Fertility Issues: Economic, Social, and Contemporary Challenges

Why does the average woman in Kerala have fewer than two children while a woman in Bihar has nearly three? Why do well-off urban couples often stop at one child, while many rural households still consider a small family incomplete without a son? Fertility, it turns out, is rarely just a biological matter. It sits at the crossroads of economics, social custom, and shifting cultural attitudes. The total fertility rate has now slipped to about 2.0 births per woman, just below the replacement level, and the reasons behind this transformation tell a story far richer than any single statistic.

The economic lens: Becker’s theory of fertility 🔗

Nobel laureate Gary Becker pioneered the idea that family size is, in part, a rational economic decision. In his 1960 paper, An Economic Analysis of Fertility, Becker argued that parents make choices about children much like they make choices about other goods, weighing costs, benefits, and the trade-offs between alternatives. His framework remains one of the most influential explanations for why richer societies tend to have smaller families.

The quantity-quality trade-off 🔗

The heart of Becker’s argument lies in what he called the quantity-quality trade-off. As parents become wealthier, they do not simply have more children. Instead, they invest more heavily in each child, paying for better schools, tutoring, healthcare, and extracurriculars. Becker and Lewis later formalised this in a 1973 paper showing that a rise in income tends to increase the quality of children more than their quantity. The result is fewer kids, but each one receiving far more investment.

This explains a familiar pattern in metropolitan households. A middle-class couple in Mumbai or Bengaluru may earn well, yet they often stop at one or two children precisely because raising each child to a competitive standard has become extraordinarily expensive.

Income levels and standards of living 🔗

The relationship between income and fertility is not perfectly linear. In very poor households, children are often seen as economic assets, contributing labour and old-age security. As incomes rise and consumption aspirations grow, the perceived cost of each additional child climbs sharply. Aspirations for a higher standard of living, owning a home, saving for retirement, travelling, generally compete with the resources needed to raise a large family.

Child labour and the changing value of children 🔗

In agrarian and informal economies, children historically contributed to household income through farm work, livestock care, and domestic chores. With expanding school enrolment, stricter child labour laws, and a shift away from agriculture, this economic contribution has shrunk dramatically. Children today are net consumers of household resources for much longer. They go to school for over a decade, depend on parents through college, and increasingly require financial support into adulthood. This shift in the economic value of children is one of the strongest forces pulling fertility down.

Working women and the opportunity cost of motherhood 🔗

When women earn wages outside the home, every child carries an additional cost: the income forgone while caring for that child. Researchers describe this as the motherhood penalty. A longitudinal study using data from the Indian Human Development Survey found that women with more than three children had a noticeably higher probability of exiting the labour market compared to those with two or fewer. Although female labour force participation has been historically low and even declining despite rising education and economic growth, the underlying logic still holds: as women’s earning potential rises, the cost of staying home to raise more children rises with it.

The social lens: customs, beliefs, and identity 🔗

Economics alone cannot explain everything. Two families with similar incomes living in different states often have very different fertility behaviour. Social and cultural forces shape what people want, what they fear, and what they consider acceptable.

The role of religion 🔗

Religion has long been thought to influence family size through beliefs about contraception, gender roles, and the value placed on having children. Survey data does show some differences. According to NFHS-5, the TFR among Hindus was around 1.9 while among Muslims it was 2.4, and Jains have the lowest rate at around 1.2.

However, these gaps are narrowing rapidly. A detailed analysis of NFHS rounds between 1998 and 2021 found that only about 15% of the change in fertility rates is explained by religious and caste differences, while 85% is explained by socio-economic status and access to services. In other words, a poor Hindu woman with no schooling tends to have more children than a wealthy, educated Muslim woman, regardless of religion.

Caste and social stratification 🔗

Caste continues to shape fertility, although less through doctrine and more through socio-economic position. Scheduled Castes and Scheduled Tribes have historically shown higher fertility levels than non-SC/ST groups, largely because they are over-represented among the poor, less educated, and rural. As access to education and healthcare expands, these gaps shrink.

Child marriage and early childbearing 🔗

India’s path to lower fertility differs from that of most other countries. Rather than postponing marriage and motherhood significantly, women have continued to marry and bear children early, but stop after two through sterilisation. Still, the legal age at marriage of 18 for women, combined with rising school enrolment, has gradually pushed the average age at first marriage upward, with steady effects on family size. Where child marriage persists, fertility tends to remain high, simply because reproductive years begin earlier.

Son preference and its demographic shadow 🔗

Few social factors have shaped Indian fertility as powerfully as the preference for sons. Sons are traditionally seen as providers of old-age support, performers of last rites, and bearers of family lineage. Daughters, by contrast, are often associated with dowry costs and seen as joining another family at marriage. The result is a phenomenon demographers call parity progression based on sex composition: couples keep having children until they get the desired number of sons.

