#Scandinaviaisbetter

Patriotism for dark times

PNRJ core principles, current events, ethics, inequality, politics, public policy , , , , , , , , , , , , , , , , , , , , , , , ,

May 18 JDN 2460814

These are dark times indeed. ICE is now arresting people without warrants, uniforms or badges and detaining them in camps without lawyers or trials. That is, we now have secret police who are putting people in concentration camps. Don’t mince words here; these are not “arrests” or “deportations”, because those actions would require warrants and due process of law.

Fascism has arrived in America, and, just as predicted, it is indeed wrapped in the flag.

I don’t really have anything to say to console you about this. It’s absolutely horrific, and the endless parade of ever more insane acts and violations of civil rights under Trump’s regime has been seriously detrimental to my own mental health and that of nearly everyone I know.

But there is something I do want to say:

I believe the United States of America is worth saving.

I don’t think we need to burn it all down and start with something new. I think we actually had something pretty good here, and once Trump is finally gone and we manage to fix some of the tremendous damage he has done, I believe that we can put better safeguards in place to stop something like this from happening again.

Of course there are many, many ways that the United States could be made better—even before Trump took the reins and started wrecking everything. But when we consider what we might have had instead, the United States turns out looking a lot better than most of the alternatives.

Is the United States especially evil?

Every nation in the world has darkness in its history. The United States is assuredly no exception: Genocide against Native Americans, slavery, Jim Crow, and the Japanese internment to name a few. (I could easily name many more, but I think you get the point.) This country is certainly responsible for a great deal of evil.

But unlike a lot of people on the left, I don’t think the United States is uniquely or especially evil. In fact, I think we have quite compelling reasons to think that the United States overall has been especially good, and could be again.

How can I say such a thing about a country that has massacred natives, enslaved millions, and launched a staggering number of coups?

Well, here’s the thing:

Every country’s history is like that.

Some are better or worse than others, but it’s basically impossible to find a nation on Earth that hasn’t massacred, enslaved, or conquered another group—and often all three. I guess maybe some of the very youngest countries might count, those that were founded by overthrowing colonial rule within living memory. But certainly those regions and cultures all had similarly dark pasts.

So what actually makes the United States different?

What is distinctive about the United States, relative to other countries? It’s large, it’s wealthy, it’s powerful; that is certainly all true. But other nations and empires have been like that—Rome once was, and China has gained and lost such status multiple times throughout its long history.

Is it especially corrupt? No, its corruption ratings are on a par with other First World countries.

Is it especially unequal? Compared to the rest of the First World, certainly; but by world standards, not really. (The world is a very unequal place.)

But there are two things about the United States that really do seem unique.

The first is how the United States was founded.

Some countries just sort of organically emerged. They were originally tribes that lived in that area since time immemorial, and nobody really knows when they came about; they just sort of happened.

Most countries were created by conquering or overthrowing some other country. Usually one king wanted some territory that was held by another king, so he gathered an army and took over that territory and said it was his now. Or someone who wasn’t a king really wanted to become one, so he killed the current king and took his place on the throne.

And indeed, for most of history, most nations have been some variant of authoritarianism. Monarchy was probably the most common, but there were also various kinds of oligarchy, and sometimes military dictatorship. Even Athens, the oldest recorded “democracy”, was really an oligarchy of Greek male property owners. (Granted, the US also started out pretty much the same way.)

I’m glossing over a huge amount of variation and history here, of course. But what I really want to get at is just how special the founding of the United States was.

The United States of America was the first country on Earth to be designed.

Up until that point, countries just sort of emerged, or they governed however their kings wanted, or they sort of evolved over time as different interest groups jockeyed for control of the oligarchy.

But the Constitution of the United States was something fundamentally new. A bunch of very smart, well-read, well-educated people (okay, mostly White male property owners, with a few exceptions) gathered together to ask the bold question: “What is the best way to run a country?”

And they discussed and argued and debated over this, sometimes finding agreement, other times reaching awkward compromises that no one was really satisfied with. But when the dust finally settled, they had a blueprint for a better kind of nation. And then they built it.

This was a turning point in human history.

Since then, hundreds of constitutions have been written, and most nations on Earth have one of some sort (and many have gone through several). We now think of writing a constitution as what you do to make a country. But before the United States, it wasn’t! A king just took charge and did whatever he wanted! There were no rules; there was no document telling him what he could and couldn’t do.

Most countries for most of history really only had one rule:

L’Etat, c’est moi.

Yes, there was some precedent for a constitution, even going all the way back to the Magna Carta; but that wasn’t created when England was founded, it was foisted upon the king after England had already been around for centuries. And it was honestly still pretty limited in how it restricted the king.

