For policymakers, economists, and families alike, few questions carry more weight than whether the global fertility decline can be reversed. As 2026 unfolds, the evidence has never been clearer: the short answer is no—not in any meaningful, sustained way. Despite unprecedented government spending, emerging biotechnologies, and intensifying pronatalist policies across four continents, the weight of demographic evidence suggests that below-replacement fertility has become the new global norm. The question, therefore, is shifting from “Can we reverse it?” to “How do we adapt to the world it is creating?”
What Is Global Fertility Decline?
Global fertility decline refers to the sustained reduction in the average number of children born per woman over a lifetime—formally known as the total fertility rate (TFR). The replacement rate, the threshold at which a population replaces itself without migration, is 2.1 live births per woman. When a country’s TFR falls below this level for extended periods, its population—absent immigration—eventually shrinks and ages.
The scale of this transition is historically unprecedented. In 1950, the global TFR stood at approximately 4.7 children per woman. By 1990, it had fallen to 3.3. As of 2024, the global TFR has dropped to approximately 2.2—hovering just above replacement but concealing deep disparities between regions . According to the United Nations World Fertility 2024 report, 131 countries and territories now have fertility rates below the replacement level of 2.1.
The 2026 Global Burden of Disease study update, published in The Lancet, projects that by 2050, fertility rates in three-quarters of all countries will be below replacement. By 2100, this will be true for 97 percent—198 out of 204 countries and territories. Only six nations—Samoa, Somalia, Tonga, Niger, Chad, and Tajikistan—are expected to maintain fertility above replacement by century’s end.
Why Fertility Rates Are Falling Worldwide
Understanding why fertility is falling is essential to evaluating whether any intervention can reverse it. The causes are structural, deeply embedded in economic development, cultural transformation, and individual empowerment—not merely the result of transient economic conditions.
Economic development and the demographic transition. As countries industrialize and living standards rise, fertility rates invariably fall. This pattern, observed across every continent, reflects the shift from agrarian economies where children were economic assets to post-industrial economies where they are substantial financial liabilities. The average cost of raising a child to age 18 in developed economies now exceeds $200,000, excluding tertiary education.
Women’s education and labor force participation. Education remains the single most powerful predictor of fertility decline. Across 136 countries studied, researchers found that whenever women achieve reproductive agency—the combination of education, access to contraception, and the ability to make autonomous reproductive decisions—birthrates decline, irrespective of whether the economy is growing or contracting . Nobel laureate Claudia Goldin’s research demonstrates that higher birthrates are no longer tied to economic prosperity; rather, increased female agency consistently correlates with lower fertility.
Housing and economic insecurity. A 2026 study published in Population and Development Review examined childbearing intentions among young adults in Poland, a country emblematic of Europe’s fertility decline. The researchers found that economic security—both stable employment and housing—remains the most salient factor shaping fertility intentions across gender and parenthood status. In high-cost urban centers across Asia, Europe, and North America, housing affordability has emerged as perhaps the most binding constraint on family formation.
Value shifts and delayed life trajectories. Across developed economies, the sequencing of life has fundamentally changed. First births now occur later, with the average maternal age at first birth exceeding 30 in much of Europe and East Asia. This delay compresses the reproductive window and reduces completed fertility, independent of individual preferences for family size.
Countries Trying to Reverse Fertility Decline (Japan, South Korea, Europe, etc.)
Governments have not stood idle. Confronted with aging populations, shrinking workforces, and mounting pressure on pension and healthcare systems, nations across East Asia and Europe have launched ambitious—and expensive—campaigns to raise birthrates.
- South Korea: From emergency to modest rebound. South Korea represents the most acute case of fertility decline in the developed world. The country’s TFR fell to 0.72 in 2023, the lowest ever recorded globally . In June 2024, President Yoon Suk Yeol declared a “national population emergency,” committing the government to all-out efforts to reverse the trend. Early indicators showed a modest rebound to 0.75 in 2024. The government’s “3+3” parental leave policy provides monthly subsidies of up to 300,000 won (approximately $225) per parent, alongside extensive childcare subsidies and housing support.
- Japan: Incremental decline continues. Japan’s fertility rate fell to 1.15 in 2024, with births in the first half of 2025 dropping 3.3 percent to 319,000—a record low . Despite decades of government intervention, including expanded childcare, parental leave, and direct cash transfers, Japan’s population has been declining for more than a decade, with natural decrease now exceeding 899,000 people annually.
- Singapore: Four decades of pronatalism. Singapore began its fertility promotion efforts in 1987—making it one of the longest-running pronatalist experiments in the world. The city-state offers a comprehensive package of “baby bonuses,” child development account matching, and housing priority for families with children, with total incentives reaching tens of thousands of Singapore dollars per child . Yet Singapore’s TFR fell below 1.0 in 2023 and hit a record low of 0.87 in 2025. The pattern—a short-lived rebound followed by continued decline—has become familiar across high-income settings.
