The One-Child Policy Supercharged China’s Economic Miracle. Now It’s Paying the Price.

When China launched its one-child policy more than four decades ago, it sped up an evolution toward smaller family sizes that would have happened more gradually.

The policy supercharged the country’s workforce: By caring for fewer children, young people could be more productive and put aside more money. For years, just as China was opening its economy, the share of working-age Chinese grew faster than the parts of the population that didn’t work. That was a big factor in China’s economic miracle.

There was a price and China is now paying it. Limiting births then means fewer workers now, and fewer women to give birth. A United Nations forecast published Thursday shows how quickly China is aging, a demographic crunch that the U.N. predicts will cut China’s population by more than half by the end of the century.

In the late 1970s, China’s leaders feared a population explosion that would drain the country’s resources. When Deng Xiaoping rolled out the one-child policy nationwide in 1980, he said, “We must do this. Otherwise, our economy cannot be developed well.”

A young population has helped drive economic growth in developing countries across the world, including in China’s neighbor Japan starting in the 1950s. Economists call it a demographic dividend—the window, generally of a few decades, when a country has far more working-age people than young and elderly dependents. As such countries grow wealthier, people naturally choose to have fewer children and the population starts to age.

That was also the trajectory in China—just faster.

Knowingly or not, China essentially borrowed from its own future by accelerating its so-called demographic window. How the effects of the policy have sped up China’s demographic bind is scrambling the long-term models demographers usually work with.

“The challenge with China is that from one year to another the situation can change quite fast,” said Patrick Gerland , head of the U.N.’s population estimates and projection section. “Within the last decade, the changes have been very big, both in policy and in the numbers.”

For example, in its just-published global estimates, the U.N. expects China’s population to drop from 1.4 billion today to 639 million by 2100, a much steeper drop than the 766.7 million it predicted just two years ago.

Even so, the U.N.’s prediction looks optimistic compared with other estimates. Researchers from Victoria University in Australia and the Shanghai Academy of Social Sciences have predicted that China will have just 525 million people by the end of the century.

It is impossible to say what China’s population trajectory would have been without the one-child policy. But a comparison with a broad group of other countries gives a clue.

Research by U.N. demographers illustrates how China’s demographic window opened faster and more sharply than in other “less developed” countries, and then closed equally quickly. The population of Chinese aged 20-64—the age when people are most likely to work—grew faster than children and the elderly in the years after the one-child policy was implemented. Before the policy ended, the trajectories had already reversed.

The broader group of other countries shows a smoother ride with the demographic window lasting well into the 2040s.

With China’s opening to the West, it became the world’s factory floor with millions of young people determined to work their way out of poverty. For most of the next decades, Chinese growth topped double-digit percentages.

The optimism was on full display during the 2008 Beijing Summer Olympic Games. When the global financial crisis hit soon after, China kept growth humming and was credited with helping to save the global economy. A few years later, China overtook Japan as the world’s No. 2 economy .

But by 2013, China’s demographic dividend was largely over, according to research by Andrew Mason , an emeritus professor of economics at the University of Hawaii, and Wang Feng , a sociology professor at the University of California, Irvine.

Now, slowing economic growth and demographic changes feed off each other for a gloomy outlook.

“People always count on the [Chinese] government to do more to prop up the economy but the reality is that there’s not a lot the government can do,” Wang said.

Over the next decades, China’s population is likely to show a contrast from, say, India, where the age distribution is following a more natural progression, or the U.S., where immigrant inflows help counteract the aging of the population.

By the end of the century, the U.S. population will be about two-thirds of China’s, compared with less than a quarter now, according to the U.N.’s latest projections. And by then, India, which has overtaken China as the world’s most populous country , will have more than twice as many people as China.

The real demographic impact in China won’t fully hit until the middle of the century, when many of those born during the one-child policy will reach retirement—while still caring for aging parents, said Wang.

By 2050, the U.N. now projects 31% of Chinese will be 65 or older. By 2100, the share will be 46%, approaching half of the population. In the U.S., the share is expected to be 23% and 28%, respectively.

