Compose A Two-Part Essay That Addresses The Following: Part ✓ Solved
Compose a two-part essay that addresses the following: Part
Compose a two-part essay that addresses the following: Part 1. Population aging: What is population aging and how does it affect the age structure of a population? What demographic processes produce population aging? Summarize the evidence for population aging in the U.S. Part 2. Select a country other than the U.S. Use the Census International Data Base to generate population pyramids for your country for the years 2017 and 2047. Describe the current and future age structures and discuss the social implications: Describe the current age structure of the country you selected. Would you consider the population of this country to be young or old? Explain your answer. How is the age structure of this country expected to change over the next three decades? How will the changing age structure affect this society? (select one or two important consequences and discuss.) Include figures of the population pyramids for 2017 and 2047 in your essay. You may include external sources; cite sources appropriately.
Paper For Above Instructions
Introduction
Population aging is a defining demographic trend of the 21st century with broad social, economic, and policy implications. This two-part essay first defines population aging, explains how it changes age structure, and describes the demographic processes that create aging populations, then summarizes evidence of aging in the United States. The second part examines Japan (a non-U.S. country) using population pyramids for 2017 and 2047 to describe current and projected age structures and to analyze one or two major societal consequences.
Part 1 — Defining Population Aging and U.S. Evidence
Population aging refers to an increase in the median and mean ages of a population and a rising share of older persons (commonly those aged 65 and over) within the total population (United Nations, 2019). In terms of age structure, aging shifts the distribution upward: the base (children and young adults) narrows, the middle (working-age) cohort may shrink or bulge depending on past fertility patterns, and the apex (older adults) expands. This produces a taller, less triangular population pyramid and higher old-age dependency ratios (the number of older persons per 100 working-age individuals) (U.S. Census Bureau, 2018).
Three primary demographic processes produce population aging: (1) sustained declines in fertility, which reduce the proportion of young people; (2) mortality decline and improvements in survival at older ages, which increase the number and proportion of older adults; and (3) migration patterns that can either mitigate or accentuate aging depending on the age profile of migrants (Bloom, Canning, & Fink, 2010; United Nations, 2019). Cohort effects—large birth cohorts moving through time—also shape the age distribution (e.g., the post-World War II baby boom cohort aging into retirement) (Weeks, 2015).
Evidence for population aging in the U.S. is robust. The U.S. median age rose from about 35 years in 2000 to roughly 38 years by 2018, and the share of the population aged 65+ increased from roughly 12% in 2000 to over 16% by 2019 (U.S. Census Bureau, 2018). Life expectancy increases over the 20th and early 21st centuries and sustained lower fertility rates (fertility at or below replacement in many years) explain much of the shift (CDC/NCHS, 2020). The aging of the baby-boom cohorts accounts for rapid increases in absolute numbers of older adults, and projections show further increases in the 65+ share through mid-century (United Nations, 2019; U.S. Census Bureau, 2018).
Part 2 — Case Study: Japan (Non-U.S. Country)
Data and Visuals


Current Age Structure (2017)
Japan’s 2017 population pyramid shows a narrow base and a wide upper portion: relatively low birth cohorts and a large share of middle-aged and older adults. The shape reflects prolonged low fertility (total fertility rate ≈1.4), high life expectancy (one of the world’s highest), and decades of low population growth (Statistics Bureau of Japan, 2017; NIPSSR, 2017). In 2017, persons aged 65 and older comprised about 27% of the population, giving Japan one of the oldest national populations globally (United Nations, 2019).
Considering this distribution, Japan is clearly an “old” population by demographic standards: both median age and the percentage aged 65+ place it among the most aged societies worldwide (World Bank, 2020).
Projected Changes by 2047
By 2047 the population pyramid is projected to become even more top-heavy: the apex expands as the large middle-age cohorts in 2017 move into older ages, while the base continues to narrow due to persistently low fertility and modest or negative net migration (NIPSSR, 2017; United Nations, 2019). The working-age population (15–64) is expected to shrink substantially in absolute and relative terms, raising the old-age dependency ratio significantly (OECD, 2019).
Social Implications — Two Key Consequences
1) Economic and Labor Supply Pressure: A shrinking working-age population reduces labor supply, constrains economic growth potential, and increases per-worker burden to finance pensions and public services for an expanding older cohort. Japan already faces labor shortages in care, manufacturing, and services; absent productivity gains or increased labor force participation, output and fiscal sustainability may suffer (Bloom et al., 2010; OECD, 2019).
2) Health Care and Long-Term Care Demand: The absolute number of persons needing health services and long-term care rises with aging, increasing demand for geriatric care, chronic disease management, and long-term care financing. Japan’s health system and long-term care insurance face growing cost pressures and workforce shortages in caregiving occupations (WHO, 2015; Japan Ministry of Health, Labour and Welfare, 2018).
Policy Responses and Adaptation
To mitigate these consequences, policy options include raising labor force participation (especially among women and older workers), investing in automation and productivity-enhancing technologies, encouraging selective immigration to offset workforce declines, and reforming pension and long-term care financing to ensure sustainability (OECD, 2019; World Bank, 2020). Japan has pursued some of these measures—expanded childcare to encourage higher fertility, policies to extend working lives, and investments in robotics for eldercare—but demographic inertia means adjustments must be substantial and sustained.
Conclusion
Population aging transforms age structure by increasing the share and number of older adults, driven primarily by low fertility and improved longevity. The United States shows clear evidence of aging, and other nations such as Japan illustrate the more extreme end of the spectrum. Japan’s projected 2047 age structure implies intensified labor and care challenges, requiring policy packages that combine labor-market reforms, productivity investments, and social program adaptations. Understanding and anticipating these structural shifts is essential for resilient economic and social planning.
References
- Bloom, D., Canning, D., & Fink, G. (2010). Implications of population aging for economic growth. In R. D. Lee & A. Mason (Eds.), Population Aging and the Generational Economy (pp. 33–57). Edward Elgar Publishing.
- Centers for Disease Control and Prevention, National Center for Health Statistics (CDC/NCHS). (2020). Health, United States, 2019. U.S. Department of Health and Human Services.
- Japan Ministry of Health, Labour and Welfare. (2018). Annual Health, Labour and Welfare Report 2018.
- National Institute of Population and Social Security Research (NIPSSR). (2017). Population Projections for Japan (2017 revision).
- OECD. (2019). Pensions at a Glance 2019: OECD and G20 Indicators. OECD Publishing.
- Statistics Bureau of Japan. (2017). Population Estimates and Demographic Statistics. Ministry of Internal Affairs and Communications.
- U.S. Census Bureau. (2018). An Aging Nation: The Older Population in the United States. U.S. Department of Commerce.
- United Nations, Department of Economic and Social Affairs, Population Division. (2019). World Population Prospects 2019.
- World Bank. (2020). Population ages 65 and above (% of total). World Development Indicators.
- World Health Organization. (2015). World report on ageing and health. WHO Press.