- Europe: Diverging outcomes with common constraints. European fertility rates vary considerably, but all remain below replacement. France, with the European Union’s highest fertility at 1.62, has long employed a family policy model featuring steeply progressive benefits that rise with each additional child and a tax system that reduces liability for larger families . Germany, which has invested heavily in childcare guarantees and flexible parental leave, maintains a rate of 1.35. Nordic countries, which have integrated gender equality into family policy, show rates between 1.4 and 1.5. Southern and Eastern Europe lag further behind, with Italy at 1.18, Spain at 1.1, and Poland at 1.1.
The common thread across all these cases is clear: despite sustained, substantial investment, no country has successfully returned its fertility rate to the replacement level of 2.1 after falling significantly below it.
Can Government Policies Increase Birth Rates?
This question lies at the heart of contemporary demographic policy. The evidence, systematically reviewed across dozens of countries, yields a sobering conclusion: government policies can influence fertility at the margins, but they cannot reverse long-term decline.
A 2026 analysis of pronatalist policies worldwide found that even the most generous interventions typically raise fertility by only 0.1 to 0.2 births per woman—an effect that is statistically detectable but demographically insufficient to restore replacement-level fertility. This finding aligns with decades of research demonstrating that cash transfers, tax incentives, and parental leave expansions produce modest, temporary effects that rarely persist across cohorts.
The reasons for this limited efficacy are structural rather than programmatic. As a 2026 Xinhua analysis noted, “Current interventions, such as one-time birth subsidies, limited tax reductions, or increased childcare slots, represent localized welfare additions that fail to address the deeper determinants of fertility intentions”. Policies are often fragmented, politically vulnerable to electoral cycles, and applied with insufficient duration to overcome demographic momentum—population trends that operate on generational timelines.
Even in countries with the most comprehensive family policies—the Nordics, France, Germany—fertility rates remain stubbornly below replacement. As a 2026 Heritage Foundation analysis admitted, “Other nations have tried to reverse declining birthrates through financially generous family policies. None has succeeded”.
The Role of Reproductive Biotechnology in Reversing Fertility Decline
If economic incentives have failed, can technology succeed? Recent advances in reproductive biotechnology have generated considerable excitement—and some overstatement—about their potential to address fertility decline.
- Egg rejuvenation: A scientific breakthrough. In January 2026, Ovo Labs announced the first successful rejuvenation of human eggs using a protein injection technique. The company’s pre-clinical study, presented at Fertility 2026, demonstrated that supplementaging eggs with Shugoshin 1—a protein that maintains chromosome pairing—reduced chromosomal abnormalities from 53 percent to 29 percent in donated human eggs. If validated in clinical trials, this technology could improve IVF success rates for women of advanced maternal age, who currently face per-cycle success rates of 5 percent by age 44.
What egg rejuvenation can and cannot do. The significance of this breakthrough should not be underestimated, but its demographic impact will likely be limited. Egg rejuvenation addresses infertility—the inability to conceive—but does not address the broader drivers of low fertility: the decisions of fertile individuals to delay or forgo childbearing. Moreover, the technology does not extend fertility beyond natural menopause; it improves the quality of existing eggs but does not create new eggs.
The broader biotech landscape. Other reproductive technologies in development include improved IVF screening, artificial intelligence for embryo selection, and potential in-vitro gametogenesis (creating eggs and sperm from stem cells). Each may incrementally increase the options available to those facing infertility. However, infertility affects only a minority of those who desire children; the majority of fertility decline reflects behavioral choices made by reproductively healthy individuals. Biotechnology, therefore, is unlikely to reverse aggregate fertility trends.
Social and Economic Barriers to Higher Birth Rates
Recent research has deepened our understanding of the barriers that shape childbearing decisions. A 2026 study in Population and Development Review using factorial survey design with 1,337 young adults in Poland identified a hierarchy of constraints.
Economic security remains paramount. Both stable employment and housing opportunities emerged as the most salient factors influencing fertility intentions—consistent across gender and parenthood status. For women, access to abortion rights proved the most influential factor for childless women and a significant consideration for mothers and partnered men . This finding underscores that reproductive autonomy—the ability to control whether and when to have children—is itself a critical component of fertility decisions.
Gender equity and the division of labor. The same study found that access to childcare and men’s involvement in domestic work positively influenced women’s intentions, but mattered less for men’s intentions. This pattern reveals that fertility decisions remain asymmetrically burdensome on women, even in societies with relatively progressive gender norms. Policies that increase female labor force participation without addressing the unequal distribution of unpaid care work may actually reduce fertility—a paradox observed in multiple developed economies.
- Climate concerns: Less influential than assumed. Despite widespread media attention to climate anxiety as a driver of fertility decline, the Polish study found climate concerns comparatively less influential than economic factors, housing, and reproductive autonomy. This suggests that while climate considerations may shape some individuals’ decisions, they are not primary drivers of aggregate fertility trends.
Future Predictions: Will Global Fertility Rates Recover by 2030–2050?
The most authoritative forecasting efforts—including the 2026 Lancet study from the Institute for Health Metrics and Evaluation and the United Nations’ World Fertility 2024—paint a consistent picture of continued decline.