The U.N.’s revised forecasts see Chinese births dropping below nine million this year. In 2022, it had predicted that 10.6 million would be born in China in 2024. The U.N. now expects China will have only 3.1 million newborns a year by 2100.

Not only are there fewer women to give birth these days, but many young women, mindful of their mothers’ suffering during the one-child policy, are less interested in marriage and children , driving down the fertility rate.

As births slip, China’s elderly population is ballooning.

China expects a glut of more than 40 million new retirees—more than the population of Canada—over the five-year period ending in 2025.

The old-age support ratio, a rough indicator of the number of workers for each retiree used by the Organization for Economic Cooperation and Development, is projected to decline from more than four now to fewer than two in 2050, according to The Wall Street Journal’s calculations of the U.N.’s latest data. It will likely reach one worker per retiree by the end of the century.

In reality, due to China’s low retirement age , with women clocking out as early as 50 and men at 60, the support ratio could be even lower.

Beijing as well as demographers and sociologists have said a highly educated population and the advancement of technology such as artificial intelligence, could help China weather such shocks, as more jobs will be automated.

The U.N.’s Gerland said that while the one-child policy was the main demographic event in recent decades, the waxing and waning in different Chinese age groups also reflect tumultuous periods in China’s past, such as the Cultural Revolution and Great Leap Forward, which had substantial demographic impact on the size of the various cohorts born during these years.

“Because of China’s history, the population is going to carry over some of these memories of the past and it will take many generations for all of these past stories to be forgotten,” he said.

The best financial advice many Australians are receiving right now is not coming from licensed advisers charging by the hour. It is coming through a phone screen, in the ten minutes between work and dinner, from creators who have built credibility the hard way: by being right, being transparent, and being specific in a space where vagueness has always been the easy default.

This is not a ranking by follower count. Follower count is a measure of distribution, not of quality. What follows is a ranking by substance — credentials, accuracy, community depth, and the quality of what an audience actually learns from following these accounts. The distinction matters, because the Australians acting on this content are making real financial decisions with real money.

1- Queenie Tan – Corporate Authorised Representative; Co-Founder & Director, Invest With Queenie & Billroo

There are finance influencers who talk about building wealth, and there are those who document it in real time with receipts. Queenie Tan belongs firmly in the second category. Starting from a $400-per-week income, Tan built her net worth past $1 million while publishing the actual numbers — income, savings rate, investment decisions — for an audience of more than 400,000 across platforms.

She is a Corporate Authorised Representative, co-founder of the personal finance app Billroo, and the author of a book that has become a practical reference for young Australians navigating ETFs, superannuation and property. What separates her from the crowded field of money educators is precision: she does not talk in principles when she can talk in percentages.

2- Alan Kohler – Editor-in-Chief, Eureka Report; Editor-in-Chief, InvestSMART Group; ABC News finance presenter, host of Inside Business.

If Queenie Tan represents the new wave of personal finance creators, Alan Kohler represents something the new wave will spend decades trying to build: institutional credibility that has survived multiple economic cycles. As Editor-in-Chief of the Eureka Report and InvestSMART Group, and a decades-long presence on ABC News, Kohler has spent more than thirty years making financial analysis accessible without dumbing it down.

His coverage of RBA decisions, market movements and economic policy is cited by podcasters, journalists and fund managers alike. He is not chasing virality. He does not need to.

3- Aleks Nikolic – Corporate lawyer; host, Big Swinging Stocks podcast

Most finance creators address the mechanics of money. Aleks Nikolic addresses the psychology — and that distinction explains why her following is as loyal as it is. Operating as Broke Girl Wealth across Instagram, TikTok and YouTube, Nikolic covers ETFs, crypto and investment strategy, but her real differentiator is a willingness to discuss the emotional architecture of financial decision-making.

Shame around debt. Fear around market volatility. The limiting beliefs that stop people acting on what they already know. In a space where confidence is routinely performed, her candour is a genuine competitive advantage.

4- Bryce Leske & Alec Renehan – Equity Mates Media

Equity Mates did not build a following. They built a media company. What began as a podcast by two friends learning to invest has grown into Australia’s most established investing media brand, covering ASX stocks, ETFs, global markets and fund manager interviews across podcast, social and YouTube.

