Family

Payments at the time of marriage, which are ubiquitous in developing countries, can be substantial enough to impoverish parents. Brideprice and dowry have both been linked to domestic violence against women, and inflation in these payments has prompted legislation against them in several jurisdictions. Marriage payments are often a substitute for investment in female human capital, so from a welfare and policy perspective, they should be prohibited. This highlights the importance of promoting direct economic returns over legal and customary rights.

Research finds that hot weather causes a fall in birth rates nine months later. Evidence suggests that this decline in births is due to hot weather harming reproductive health around the time of conception. Birth rates only partially rebound after the initial decline. Moreover, the rebound shifts births toward summer months, harming infant health by increasing third trimester exposure to hot weather. Worse infant health raises health care costs in the short term as well as reducing labor productivity in the longer term, possibly due to lasting physiological harm from the early life injury.

Demographic factors in migrant-sending countries can influence international migration flows. But when migrants move across borders, they can also influence the pace of demographic transition in their countries of origin. This is because migrants, who predominantly move on a temporary basis, encounter new fertility norms in their host countries and then bring them back home. These new fertility norms can be higher or lower than those in their country of origin. So the new fertility norms that result from migration flows can either accelerate or slow down a demographic transition in migrant-sending countries.

A strong association between incomes across generations—with children from poor families likely to be poor as adults—is frequently considered an indicator of insufficient equality of opportunity. Studies of such “intergenerational persistence,” or lack of intergenerational mobility, measure the strength of the relationship between parents’ socio-economic status and that of their children as adults. However, the association between equality of opportunity and common measures of intergenerational persistence is not as clear-cut as is often assumed. To aid interpretation researchers often compare measures across time and space but must recognize that reliable measurement requires overcoming important data and methodological difficulties.

Since 1989 fertility and family formation have declined sharply in Central and Eastern Europe and the former Soviet Union. Fertility rates are converging on—and sometimes falling below—rates in Western Europe, most of which are below replacement levels. Concerned about a shrinking and aging population and strains on pension systems, governments are using incentives to encourage people to have more children. These policies seem only modestly effective in countering the impacts of widespread social changes, including new work opportunities for women and stronger incentives to invest in education.

The rise in the average age of women bearing their first child is a well-established demographic trend in recent decades. Postponed childbearing can have important consequences for the mothers and, at a macro level, for the country in which they live. Research has primarily focused on the effect postponing fertility has on mothers’ labor market outcomes and on the total number of children a woman has in her lifetime. Most research finds that postponing the first birth raises a mother's labor force participation and wages but may have negative effects on overall fertility, especially in the absence of supportive family-friendly policies.

There is widespread interest in universal early education, both to promote child development and to support maternal employment. Positive long-term findings from small-scale early education interventions for low-income children in the US have greatly influenced the public discussion. However, such findings may be of limited value for policymakers considering larger-scale, more widely accessible programs. Instead, the best insight into the potential impacts of universal early education comes from analysis of these programs themselves, operating at scale. This growing research base suggests that universal early education can benefit both children and families, but quality matters.

Since the 1970s, many countries have established free or highly subsidized education for all preschool children in the hope of improving children’s learning and socio-economic life chances and encouraging mothers to join the labor force. Evaluations reveal that these policies can increase maternal employment in the short term and may continue to do so even after the child is no longer in preschool by enabling mothers to gain more job skills and increase their attachment to the labor force. However, their effectiveness depends on the policy design, the country context, and the characteristics of mothers of preschoolers.