Why Is Everyone Having Fewer Children? - Lyman Stone - #834

Episode Summary

Executive Summary: The discussion argues that America’s fertility decline is less about wealth and more about shifting norms, later marriage, mental health, and rising parenting expectations. Historically, humans aimed for surviving children, but in modern low-mortality societies birth rates keep falling even when desires for children remain relatively stable. The guest sees the crisis as real but not apocalyptic, emphasizing pronatal policies, housing, and hopefulness over doom.

Main Topics: America’s fertility decline and historical context (Priority: 5/5): The conversation contrasts today’s low fertility with much higher historical birth rates, while noting that survival-adjusted fertility was often much lower than raw births suggest. Surviving fertility vs. raw fertility (Priority: 5/5): A key theme is that past families had many births because child and maternal mortality were high; humans were often targeting a desired number of surviving children rather than births. Wealth, culture, and fertility (Priority: 5/5): The guest argues fertility is not primarily driven by rising income; instead, cultural norms, expectations, and family models play the bigger role in modern fertility decline. Parenting norms and rising expectations (Priority: 5/5): Modern parents face a much more intensive, high-investment model of childrearing, which raises the perceived cost of children and discourages larger families. Marriage, mating markets, and male income (Priority: 4/5): The decline in fertility is tied strongly to later marriage and fewer marriages, especially because men in their 20s have become less economically marriageable. Mental health, pessimism, and pronatal policy (Priority: 5/5): The guest argues depression, anxiety, and doom-oriented fertility discourse suppress childbearing, and that promoting optimism and support for families is more effective than crisis rhetoric. Policy, UBI, and housing (Priority: 4/5): The transcript reviews evidence that unconditional cash transfers like UBI do little long term, while conditional family supports can help; housing affordability is highlighted as a future research and policy focus.

Key Arguments: Modern fertility decline is not mainly caused by rising income; when people become richer without major cultural shifts, fertility often rises rather than falls. Humans historically targeted surviving fertility, not raw birth counts; high birth numbers often masked high mortality among mothers and children. In industrialized countries, fertility continued falling even when child survival became nearly universal, so child mortality no longer explains the trend. Parenting became much more intensive and culturally loaded after the late 20th century, increasing the perceived burden of raising children. Much of the fertility decline is explained by delayed marriage and fewer marriages, not by a major drop in the desire for children. The ideal number of children in the U.S. remains around 2.3, but actual fertility is about 1.6, showing a large gap between wants and outcomes. People who are depressed or anxious are less likely to want children and less likely to have them; doom narratives may worsen this. UBI and simple cash transfers do not reliably improve long-run poverty, health, or fertility outcomes; targeted supports work better. Pronatal policy should focus on helping people achieve desired family size rather than using birth rates instrumentally for GDP or politics.

Data Points: U.S. total fertility rate in 2007: 2.1 children per woman - Referenced as the approximate replacement-level fertility in the U.S. a few years earlier U.S. total fertility rate today: ~1.6 children per woman - Current U.S. fertility level discussed as a major decline U.S. fertility in 1800: ~6 children per woman - Historical raw fertility estimate for the U.S. in the 1800s Massachusetts/Connecticut fertility in 1800: ~4 children per woman - Lower-fertility exceptions in early U.S. history Ideal number of children in U.S. surveys: 2.3 - Average ideal family size reported in surveys Intended number of children in U.S. surveys: 1.85 to 2.1 - How many children people say they realistically intend to have Gap between actual fertility and intentions: ~0.2 to 0.5 children - Difference between intended and realized fertility Gap between actual fertility and ideals: ~0.7 children - Shortfall between actual U.S. fertility and stated ideals Share of U.S. under-50 adults saying they do not want children: ~20% to 25% - Described as a notable but not majority preference Reported increase in under-50 adults not wanting children (Pew): 37% to 47% - Cited as a 10-point increase between 2018 and 2023 Baby boomer fertility in the U.S.: just over 3 per woman, possibly near 4 at one point - Used to illustrate a period of higher fertility during the mid-20th century Breastfeeding prevalence in the 1940s-50s: ~25% of American mothers - Example of outsourced mid-century parenting norms Republican federal elected officials' fertility rate: ~2.6 children - Political comparison showing higher fertility on the conservative side Democratic federal elected officials' fertility rate: ~1.4 children - Political comparison showing lower fertility on the liberal side UBI pilot earnings response: ~25 cents less earnings per $1 transferred - Findings from a cash-transfer pilot summarized in the discussion UBI pilot spending response: ~30 to 45 cents more spending per $1 transferred - Recipients spent more across categories including gifts and luxuries UBI pilot net worth effect: ~6 cents lower net worth per $1 transferred - Unexpectedly negative savings/wealth outcome in the pilot Homelessness UBI study follow-up: No difference after 3 years - Cash transfer did not reduce homelessness relative to control Fertility decline from unintended births: ~40% decline - Unintended births fell more sharply than intended births Fertility decline from intended births: <20% decline - Intended births fell, but less dramatically than unintended births Fertility in married people: declined much less than among unmarried people - Supports the claim that marriage is central to fertility trends

Pivotal Quotes: "People are implicitly targeting surviving fertility." — Lyman Stone: Explaining why historical families had many births but also many deaths "If you actually want people to have kids, shut up about a crisis." — Lyman Stone: Arguing that doom rhetoric can backfire by discouraging prospective parents "You are less fragile than you think you are. Children are not going to break you." — Lyman Stone: Encouraging a less intensive, less fearful approach to parenting

Implications: The main takeaway is that fertility policy should reduce fear and raise feasibility: improve housing, marriage prospects, and family confidence rather than rely on cash handouts or doom narratives. Cultural expectations about parenting may matter more than income alone.