertility must supply.
- It assumes individual choice where abortion, sterilisation and abstinence are often coerced, as India’s emergency-era sterilisation drive showed.
- Feminist demographers object that it makes women’s bodies the mediating device while leaving patriarchal power outside the model.
Conclusion
Davis and Blake did not explain fertility; they disciplined its study, by insisting that every cultural claim be cashed into a mechanism. That discipline still organises Indian fertility analysis, where the explanatory work now lies in education, autonomy and son preference rather than in the channels themselves.