The longevity is the credential. Equity Mates has operated through multiple market cycles, a global pandemic, and a generational shift in how Australians engage with investing — and its audience has grown through all of it. When the hosts speak, their listeners know they have been paying attention for years.

5- The Lazy CEO – CEO & Founder, Showpo; Shark Tank Australia investor

The metric that matters most on social media is not followers — it is engagement, because engagement signals trust. Jane Lu, known as The Lazy CEO, maintains an engagement rate of approximately 1.15 per cent on Instagram, which is exceptional for a finance account of his size. Her 242,000-plus followers are not passive consumers: they ask questions, share experiences and apply what they read.

Her content focuses on business finance and wealth building, and the active comment sections are the clearest possible evidence that her audience does not merely scroll past.

6- Tash Invests – Founder, Tash Lends; Forbes Australia 30 Under 30

Tash Invests built her following on a premise that sounds simple but is rarer in practice than it should be: she publishes the actual numbers. Not approximations or ranges or anonymised case studies — her salary, her savings rate, her portfolio value, her net worth, updated and on the record.

Having bought her first property at twenty-two and grown her documented net worth past $1 million, she has become the primary reference point for young Australians trying to understand what building wealth on a moderate income genuinely looks like. The specificity is the product.

7- David Scutt – APAC Market Analyst at StoneX Group

The authority of most finance social media content rests on research and reading. David Scutt‘s authority rests on having done the job. A former Treasury Dealer at Arab Bank and the Commonwealth Bank, former ASX Business Supervisor, and former Global Markets Editor at Business Insider Australia and anchor at ausbiz TV, Scutt now brings that direct market experience to his role as APAC Market Analyst at StoneX Group, rather than relying on secondary commentary.

When he discusses foreign exchange movements or ASX dynamics, it is not because he has read about them. It is because he has traded them.

8- Meddy Demars – Investing & crypto content creator

The gap Meddy Demars fills is specific and underserviced: connecting global macroeconomic events to the practical reality of Australian investors. When the US Federal Reserve adjusts interest rates, when inflation data moves, when commodity prices shift — most Australian finance content either ignores the local implications or translates them poorly.

Demars, operating across TikTok and Instagram from Sydney, does the translation well: explaining what global conditions mean for Australian stocks, savings rates and investment portfolios in terms that are accessible without being condescending.

9- Simran Kaur – Founder, Friends That Invest

Friends That Invest is arguably the most successful community-building exercise in Australian personal finance, and Simran Kaur is the reason why. The New Zealand-based creator — whose audience is predominantly Australian — built a podcast, a book and a social media presence around a single insight: that the personal finance world was not speaking to young women, and that the consequences of that gap were significant.

The measurable cultural shift that followed — women engaging with investing concepts in communities that had not previously existed — is the kind of impact that most financial literacy programmes aim for and rarely achieve.

10- Effie Zahos – Money Editor at 9News

Effie Zahos is one of Australia’s most recognised financial commentators, appearing regularly across 9News, A Current Affair, Today and Today Extra as 9News Money Editor. Her role puts everyday money questions, from mortgage rates to cost-of-living pressures, in front of a national broadcast audience.

Before television, she spent years as editor of Money magazine, building the editorial foundation for her current commentary. She is also Director and Money Commentator at InvestSMART, an ambassador for Canstar, and a published author, with her financial advice available in print as well as on screen.

That combination, decades of editorial experience, an active broadcast presence, and a body of published work, is what makes her commentary carry weight beyond any single platform or post.

The common thread across this list is not follower count or platform presence. It is that each creator has built an audience willing to act on what they say, and for the Australians making financial decisions off the back of this content, that trust is the only thing that actually matters.

The One-Child Policy Supercharged China’s Economic Miracle. Now It’s Paying the Price.

Revised U.N. data shows the speed of China’s aging after it accelerated its ‘demographic dividend’

The voices reshaping how Australians think about money — and why credibility matters more than reach.