Demography

The youth population bulge is often mentioned in discussions of youth unemployment and unrest in developing countries. But the youth share of the population has fallen rapidly in recent decades in most countries, and is projected to continue to fall. Evidence on the link between youth bulges and youth unemployment is mixed. It should not be assumed that declines in the relative size of the youth population will translate into falling youth unemployment without further policy measures to improve the youth labor market.

Rising life expectancy and the growing fiscal insolvency of public pension systems have prompted many developed countries to raise the pension entitlement age. The success of such policies depends on the responsiveness of individuals to such changes. Retirement has increasingly become a decision made jointly by a couple rather than individually by one partner. The empirical evidence indicates that almost a third of dual-earner couples in Europe and the US coordinate their retirement decision despite age differences between partners. This joint determination of retirement has important implications for policies intended to reduce the burden of pension costs.

The demand for institutional long-term care is likely to remain high in OECD countries, because of longer life expectancy and falling cohabitation rates of the elderly with family members. As shortages of qualified nurses put a cap on the supply of beds at nursing homes, excess demand builds. That puts upward pressure on prices, which may not reflect the quality of the services that are provided. Monitoring the quality of nursing home services is high on the agenda of OECD governments. Enlisting feedback from family visitors and introducing portable benefits might improve quality at little extra cost.

Population aging in many developed countries has motivated some governments to provide wage subsidies to employers for hiring or retaining older workers. The subsidies are intended to compensate for the gap between the pay and productivity of older workers, which may discourage their hiring. A number of empirical studies have investigated how wage subsidies influence employers’ hiring and employment decisions and whether the subsidies are likely to be efficient. To which groups subsidies should be targeted and how the wage subsidy programs interact with incentives for early retirement are open questions.

Being beautiful gives a person an advantage in many settings. Attractive people earn more and have an easier time getting hired. People spend large amounts of money on goods and services to enhance their beauty. Is this enhancement worth pursuing? Research suggests that the expected improvement in beauty from these goods and services is limited. Therefore, despite the large returns from having an attractive appearance, the cost-effectiveness of investment in beauty enhancement is ambiguous. For the average person, the monetary benefits of plastic surgery, medical treatments to increase height, and expensive clothing are not worth the cost.

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.

The Great Recession that began in 2008–2009 dramatically increased youth unemployment. But did it have long-lasting, adverse effects on the careers of youths? Are cohorts that graduate during a recession doomed to fall permanently behind those that graduate at other times? Are the impacts different for low- and high-educated individuals? If recessions impose penalties that persist over time, then more government outlays are justified to stabilize economic activity. Scientific evidence from a variety of countries shows that rigid labor markets can reinforce the persistence of these setbacks, which has important policy implications.

As migration rates increase across the world, the choice of whether to retire in the host or home country is becoming a key decision for up to 15% of the world’s population, and this proportion is growing rapidly. Large waves of immigrants who re-settled in the second half of the 20th century are now beginning to retire. Although immigrants’ location choice at retirement is an area that has barely been studied, this decision has crucial implications for health care and social protection expenditures, both in host and origin countries.

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.

Countries are not perfectly integrated market areas. Even if institutional differences are much smaller within than between countries, there are persistent local cultural differences. These differences act as barriers that reduce economic exchange: bilateral migration, trade, and knowledge diffusion flows are smaller, and individuals discriminate against unfamiliar dialects. They also act as natural limits to the degree of integration of a labor market, and they cannot (and perhaps should not) be easily affected by policy. Local dialects, shaped over centuries, provide a unique opportunity to measure these barriers.