A Rant about Long Run Problems and Passe Solutions

If you listen to or read major economists discussing what they think are big-picture problems, then their list usually includes three topics: Fertility, Culture, & the Fiscal Health.  On the wonkier side, you’ll also hear that housing scarcity and affordability is a problem, but let’s stick with the first three.

Fertility

People are deciding to have fewer children for a variety of reasons. In no particular order, the reasons include greater access to financial institutions, more popular female education, higher female wages, lower infant mortality, and falling religiosity. Some also speculate that housing affordability, safety regulations, and social safety nets contribute too.

What’s wrong with lower fertility? In an objective sense, there is nothing wrong. But, in the sense that people value similar things, we are in somewhat uncharted territory. Realized fertility is dropping across the globe. We know that economies of scale increase productivity and real wages. We also know that technological innovation comes from having more minds engaged with economic problems. It’s possible that labor productivity rises faster than the productivity that we lose with smaller scale, but it’s an open question. What happens to the liberal societies and polities when the liberals fail to persist? These are big geopolitical concerns.

Culture

People seem to be more fragmented religiously and culturally. Social scientists used to discuss Judeo-Christian norms more often. Sometimes you’d hear about English or Roman legal tradition or enlightenment values. But now, there seems to be very little in terms of common social cohesion. In the USA, the general common culture seems to be ‘smile and be nice’. That’s not the worst common rule, but it’s not enough to hang our hat on for a capable liberal state.

The lack of cultural cohesion isn’t my own particular concern – public intellectuals in economics and elsewhere feel like there is a problem. There is a mix of reasoning behind the concern. Some people are worried about transmitting values to the next generation, some are worried about how people behave when no one’s watching, and still others are worried about simply lacking a Schelling  point that coordinates large scale economic cooperation.

Fiscal Health

By this time, the poor fiscal health of the US government is renowned. We have growing transfer obligations and no politician has done much to address the looming problem of unfunded liabilities since US president George W. Bush failed to introduce a small reform more than 20 years ago. Republicans keep cutting taxes and neither Republicans nor Democrats are willing to meaningfully cut spending on the larger parts of the federal budget. The trend has been for the federal deficit to grow as a percentage of GDP throughout the 21st century. Since 1980, the federal debt has climbed from 30% to 118% of GDP. Especially in light of the falling fertility, there is increasing concern that the US may need to monetize parts of the deficit/debt, potentially resulting in greater inflation. Right now, economists broadly agree that the deficit places upward pressure on nominal interest rates and makes private investment in productive endeavors more difficult.

Passe Solutions

Economists and other social scientists are generally happy to perform analysis until they are blue in the face. But the above long-run problems are slightly awkward topics for a “value-free” science. If you can’t already tell by my tone, there is a lot of ‘if-then’ analysis and many are not willing to put their neck out and say that there is a real threat to our way of living. After all, who’s to say that we should have more children? Who’s to say that we should attend and fund a weekly religious service? Who’s to say that we ought not monetize the debt?

The problem with these topics is that there is only a problem if you have values. Do we value having more people, or even some arbitrary number of people? If the answer is no, then there is not problem. Do we value specific common goods and beliefs? If not, then zero overlap among our values is the ultimate degree of individuality. The government may default on its debt, but that’s only a problem if you care about the US government’s continuity and capacity to act. Having values among social scientists is passe because it’s not detached and makes one’s argument vulnerable in ways that can’t be addressed with logic and math. It’s not scientific – despite the work that’s been done on culture, public choice, positional goods, etc. We study the pool, but we don’t jump in.

Even popular intellectuals who are worried about these three threats to our flourishing society tend to shrug. They acknowledge the problems and continue about their day. The economists who advocate for having more children, or who bear more children themselves, are few. Some lament the decline in religious participation, but then don’t participate themselves. The public debt problem is a little bit different in that we can’t lead by example with our actions. But we can and should lead by voicing our values.

For the record:

  • I have 4 children, and a 5th on the way. I think that you should have kids or babysit for your friends or pay for their pizza.
  • I’m Catholic and I attend weekly mass. I think that you should go to mass too – or something.
  • I think that the social security retirement age should be 1) higher and 2) a proportion of the average life expectancy. I think that you should wear your ideas on your sleeve, and tell me about them.

5 thoughts on “A Rant about Long Run Problems and Passe Solutions

  1. Reed Hundt's avatar Reed Hundt April 10, 2026 / 6:21 am

    The question about Catholics in the United States is whether they are supporters of Trump or whether they listen to the pope. What is your answer?

    The issue with any particular number of children is whether they are being raised well and how much money that cost. How much are you spending on raising your children?

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  2. yjtank's avatar yjtank April 10, 2026 / 11:32 pm

    I think it’s a hard argument to make, that people should have more children, and if not that, support their friends who have more children, in a country where it’s known to be expensive to have children…on the basis of the country needing more meat for the grinder. I certainly don’t think families make reproductive decisions based on the demographic curves upcoming.

    Put another way: if I were considering having children, and I saw this demographic car crash coming, I don’t know that I would think “better have more kids to Do My Part” instead of “better make sure I can vote with my feet when the crash hits”, especially since – as you’ve noted – the continuing pattern of “don’t cut spending and don’t raise revenue either” isn’t a hole you can or should want to get out of by throwing your children into it.

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  3. Zachary Bartsch's avatar Zachary Bartsch April 12, 2026 / 6:35 pm

    I agree with all of that. I suspect that most economists do not walk the walk – so they find something else convincing too!

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  4. Scott Buchanan's avatar Scott Buchanan April 14, 2026 / 6:56 am

    Several interesting points here.

    (1) If the modern materialist view of reality is correct – – if all that exists is particles and forces – – there is no possible basis for objective moral values. Good and evil become defined by whoever shouts the loudest.

    (2) I think part of the low repro rate is late marriages, for various reasons. One millennial woman who had difficulty in having children after getting married close to 30 told me she spend her best childbearing years in graduate school. I don’t know how to alter this dynamic. Seems like Japan has just accepted its fate of demographic extinction. Europe is trying incentives and social net for increasing births, would be interesting to see how that works.

    (3) I can’t fully wrap head around what happens if debt/GDP keeps increasing at moderate pace but without limit. I guess there must be some mechanism of essentially printing money, which must lead to inflation and higher nominal interest rates. But can the nominal economy still run just fine? Historical examples where this has been OK? I know of historical examples where the currency got so crazy inflated that there was some sort of national agreement to stop the madness and reduce deficit spending, and often issue a whole now (1:10,000 reverse split) currency.

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    • Zachary Bartsch's avatar Zachary Bartsch April 16, 2026 / 4:26 pm

      Some heartening news is that the total fertility rates (births by age 45) have remained steady in the US (maybe even slightly increased!). But, obviously, this omits women currently younger than 45. But we’ll see about the next cohort!

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