- Global trends. The global TFR is projected to fall to approximately 1.8 by 2050 and 1.6 by 2100 . By 2050, three-quarters of all countries will have fertility rates below replacement; by 2100, this will reach 97 percent. The only countries projected to sustain replacement-level fertility by century’s end are Samoa, Somalia, Tonga, Niger, Chad, and Tajikistan.
- Regional divergence. Sub-Saharan Africa will increasingly concentrate global births. Chad currently has the world’s highest fertility, at 7 births per woman. By 2050, the share of global live births occurring in sub-Saharan Africa is projected to rise from 29 percent in 2021 to 54 percent, with further increases thereafter . Meanwhile, East Asia will continue to have the world’s lowest fertility, with rates below 1.0 across much of the region.
- The migration factor. Europe’s population has already begun to depend on migration for growth. In 2024, the European Union recorded 4.82 million deaths and 3.56 million births—a natural decrease of 1.26 million—offset by net migration of 2.3 million to produce modest overall growth. This pattern of migration-dependent population stability will likely become the global norm in regions with sustained low fertility.
As IHME researcher Natalia Bhattacharjee noted, “Once nearly every country’s population is shrinking, reliance on open immigration will become necessary to sustain economic growth”.
Expert Opinions and Scientific Studies
The consensus among demographic researchers has converged on several key conclusions.
- Stein Emil Vollset (IHME): “The world will be simultaneously tackling a ‘baby boom’ in some countries and a ‘baby bust’ in others. We are facing staggering social change through the 21st century”.
- Austin Schumacher (IHME): The demographic divide “requires national governments to implement safe and beneficial policies to help support conditions that can increase birth rates in some regions and lower them in others. Time is of the essence, as current efforts to manage population growth will likely only be felt after 2050”.
- WHO experts (commenting on The Lancet study): Communication about fertility trends “should not be sensationalised, but nuanced, balancing between gloom and optimism.” They noted potential benefits of smaller populations, including reduced environmental pressure and enhanced food security, alongside acknowledged challenges for labor supply and social security systems.
- Claudia Goldin (Nobel laureate): “Wherever you get increased agency, you get reduction in the birth rate”.
- Ugo Bardi (Club of Rome): “Population decline is likely to begin earlier than widely assumed, potentially within the next few decades… The greatest risk societies face lies in institutional unpreparedness, as welfare systems, labor markets and economies remain dependent on outdated assumptions of growth”.
- Teresa Castro Martin (Spanish National Research Council): While The Lancet projects global fertility falling below replacement around 2030, “whereas the UN predicts this to occur around 2050,” emphasizing that projections carry inherent uncertainty.
Can Global Fertility Decline Really Be Reversed?
The evidence from decades of global pronatalist experimentation, supported by the most recent 2026 research updates, yields a clear conclusion: global fertility decline cannot be reversed in any meaningful, sustained sense.
No country that has fallen significantly below replacement fertility has successfully returned to it through policy intervention. The modest effects of even the most generous policies—raising fertility by at most 0.1 to 0.2 births per woman—are insufficient to close the gap to replacement level. Fertility decline is not a policy failure awaiting correction; it is the demographic expression of fundamental economic, social, and cultural transformations that have occurred across every region of the world.
This does not mean that policy is irrelevant. As the 2026 Xinhua analysis argues, “Systematically constructing a fertility support system and promoting long-term balanced and sustainable population development remains an important pathway” . Well-designed policies can reduce the burdens of childrearing, support families, and potentially moderate the pace of decline. But they cannot reverse it.
The more honest and urgent task is adaptation: redesigning pension systems, labor markets, healthcare delivery, and economic growth models for a world where below-replacement fertility is the new, enduring norm. As Ugo Bardi’s 2026 report to the Club of Rome concludes, “The central challenge ahead is adaptation: redesigning institutions so societies can remain stable, equitable and resilient in a world where fewer people, rather than more, may increasingly be the defining condition”.
FA Questions
Can fertility decline be reversed globally?
No. The weight of evidence from 70 years of demographic transition and decades of pronatalist policy experiments indicates that fertility decline cannot be reversed in any sustained sense once a country has fallen significantly below replacement level. Even the most generous government interventions raise fertility by only 0.1–0.2 births per woman—insufficient to restore replacement-level fertility.
Which countries are successfully increasing birth rates?
No country has successfully increased its fertility rate back to replacement level (2.1) after falling significantly below it. Some countries have achieved modest, temporary increases—such as South Korea’s rebound from 0.72 to 0.75 in 2024—but these movements remain far below replacement and often prove unsustainable.
Why are young people having fewer children?
The primary drivers are structural: women’s education and labor force participation, housing affordability constraints, economic insecurity, delayed life trajectories, and the high cost of raising children. A 2026 study found that economic security—stable employment and housing—remains the most salient factor shaping fertility intentions across gender and parenthood status.
Will the world population start shrinking soon?
For many countries, it already has. The European Union’s population would have declined in 2024 without net migration of 2.3 million. By 2050, three-quarters of all countries are projected to have fertility rates below replacement, and global population is expected to peak and begin declining later this century—though projections for the exact timing vary.