This book examines the long term consequences of improvements in life expectancy in the mid 20th century which are partly responsible for the growth of the elderly population in the developing world. Rapid demographic changes in child and infant mortality due to the reduction in and better treatment of disease were not often accompanied by parallel increases in standard of living. Lower mortality led to greater survival by those who had suffered poor early life conditions. As a consequence, the early life of these survivors may explain older adult health and in particular the projected increase in adult health disease and diabetes. Recent dietary changes may only compound such early life effects. This study presents findings from historical and survey data on nearly 147,000 older adults in 20 low-, middle- and high-income countries which suggest that the survivors of poor early life conditions born during the 1930s-1960s are susceptible to disease later in life, specifically diabetes and heart disease. As the evidence that the aging process is shaped throughout the entire life course increases, this book adds to the knowledge regarding early life events and older adult health.

As the United States and the rest of the world face the unprecedented challenge of aging populations, this volume draws together for the first time state-of-the-art work from the emerging field of the demography of aging. The nine chapters, written by experts from a variety of disciplines, highlight data sources and research approaches, results, and proposed strategies on a topic with major policy implications for labor forces, economic well-being, health care, and the need for social and family supports.

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.

The effect of demography on economic performance has been the subject of intense debate in economics for nearly two centuries. In recent years opinion has swung between the Malthusian views of Coale and Hoover, and the cornucopian views of Julian Simon. Unfortunately, until recently, data weretoo weak and analytical models too limited to provide clear insights into the relationship. As a result, economists as a group have not been clear or conclusive.This volume, which is based on a collection of papers that heavily rely on data from the 1980s and 1990s and on new analytical approaches, sheds important new light on demographic--economic relationships, and it provides clearer policy conclusions than any recent work on the subject. In particular,evidence from developing countries throughout the world shows a pattern in recent decades that was not evident earlier: countries with higher rates of population growth have tended to see less economic growth. An analysis of the role of demography in the "Asian economic miracle" strongly suggeststhat changes in age structures resulting from declining fertility create a one-time "demographic gift" or window of opportunity, when the working age population has relatively few dependants, of either young or old age, to support. Countries which recognize and seize on this opportunity can, as theAsian tigers did, realize healthy bursts in economic output. But such results are by no means assured: only for countries with otherwise sound economic policies will the window of opportunity yield such dramatic results. Finally, several of the studies demonstrate the likelihood of a causalrelationship between high fertility and poverty. While the direction of causality is not always clear and very likely is reciprocal (poverty contributes to high fertility and high fertility reinforces poverty), the studies support the view that lower fertility at the country level helps create apath out of poverty for many families.Population Matters represents an important further step in our understanding of the contribution of population change to economic performance. As such, it will be a useful volume for policymakers both in developing countries and in international development agencies.

Almost 25 years have passed since the Demography of Aging (1994) was published by the National Research Council. Future Directions for the Demography of Aging is, in many ways, the successor to that original volume. The Division of Behavioral and Social Research at the National Institute on Aging (NIA) asked the National Academies of Sciences, Engineering, and Medicine to produce an authoritative guide to new directions in demography of aging. The papers published in this report were originally presented and discussed at a public workshop held in Washington, D.C., August 17-18, 2017. The workshop discussion made evident that major new advances had been made in the last two decades, but also that new trends and research directions have emerged that call for innovative conceptual, design, and measurement approaches. The report reviews these recent trends and also discusses future directions for research on a range of topics that are central to current research in the demography of aging. Looking back over the past two decades of demography of aging research shows remarkable advances in our understanding of the health and well-being of the older population. Equally exciting is that this report sets the stage for the next two decades of innovative researchâ€"a period of rapid growth in the older American population.

Greater longevity is an indicator of human progress in general. Increased life expectancy and lower fertility rates are changing the population structure worldwide in a major way: the proportion of older persons is rapidly increasing, a process known as population ageing. The process is inevitable and is already advanced in developed countries and progressing quite rapidly in developing ones. The 2007 Survey analyses the implications of population ageing for social and economic development around the world, while recognising that it offers both challenges and opportunities. Among the most pressing issues is that arising from the prospect of a smaller labour force having to support an increasingly larger older population. Paralleling increased longevity are the changes in intergenerational relationships that may affect the provision of care and income security for older persons, particularly in developing countries where family transfers play a major role. At the same time, it is also necessary for societies to fully recognise and better harness the productive and social contributions that older persons can make but are in many instances prevented from making. The Survey argues that the challenges are not insurmountable, but that societies everywhere need to put in place the policies required to confront those challenges effectively and to ensure an adequate standard of living for each of their members, while respecting and promoting the contribution and participation of all.

There is long-standing debate on how population growth affects national economies. A new report from Population Matters examines the history of this debate and synthesizes current research on the topic. The authors, led by Harvard economist David Bloom, conclude that population age structure, more than size or growth per se, affects economic development, and that reducing high fertility can create opportunities for economic growth if the right kinds of educational, health, and labor-market policies are in place. The report also examines specific regions of the world and how their differing policy environments have affected the relationship between population change and economic development.