Pew Research Center analysis of NFHS data shows that about 15% of Indian women aged 15 to 49 would prefer to have more sons than daughters, while only 3% prefer more daughters. Son preference has also distorted sex ratios at birth through prenatal sex selection, especially in northern states like Haryana and Punjab.

Customs, joint families, and intergenerational pressure 🔗

In many households, decisions about childbearing are not made by the couple alone. In-laws, particularly mothers-in-law, often exercise significant influence over when a young woman should conceive and how many children she should have. Customs around continuing the family line, ensuring a male heir, and timing pregnancies to align with religious or astrological beliefs all shape fertility outcomes in ways that economic models alone cannot capture.

The contemporary lens: new patterns, new pressures 🔗

Some of the most interesting changes in fertility today come from forms of partnership and family that earlier generations rarely imagined.

Late marriages and delayed childbearing 🔗

Across urban India, the average age at marriage has climbed steadily. In Delhi, for instance, the average age of marriage for women rose from 21.7 in 2011 to 24.4 in 2020. Higher education, career building, and financial independence all push marriage later. Once married, couples often delay the first child further, prioritising career stability or housing.

The biological consequences are real. A multi-round NFHS analysis found that women marrying between 30 and 45 years were nearly 7.8 times more likely to experience primary infertility than women married before 18. The same study showed that secondary infertility has risen from around 19.5% in 1992-93 to 28.6% in 2015-16, reflecting how late and lifestyle-driven childbearing patterns can compound into reduced fertility.

Live-in relationships and unmarried fertility 🔗

Live-in relationships remain a small minority of partnerships but are gradually gaining visibility, particularly in metropolitan areas. The Supreme Court of India has, through several judgments, recognised consensual cohabitation between adults as a legitimate arrangement. While Indian society still strongly links childbearing to marriage, the very existence of long-term unmarried partnerships often delays formal marriage and, by extension, reproduction. Unmarried fertility, that is, children born outside marriage, remains rare and socially stigmatised, but its slow normalisation in some pockets is part of a broader cultural shift.

Same-sex relationships and the redefinition of family 🔗

After the Supreme Court decriminalised consensual same-sex relationships in 2018 by reading down Section 377, LGBTQ+ couples have gained legal visibility, even though marriage equality is yet to be recognised. Their fertility journeys, whether through adoption, surrogacy abroad, or assisted reproductive technology, expand the definition of parenthood beyond the heterosexual nuclear family. While the demographic impact remains small in numerical terms, it pushes society to think about fertility outside its conventional frame.

Voluntary childlessness and one-child families 🔗

A growing minority of urban, educated couples are openly choosing to have just one child or none at all. Reasons range from career commitments and high costs of raising children to concerns about climate change and personal lifestyle freedom. This is a remarkable departure from a generation ago, when remaining childfree by choice was almost unthinkable.

Why these issues matter for India’s demographic future 🔗

With fertility now at or just below replacement, India faces a new set of policy questions. Southern states are already grappling with ageing populations and shrinking workforces, while many northern states still have higher fertility and young populations. This demographic divergence shapes everything from labour migration to fiscal transfers to political representation. Understanding the economic, social, and contemporary drivers of fertility is not just academic, it directly informs how India plans for schools, jobs, pensions, and healthcare in the decades ahead.

What do you think? Which force do you believe matters more in shaping family size today: the economic pressures Becker described, or the deeper social customs around son preference, religion, and marriage? And as live-in relationships, late marriages, and same-sex partnerships become more visible, how should the idea of “the Indian family” itself evolve?

References

1. https://pmc.ncbi.nlm.nih.gov/articles/PMC10824390/
2. https://cehd.uchicago.edu/wp-content/uploads/2024/10/Becker-1960-Econ-Analysis-Fertility-HO-STATIC_2024-09-30a_jbb.pdf
3. https://pmc.ncbi.nlm.nih.gov/articles/PMC4547387/
4. https://link.springer.com/article/10.1007/s11113-022-09730-6
5. https://www.ilo.org/sites/default/files/wcmsp5/groups/public/@dgreports/@inst/documents/publication/wcms_250977.pdf
6. https://www.ideasforindia.in/topics/social-identity/hindu-muslim-fertility-differentials-in-india-an-update
7. https://www.theindiaforum.in/society/rapid-convergence-fertility-across-all-socio-religious-groups-india
8. https://www.eastwestcenter.org/sites/default/files/filemanager/Research_Program/NFHS_Subject_Reports/subj-9.pdf
9. https://www.pewresearch.org/religion/2022/08/23/changes-in-son-preference-ultrasound-use-and-fertility/
10. https://rematch.in/find-love-again/late-marriage-indian-society/
11. https://pmc.ncbi.nlm.nih.gov/articles/PMC10368286/