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Can an Aging World Still Prosper? The Economics of Longer Lives

World Elderly Population: How Fast Is Aging?

Americans aged 50 and older already account for 56 cents of every dollar spent in the United States, a share projected to climb to 61 cents by 2050, according to AARP’s Longevity Economy Outlook. That single figure cuts against the instinctive assumption that an aging population is primarily an economic burden. The same generation that dominates consumer spending also supported 88.6 million American jobs in 2018, a number projected to grow to 101.7 million by 2050, and paid $2.1 trillion in tax revenue the same year.

Population aging is real, and it creates genuine fiscal strain. But a separate and less discussed body of economic research asks a different question entirely: what happens when longer lives, not just more retirees, become the basis for growth rather than the obstacle to it.

The Aging Narrative Versus the Aging Economy

Most public discussion of population aging centers on dependency, a shrinking pool of workers supporting a growing pool of retirees, strained pension systems, and rising healthcare costs. These pressures are real and well documented elsewhere in demographic research.

But a parallel concept, sometimes called the longevity economy or the silver economy, reframes the same demographic shift around a different fact: people aged 50 and older are not simply dependents waiting to be supported. They are consumers, taxpayers, workers, caregivers, volunteers, and investors, and in most wealthy countries, they already account for a disproportionate share of economic activity in every one of those roles.

What Is the Longevity Economy?

MIT AgeLab researcher Joseph Coughlin, author of “The Longevity Economy,” describes this population not as a monolithic block of retirees but as a vast, diverse group of consumers, workers, and innovators spanning every level of health and wealth, one that Coughlin’s research valued at approximately $8 trillion in the United States alone as of 2017, a figure he noted was climbing.

This concept differs from the traditional “silver economy” framing, which originated in Japan, the country with the highest proportion of people over 60 in the world, and which focuses more narrowly on goods and services designed specifically for older consumers, from healthcare products to accessible housing. The longevity economy framing is broader: it treats an aging population’s full economic footprint, spending, working, investing, and unpaid contribution, as a single, still-growing engine rather than a niche market segment.

The Scale of the US Longevity Economy, 2018 Data

Economic ContributionFigureProjected by 2050
Share of all US consumer spending (age 50+)56 cents per dollar61 cents per dollar
Jobs supported by the 50-plus population88.6 million101.7 million
Tax revenue contributed by the 50-plus population$2.1 trillionProjected to roughly quadruple
Unpaid contributions (volunteering, caregiving)$745 billionNot separately projected
Charitable contributions$97 billionNot separately projected

Source: AARP, The Longevity Economy Outlook, as cited in AARP’s submission to the UN Open-Ended Working Group on Ageing.

Longer Lives, Longer Spending Power

The demographic foundation behind these figures is straightforward: global life expectancy rose from around 52.5 years in 1960 to 72.5 years by 2020, according to Silver Economy research compiled by financial analysts, and the number of people over 60 worldwide is set to double between 2000 and 2050.

Each additional year of healthy life extends the period during which a person can work, spend, invest, and contribute to their community, and it is this extension, not merely a larger raw headcount of older people, that underlies the longevity economy argument. A population living to 85 in reasonably good health has a fundamentally different economic profile than a population of the same size living to 65, even if the total number of “older” people is identical on paper.

The Cost of Getting This Wrong

The flip side of the longevity economy argument is a specific, quantified cost: AARP’s research found that age discrimination against Americans aged 50 and older cost the US economy $850 billion in 2018 alone, through lost wages, forgone hiring, and reduced labor force participation among older workers who wanted to keep working but faced barriers to doing so. The same research modeled what a “no-age-bias economy” might look like, finding that removing these barriers could add $3.9 trillion in economic contribution from the 50-plus cohort, for a total contribution of $30.7 trillion to GDP by 2050. This is the sharpest empirical version of the argument that an aging population’s economic outcome is not fixed by demographics alone: a meaningful share of the difference between an aging population as burden and an aging population as asset depends on policy and workplace choices that are, at least in principle, within a country’s control.

The Economic Cost of Age Discrimination, US Data

Metric2018 FigureProjected Impact
Cost of age discrimination to the US economy$850 billion (2018)Ongoing annual drag
Additional GDP contribution possible in a no-age-bias economy$3.9 trillionContributing to $30.7 trillion total by 2050

Source: AARP, “The Economic Impact of Age Discrimination,” part of the Longevity Economy Outlook series.

