Lyman Stone

Lyman Stone is a demographer, researcher, and writer. His published academic research focuses on demographic topics, including the effect of first births on women's employment in Nepal and Amish fertility in the United States.

63 claims checked on air: 8 context 10 contradicted 9 overstated 18 supported 18 unverified

What they said on air - context

0:26:08needs contextmoderateBirth Rate Debate: “40% Of Girls Will Never Be Mothers”

Within societies, individuals holding more traditional gender attitudes have higher fertility rates.

"It is true that within society, people with more traditional gender attitudes have higher birth rates." (said at 0:26:08)

At the individual level within societies, the relationship between gender role attitudes and fertility is complex and differs substantially by gender, parity, and institutional context. While observational survey research consistently shows that women with traditional gender role attitudes tend to have higher fertility intentions and realized birth rates compared to egalitarian women, this pattern does not consistently hold for men. For men, egalitarian attitudes are often associated with higher childbearing intentions and transitions to subsequent children due to greater domestic task-sharing. Furthermore, demographic literature identifies non-linear or U-shaped dynamics, where both traditional couples and fully egalitarian couples exhibit higher fertility than couples with mismatched or transitional gender attitudes.

1:03:15needs contextmoderateBirth Rate Debate: “40% Of Girls Will Never Be Mothers”

Widowhood and divorce return individuals to their premarital baseline level of happiness.

"widowage and divorce tend to return you to your premarital happiness level. There's three different longitudinal surveys I can demonstrate all of this in." (said at 1:03:15)

Longitudinal research evaluating adaptation after major marital transitions indicates that, on average, individuals adapt back toward their baseline levels of life satisfaction following events like widowhood or divorce. However, this average trend obscures substantial individual variability: adaptation is often incomplete, individuals with strong initial reactions may remain significantly below baseline years later, and marital dissolution can result in lasting changes to subjective well-being for a sizeable portion of the population.

1:32:26needs contextmoderateBirth Rate Debate: “40% Of Girls Will Never Be Mothers”

The average number of children per mother in the United States is around 2.6.

"Children per mother. It's around 2.6." (said at 1:32:26)

The claim specifically refers to fertility among mothers (the intensive margin) rather than all women of reproductive age. In the United States, overall fertility rates (including childless women) are substantially lower (around 1.6 to 1.7 children per woman, with women aged 15–44 averaging 1.3 children at the time of interview and approximately 85% having had a birth by age 40). When restricted to mothers who have completed their childbearing years, the average number of children ever born was historically around 2.4 to 2.6, though completed family sizes among mothers have gradually declined in more recent cohorts.

1:32:50needs contextmoderateBirth Rate Debate: “40% Of Girls Will Never Be Mothers”

Under current US fertility patterns, 40% of 15-year-old females in the US will never become mothers.

"if you're 15 years old today in the US and you live the next 25 years throughout your fertility window just like fertility patterns right now in the US, pretty much six out of 10 will become mothers and four out of 10 will not. Yeah, it's 40% of 15-year-olds today won't become mothers." (said at 1:32:50)

The speaker's calculation reflects a synthetic cohort projection based strictly on unadjusted period first-birth rates (the period total fertility rate for first births, where summing current age-specific first birth rates implies an eventual motherhood rate near 60%, or ~40% childlessness). However, demographic research shows that period synthetic measures are heavily distorted by fertility postponement (the 'tempo effect'), which depresses period rates while women delay childbearing to older ages. In actual cohort data and national surveys, completed childlessness among U.S. women ending their reproductive years has consistently remained around 15% to 20% (with ~85% of women having had a child by age 40), and lifetime intentions to remain childless rarely exceed 15%.

1:35:27needs contextmoderateBirth Rate Debate: “40% Of Girls Will Never Be Mothers”

Men commit approximately 57% to 60% of intimate partner violence.

"Men do about 57 to 60% of intimate partner violence. Maybe not even that much if you trust the raw CDC data." (said at 1:35:27)

According to data from large population-based surveys such as the CDC's National Intimate Partner and Sexual Violence Survey (NISVS), overall self-reported victimization rates for intimate partner violence (IPV)—encompassing psychological aggression, coercive control, and moderate physical violence—are relatively close between men and women (with women reporting slightly higher rates, often corresponding to ~55% to 60% of total reported victimizations in general community survey measures). However, the distribution varies dramatically by severity: men account for a substantially higher proportion (over 80% to 90%) of IPV resulting in severe physical injury, hospitalization, or intimate partner homicide, while general non-injurious conflict exhibits closer gender symmetry in self-reported survey data.

2:40:24needs contextlowBirth Rate Debate: “40% Of Girls Will Never Be Mothers”

Laestadians maintain a fertility rate of five to six children per woman while experiencing an attrition rate of 30% to 40% outside the sect.

"I think the the strongest case is probably actually the Læstadian right? ... they're a fully integrated community that still maintains six kids so five six kids a woman. Um but uh but they do have high attrition rates. I mean they lose I want to say 30 or 40% of their kids um outside of the sect." (said at 2:40:24)

Demographic research in Finland confirms that Conservative Laestadians exhibit significantly elevated fertility rates and large family sizes compared to the general population, driven by strict religious prohibitions on contraception. Published demographic models and sociological surveys of Finnish Laestadians generally find completed fertility averaging around 5 to 6 children per woman in observant households, alongside substantial generational disaffiliation (with estimates indicating roughly 30% to 40% of offspring leaving the movement in adulthood). However, precise individual-level register data on movement membership are limited because Laestadians remain officially part of the Evangelical Lutheran Church of Finland, meaning demographic estimates often rely on regional correlations, survey samples, or historical cohort reconstructions.

3:15:47needs contextlowBirth Rate Debate: “40% Of Girls Will Never Be Mothers”

Historical studies in the United States demonstrate that the passage of child labor laws reduced fertility rates.

"say there actually is a study showing that child labor laws in the in US history do reduce fertility." (said at 3:15:47)

Economic and demographic transition literature links child labor laws and compulsory schooling regulations to declines in fertility. In unified growth and human capital models, restricting child labor removes the economic contribution of children to household income and increases the relative return to education, thereby raising the net cost of childbearing and driving fertility reductions. However, historical economic analyses indicate that the causality is complex and bidirectional: rising technological demands and changing economic returns to education frequently led families to choose lower fertility and greater schooling prior to or alongside the political enactment of child labor regulations, rather than the laws acting purely as an isolated exogenous driver.

3:37:35needs contextmoderateBirth Rate Debate: “40% Of Girls Will Never Be Mothers”

Marriage increases people's happiness, with data showing that the increase in happiness begins after engagement.

"And marriage makes people happier. They get happier after after they're engaged. Okay, people are like, "Well, it's not after they're married. That shows it's not an effect of marriage. It's selection." God damn it, it's after engagement. Okay, we know this. We can see in the in the data when they get engaged." (said at 3:37:35)

Longitudinal panel data tracking subjective well-being across life transitions show that life satisfaction begins rising in the years immediately leading up to marriage (often referred to as an anticipation effect during courtship/engagement) and peaks around the time of the wedding. However, framing this entirely as evidence that 'marriage makes people happier' requires qualification: on average, individuals experience adaptation following the transition, returning close to their pre-marital baseline levels of subjective well-being within a few years (hedonic adaptation), though long-term effects vary across individuals, and baseline selection effects (happier people being more likely to marry) also contribute to cross-sectional differences.

Fact-checked episodes

Publications