Latest / The Demographics Podcast with Fexingo: Aging Populations, Birth Rates, and Economic Impact / How Falling Birth Rates Reshape Public Pension Systems
Transcript
- Lucas: So, we keep talking about falling birth rates and what they do to industries, but there's one place the effect is both immediate and existential: public pensions. And the country everyone points to is Japan. Luna: Right, because Japan has been aging for decades now. What's the actual number that makes it so stark? Lucas: So, in 1990, Japan had about five workers for every retiree. By 2020, that had fallen to two. And by 2050, projections say it's going to be around one point three workers per retiree. When you're running a pay as you go pension system, which Japan does, that's a massive structural problem. Luna: pay as you go meaning current workers pay for current retirees, right? So fewer workers means less money coming in. Lucas: Exactly. And it's not just Japan. Every developed country is on some version of this path. Germany, Italy, South Korea — they're all seeing their old-age dependency ratios climb. The difference is Japan got there first, so we can see the playbook, and the consequences, in real time. Luna: So what have they actually done about it? I know they've raised the retirement age, but that feels like a drop in the bucket. Lucas: They've done a few things. The retirement age is gradually moving from sixty to sixty-five, and they're now talking about pushing it to seventy. They also introduced something called the Macroeconomic Slide, which automatically reduces pension benefits as life expectancy increases. It's a formula that basically says, if you live longer, you get less per year. Luna: That's clever, but it must be politically painful. I can't imagine voters loving a cut in benefits every time life expectancy ticks up. Lucas: It's been deeply unpopular, but it's also kept the system solvent. Japan's pension system is actually projected to be sustainable until at least 2090 under current rules. That's way better than most other rich countries. The problem is, the benefits are becoming so stingy that many elderly Japanese are working well past retirement just to make ends meet. Luna: Yeah, I've read that a lot of elderly Japanese are still in the workforce. Is that part of the solution, though? More older workers means more contributions. Lucas: It is part of it, but it's a double-edged sword. Older workers do pay into the system, but they also claim benefits longer. And if they're in jobs that younger people might have taken, it can dampen wage growth and career progression for the younger cohort. There's a real intergenerational tension there. Luna: So what's the actual math look like for an average Japanese worker? I mean, what are they getting out of this? Lucas: So, a typical Japanese worker who retires at sixty-five after a full career can expect a monthly pension of roughly two hundred and twenty thousand yen, which is about fifteen hundred dollars. That's not nothing, but it's below the poverty line for a single person in Tokyo. And that's the deal: a solvent system, but with benefits that barely cover living costs. Luna: That sounds like a tough choice. But are there other levers besides cutting benefits and raising the retirement age? What about immigration? Lucas: Immigration is the obvious third lever, and Japan has been very cautious about it. In 2023, they passed some reforms to accept more foreign workers, but the numbers are still tiny compared to, say, Canada or Germany. The cultural and political resistance is high, but the demographics are pushing them into it. I mean, by 2040, they're projected to need about six million foreign workers to fill the labor gap. Luna: Six million is a lot. But I imagine the politics of that are brutal, especially with an aging native population that might feel threatened. Lucas: Right, and that's the core dilemma. Every solution has a political cost. Raising taxes on the young to fund pensions? That's a hard sell when the young already feel squeezed. Cutting benefits for the old? That's political suicide in most countries. Immigration? It changes the social fabric in ways that many people are uncomfortable with. There's no free lunch. Luna: But here's the thing — this isn't just a Japan problem. It's coming to a country near you. I'm thinking of the US Social Security trust fund, which is projected to run out of reserves by 2035 or so. That's less than a decade away. Lucas: Absolutely. And the US is actually in better shape than some European countries, but the political gridlock means nothing gets done until the last minute. And then the fix is likely to be draconian. Europe is even more exposed. Countries like Greece and Italy have public pension expenditures north of fourteen percent of GDP. That's enormous. Luna: So if I'm a young person in any of these countries, what should I be doing? Should I be saving more privately? Should I be planning to work longer? Lucas: Honestly, the prudent advice is to assume that public pensions will be less generous than they are today. That means saving more in private retirement accounts, whether that's a 401k, an IRA, or a personal investment strategy. And it also means staying flexible about when you retire. The age of sixty-five as a default retirement age is going to become a relic. Luna: That's sobering, but it's also a reminder that demographic trends are slow-moving but relentless. You can't ignore them. Lucas: Exactly. And you know, if this conversation has given you a clearer picture of how pensions really work, that's the kind of thing that makes doing this show worth it. The way we keep these episodes free, without ads, is through listener support. So if today gave you something useful, consider buying us a coffee at buy me a coffee dot com slash fexingo. It's a small gesture that keeps this going. Luna: Yeah, and it really does make a difference. We appreciate every single one of you who's ever chipped in. It lets us keep digging into topics like this without worrying about sponsors. Lucas: So, back to the big picture. There's one more thing that's often overlooked in the pension debate, and that's the impact on the wider economy. When a huge chunk of the population is retired, they're not just drawing pensions — they're also consuming less, saving less, and generally reducing the dynamism of the economy. Luna: You mean like the 'Japanification' of the economy? Stagnant growth, low inflation, low interest rates? Lucas: Exactly. Japan has been the poster child for that. And it's not just about pension funds — it's about aggregate demand. When the ratio of workers to retirees shrinks, you have fewer people driving demand for goods and services, and that can lead to a deflationary spiral. That's part of why Japan has struggled with deflation for decades. Luna: So solving the pension problem isn't just about fiscal math — it's about keeping the economy from stagnating. That's a much more complex challenge. Lucas: Right. And it's why some economists argue for a mix of policies: gradual retirement age increases, more immigration, and a deliberate push to keep older workers employed in meaningful roles, not just as convenience store clerks. But that requires a genuine cultural shift about what it means to be old. Luna: And in the meantime, those of us in our thirties and forties should probably be doing a bit of scenario planning. What's the one number you'd tell a listener to remember from this episode? Lucas: I'd say it's the fact that by 2050, there will be roughly one point three workers per retiree in Japan. If you run a pension system on that ratio, you are fundamentally altering the social contract. And every developed country is heading in that direction, just at different speeds. Luna: That's a stark picture. But at least now we know what we're dealing with. Lucas: Yeah. And knowledge is the first step. We'll keep covering this as it unfolds — I suspect it's going to be the defining economic story of the next few decades.