The most useful contemporary cases are not single policies. They are societies and subcultures in which marriage, children, obligation, worship, education, housing, and mutual aid reinforce one another. Their fertility cannot be copied by extracting one benefit from the package.
Drafting notes (not yet prose)
This section is not the chapter’s comfort object and not a recommendation. It is evidence that packages far from the low-fertility mainstream can produce large, durable fertility effects. Place it after the old answers: societies have already reached for extreme tools, and some living groups still run a totalizing ecology.
Israel
- National TFR near 3 is not one number. Disaggregate by religiosity and ethnicity.
- Working figures to verify at draft time (see
ref.md): Haredi on the order of 6–6.5; religious (dati) near 4; traditional higher than replacement; secular Jewish near 2.0, still high for the OECD; Arab/Muslim rates have fallen toward or below 3. - Family policy exists. The high-fertility engine is still a way of life: early marriage, meaning, mutual aid, children as collective continuity.
- Interaction of security, national history, religious tradition, social expectation, and confidence in collective continuity.
- Distinguish support that reduces the cost of children from culture that makes children central to adult life.
- Ask which features depend on Israel’s unusual history and which could travel.
- Note recent reports of some decline in Haredi TFR from very high levels; do not freeze a vintage.
High-fertility religious subcultures
- Cases with durable fertility across more than one generation:
- Haredi Jews (Israel and diaspora).
- Amish: TFR just over 6 in recent ACS/registry work (Stone, Demographic Research 2025); very low non-marital fertility; high retention in many settlements, variable by affiliation.
- Some Latter-day Saint populations: still above the U.S. mean, but the LDS fertility advantage has narrowed sharply; Utah TFR is no longer an outlier on the old scale.
- Some traditional Catholic and other high-practice Christian pockets: use only if the data are clean; do not treat “Catholic” as high-fertility.
- Compare theologies, marriage timing, education, women’s work, geographic concentration, matchmaking, and degrees of separation from the wider culture.
- Dense institutions: schools, congregations, matchmaking, mutual aid, family businesses, multigenerational proximity, ritual, and status inside the group.
- Test the claim that religious minorities in high-cost cities without pronatalist economic benefits still have large families.
What the exceptions demonstrate
- Fertility is embedded in an ecology rather than produced by a payment.
- Shared meaning can change which sacrifices appear reasonable.
- Community support and community pressure can be difficult to separate.
- Selection, retention, exit, conversion.
- A high-fertility equilibrium may require institutions that shape desire long before a couple decides about another child.
- Features that work inside a voluntary community may become coercive when imposed by a state. That distinction is used later in the catalog and in permission.