Japan as the Leading Case Study

Japan offers the clearest real-world test of whether an aging society can sustain economic output through workforce adaptation rather than population growth. The country’s labor force share aged 60 and above is expected to rise from 26.4 percent to 31.2 percent by 2040, according to a joint OECD and Japanese Ministry of Health, Labour and Welfare policy review from October 2024, and Japan already posts an employment rate of 74.0 percent among people aged 60 to 64, exceptionally high by international comparison, alongside 52.0 percent among older cohorts still tracked separately in the same data.

Because Japan cannot realistically grow its economy by expanding the raw size of its labor force, given its shrinking overall population, productivity gains and continued labor force participation among its aging population have become, as one McKinsey analysis put it, the primary catalyst available for sustaining economic momentum. Japanese firms have responded with a mix of strategies documented in this research: flexible hours and part-time arrangements for older employees, reassignment of experienced workers into mentorship or specialized roles, and substantial investment in robotics and automation to offset a labor force that cannot grow through demographic means alone.

The Policy Lever: Raising the Retirement Age

Across OECD countries, a striking reversal has taken hold since the mid-1990s: after decades of falling average retirement ages, labor force participation rates among people aged 60 and above have been rising steadily, a trend that continued even through the aftermath of the 2008 financial crisis, a period when employment among younger workers was falling in many of the same countries.

Academic research comparing Denmark, Germany, and Sweden found that the largest increases in labor force participation among people aged 65 to 69 occurred in Sweden and Germany, and that policy reform, specifically financial incentives tied to delayed retirement, explained most of Germany’s gains, while a combination of policy change and rising educational attainment explained Sweden’s. Denmark, where policy changes for this age group have so far been comparatively modest, saw a correspondingly smaller increase, evidence that policy design, not simply demographic pressure, shapes how much of an aging population’s potential labor supply is actually realized.

Older Worker Employment Rates and Trends, Selected Countries

Country/RegionKey FindingDriving Factor
Japan74.0% employment rate, ages 60-64; labor force share 60+ rising to 31.2% by 2040High existing participation; robotics and automation investment
SwedenLargest OECD increase in 65-69 labor force participationCombination of pension policy reform and rising education levels
GermanySecond-largest increase in 65-69 participationPrimarily financial incentive-driven policy reform
DenmarkComparatively small increase in 65-69 participationLimited policy changes targeting this age group so far
European Union overallOld-age dependency ratio projected to exceed 50% by 2050Nearly 30% of EU population projected to be 65+ by 2050

Source: OECD and Japan Ministry of Health, Labour and Welfare joint policy event summary, October 2024; peer-reviewed comparative labor research on Denmark, Germany, and Sweden, published via PMC/NCBI.

Why Raising the Retirement Age Alone Is Not Enough

Research specifically modeling Japan’s aging workforce found that social security reforms raising the retirement age by five years would increase labor force participation among men in their 60s from 58 percent to 69 percent, a substantial gain, but the same research identified an important complication: overall labor productivity growth actually reduces elderly labor force participation through an income effect, since higher earnings potential elsewhere in the economy can make retirement more financially attractive, not less.

Productivity growth specifically among older workers themselves, by contrast, driven by lower skill depreciation as people remain engaged in their fields longer, was found to motivate longer participation. This distinction matters for policy design: broad economic growth alone does not automatically keep older workers employed longer, but targeted investment in keeping older workers’ specific skills current does.

A parallel body of European research reinforces this same point from a different angle: a large proportion of people are simply unable to continue working until an increased statutory retirement age due to poor health and declining work ability, meaning disability retirement and health-driven labor market exit remain major, and difficult to legislate away, obstacles to extending working lives, regardless of how retirement age policy is set on paper.

The Investment Case for an Aging World

Beyond labor policy, the aging population itself has become a recognized investment theme. Financial analysts researching what they term the Silver Economy point to healthcare services tailored to age-related conditions, accessible housing and living arrangements, and simplified technology designed for older users as key sectors positioned to benefit from a global population of people over 60 that is set to double between 2000 and 2050.

Merrill Lynch’s own research into what it calls the “longevity market” identified seven major areas where life priorities shift in retirement, family, work, health, home, giving, leisure, and finances, and found that tailoring financial products and services around these shifting priorities improved customer satisfaction, acquisition, and retention, evidence that businesses treating older consumers as a sophisticated, differentiated market rather than a single undifferentiated “senior” category see measurably better outcomes.

