The United States is in the midst of a major demographic shift. In the coming decades, people aged 65 and over will make up an increasingly large percentage of the population: The ratio of people aged 65+ to people aged 20-64 will rise by 80%. This shift is happening for two reasons: people are living longer, and many couples are choosing to have fewer children and to have those children somewhat later in life. The resulting demographic shift will present the nation with economic challenges, both to absorb the costs and to leverage the benefits of an aging population. Aging and the Macroeconomy: Long-Term Implications of an Older Population presents the fundamental factors driving the aging of the U.S. population, as well as its societal implications and likely long-term macroeconomic effects in a global context. The report finds that, while population aging does not pose an insurmountable challenge to the nation, it is imperative that sensible policies are implemented soon to allow companies and households to respond. It offers four practical approaches for preparing resources to support the future consumption of households and for adapting to the new economic landscape.

In sub-Saharan Africa, older people make up a relatively small fraction of the total population and are supported primarily by family and other kinship networks. They have traditionally been viewed as repositories of information and wisdom, and are critical pillars of the community but as the HIV/AIDS pandemic destroys family systems, the elderly increasingly have to deal with the loss of their own support while absorbing the additional responsibilities of caring for their orphaned grandchildren. Aging in Sub-Saharan Africa explores ways to promote U.S. research interests and to augment the sub-Saharan governments' capacity to address the many challenges posed by population aging. Five major themes are explored in the book such as the need for a basic definition of "older person," the need for national governments to invest more in basic research and the coordination of data collection across countries, and the need for improved dialogue between local researchers and policy makers. This book makes three major recommendations: 1) the development of a research agenda 2) enhancing research opportunity and implementation and 3) the translation of research findings.

Currently, Japan has the highest old-age dependency ratio of all OECD countries, with a ratio in 2017 of over 50 persons aged 65 and above for every 100 persons aged 20 to 64. This ratio is projected to rise to 79 per hundred in 2050. The rapid population ageing in Japan is a major challenge for achieving further increases in living standards and ensuring the financial sustainability of public social expenditure. However, with the right policies in place, there is an opportunity to cope with this challenge by extending working lives and making better use of older workers' knowledge and skills. This report investigates policy issues and discusses actions to retain and incentivise the elderly to work more by further reforming retirement policies and seniority-wages, investing in skills to improve productivity and keeping up with labour market changes through training policy, and ensuring good working conditions for better health with tackling long-hours working culture.

The age-distribution of Europe’s workforce has shifted towards older workers over the past few decades, a process expected to accelerate in the years ahead.. This paper studies the effect of the aging of the workforce on labor productivity, identifies the main transmission channels, and examines what policies might mitigate the effects of aging. We find that workforce aging reduces growth in labor productivity, mainly through its negative effect on TFP growth. Projected workforce aging could reduce TFP growth by an average of 0.2 percentage points every year over the next two decades. A variety of policies could ameliorate this effect.

In developed countries, men’s labor force participation at older ages has increased in recent years, reversing a decades-long pattern of decline. Participation rates for older women have also been rising. What explains these patterns, and the differences in them across countries? The answers to these questions are pivotal as countries face fiscal and retirement security challenges posed by longer life-spans. This eighth phase of the International Social Security project, which compares the social security and retirement experiences of twelve developed countries, documents trends in participation and employment and explores reasons for the rising participation rates of older workers. The chapters use a common template for analysis, which facilitates comparison of results across countries. Using within-country natural experiments and cross-country comparisons, the researchers study the impact of improving health and education, changes in the occupation mix, the retirement incentives of social security programs, and the emergence of women in the workplace, on labor markets. The findings suggest that social security reforms and other factors such as the movement of women into the labor force have played an important role in labor force participation trends.

This report examines how the two global mega-trends of population ageing and rising inequalities have been developing and interacting, both within and across generations.