Many countries have social security systems that are currently financially unsustainable. Economists and policy makers have long studied this problem and identified two key causes. First, as declining birth rates raise the share of older persons in the population, the ratio of retirees to...

The future of Social Security is troubled, both in the United States and in most other developed countries with aging populations. As improvements in health care and changes in life styles enable retirees to live longer than ever before, the stress on national budgets will increase...

In recent years, the retirement age for public pensions has increased across many countries, and additional increases are in progress or under discussion in many more. The seventh stage of an ongoing research project studying the relationship between social security programs and labor force...

Even as life expectancy in many countries has continued to increase, social security and similar government programs can provide strong incentives for workers to leave the labor force when they reach the age of eligibility for benefits. Disability insurance programs can also play a significant...

In nearly every industrialized country, large aging populations and increased life expectancy have placed enormous pressure on social security programs—and, until recently, the pressure has been compounded by a trend toward retirement at an earlier age. With a larger fraction of the population...