Conclusion

The economics of an aging world are not settled by demographics alone. Japan’s 74.0 percent employment rate among 60-to-64-year-olds and America’s $850 billion age discrimination cost point to the same underlying conclusion from opposite directions: how much economic value an aging population generates depends heavily on workplace policy, health investment, and whether businesses and governments treat older people as a declining cost center or as the consumers, workers, and taxpayers the data already shows they are.

AARP’s own modeling puts a number on that choice, a $3.9 trillion difference in the United States alone between an economy that discriminates against older workers and one that does not, suggesting the aging dividend is less a demographic inevitability than a policy decision still being made.

Frequently Asked Questions

1. What is the “longevity economy”?

It is a framework describing the full economic contribution of the population aged 50 and older, including spending, employment, tax revenue, and unpaid activities like caregiving and volunteering, valued at approximately $8 trillion in the United States alone as of the most recent comprehensive estimate.

2. How much do older Americans contribute to the economy?

People aged 50 and older accounted for 56 cents of every dollar spent in the US in 2018, supported 88.6 million jobs, and contributed $2.1 trillion in tax revenue, figures all projected to grow further by 2050.

3. Is population aging always an economic burden?

Not automatically. While aging creates real fiscal pressure on pension and healthcare systems, research shows a meaningful share of an aging population’s economic outcome depends on policy choices, such as age discrimination in hiring, that are within a country’s control rather than fixed by demographics alone.

4. How much does age discrimination cost the economy?

In the United States, age discrimination against people aged 50 and older cost the economy an estimated $850 billion in 2018, with researchers projecting that eliminating this bias could add $3.9 trillion in economic contribution.

5. How is Japan responding to its aging workforce?

Japan has achieved a 74.0 percent employment rate among people aged 60 to 64, among the highest in the world, while investing heavily in automation and robotics to sustain output as its overall working-age population shrinks.

6. Does raising the retirement age solve the aging workforce problem?

Only partially. Research on Japan found that raising the retirement age by five years would meaningfully increase older worker participation, but broader economic productivity growth can actually reduce older worker participation through an income effect, while poor health remains a major barrier to extending working lives regardless of policy.

7. What is the difference between the “silver economy” and the “longevity economy”?

The silver economy, which originated in Japan, refers more narrowly to goods and services designed for consumers aged 65 and over. The longevity economy is a broader concept encompassing the full economic footprint, spending, working, taxes, and unpaid contribution, of the population aged 50 and older.

8. Which countries have seen the biggest increase in older worker participation?

Among Denmark, Germany, and Sweden, Sweden and Germany saw the largest increases in labor force participation among people aged 65 to 69, driven respectively by a combination of policy and education gains, and primarily by financial incentive-based pension reform.

9. Why can’t Japan simply grow its economy by expanding its workforce?

Japan’s overall population is shrinking, meaning it cannot realistically grow economic output by increasing the raw size of its labor force; instead, productivity gains and sustained participation among older workers have become the primary levers available for economic growth.

10. Is the aging consumer market actually growing?

Yes. The global population aged 60 and older is projected to double between 2000 and 2050, and in the United States specifically, the share of consumer spending attributable to people aged 50 and older is projected to rise from 56 cents to 61 cents of every dollar by 2050.

Sources

  • AARP, The Longevity Economy Outlook and The Economic Impact of Age Discrimination, submitted to the UN Open-Ended Working Group on Ageing
  • Joseph F. Coughlin, MIT AgeLab, “The Longevity Economy: Inside the World’s Fastest-Growing, Most Misunderstood Market,” 2017
  • OECD and Japan Ministry of Health, Labour and Welfare, “Summary and Policy Implications of the OECD and MHLW Joint Event on Elderly Employment Policy 2024”
  • Sagiri Kitao and Nozomi Takeda, “Japan’s Aging Workforce: Determinants and Outlook,” Asian Economic Policy Review, 2025
  • McKinsey Global Institute, “An Aging and Active Labor Force” and “Tokyo Drift”
  • Peer-reviewed comparative research on labour force activity after 65 in Denmark, Germany, and Sweden, National Center for Biotechnology Information
  • Barchart, “The Silver Economy: Unveiling Investment Opportunities in Aging Populations”

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