Now, it turns out that the Founding Fathers made a lot of mistakes in designing the Constitution; but I think this is quite forgivable, for two reasons:

  1. They were doing this for the first time. Nobody had ever written a constitution before! Nobody had governed a democracy (even of the White male property-owner oligarchy sort) in centuries!
  2. They knew they would make mistakes—and they included in the Constitution itself a mechanism for amending it to correct those mistakes.

And amend it we have, 27 times so far, most importantly the Bill of Rights and the Fifteenth and Nineteenth Amendments, which together finally created true universal suffrage—a real democracy. And even in 1920 when the Nineteenth Amendment was passed, this was an extremely rare thing. Many countries had followed the example of the United States by now, but only a handful of them granted voting rights to women.

The United States really was a role model for modern democracy. It showed the world that a nation governed by its own people could be prosperous and powerful.

The second is how the United States expanded its influence.

Many have characterized the United States as an empire, because its influence is so strongly felt around the world. It is undeniably a hegemon, at least.

The US military is the world’s most powerful, accounting for by far the highest spending (more than the next 9 countries combined!) and 20 of the world’s 51 aircraft carriers (China has 5—and they’re much smaller). (The US military is arguably not the largest since China has more soldiers and more ships. But US soldiers are much better trained and equipped, and the US Navy has far greater tonnage.) Most of the world’s currency exchange is done in dollars. Nearly all the world’s air traffic control is done in English. The English-language Internet is by far the largest, forming nearly the majority of all pages by itself. Basically every computer in the world either runs as its operating system Windows, Mac, or Linux—all of which were created in the United States. And since the US attained its hegemony after World War 2, the world has enjoyed a long period of relative peace not seen in centuries, sometimes referred to as the Pax Americana. These all sound like characteristics of an empire.

Yet if it is an empire, the United States is a very unusual one.

Most empires are formed by conquest: Rome created an empire by conquering most of Europe and North Africa. Britain created an empire by colonizing and conquering natives all around the globe.

Yet aside from the Native Americans (which, I admit, is a big thing to discount) and a few other exceptions, the United States engaged in remarkably little conquest. Its influence is felt as surely across the globe as Britain’s was at the height of the British Empire, yet where under Britain all those countries were considered holdings of the Crown (until they all revolted), under the Pax Americana they all have their own autonomous governments, most of them democracies (albeit most of them significantly flawed—including the US itself, these days).

That is, the United States does not primarily spread its influence by conquering other nations. It primarily spreads its influence through diplomacy and trade. Its primary methods are peaceful and mutually-beneficial. And the world has become tremendously wealthier, more peaceful, and all around better off because of this.

Yes, there are some nuances here: The US certainly has engaged in a large number of coups intended to decide what sort of government other countries would have, especially in Latin America. Some of these coups were in favor of democratic governments, which might be justifiable; but many were in favor of authoritarian governments that were simply more capitalist, which is awful. (Then again, while the US was instrumental in supporting authoritarian capitalist regimes in Chile and South Korea, those two countries did ultimately turn into prosperous democracies—especially South Korea.)

So it still remains true that the United States is guilty of many horrible crimes; I’m not disputing that. What I’m saying is that if any other nation had been in its place, things would most like have been worse. This is even true of Britain or France, which are close allies of the US and quite similar; both of these countries, when they had a chance at empire, took it by brutal force. Even Norway once had an empire built by conquest—though I’ll admit, that was a very long time ago.

I admit, it’s depressing that this is what a good nation looks like.

I think part of the reason why so many on the left imagine the United States to be uniquely evil is that they want to think that somewhere out there is a country that’s better than this, a country that doesn’t have staggering amounts of blood on its hands.

But no, this is pretty much as good as it gets. While there are a few countries with a legitimate claim to being better (mostly #ScandinaviaIsBetter), the vast majority of nations on Earth are not better than the United States; they are worse.

Humans have a long history of doing terrible things to other humans. Some say it’s in our nature. Others believe that it is the fault of culture or institutions. Likely both are true to some extent. But if you look closely into the history of just about anywhere on Earth, you will find violence and horror there.

What you won’t always find is a nation that marks a turning point toward global democracy, or a nation that establishes its global hegemony through peaceful and mutually-beneficial means. Those nations are few and far between, and indeed are best exemplified by the United States of America.

How do we stop overspending on healthcare?

PNRJ inequality, macroeconomics, market failure, politics, public policy, statistics , , , , , , , , , , , , , , , , , , , ,

Dec 10 JDN 2460290

I don’t think most Americans realize just how much more the US spends on healthcare than other countries. This is true not simply in absolute terms—of course it is, the US is rich and huge—but in relative terms: As a portion of GDP, our healthcare spending is a major outlier.

Here’s a really nice graph from Healthsystemtracker.org that illustrates it quite nicely: Almost all other First World countries share a simple linear relationship between their per-capita GDP and their per-capita healthcare spending. But one of these things is not like the other ones….

The outlier in the other direction is Ireland, but that’s because their GDP is wildly inflated by Leprechaun Economics. (Notice that it looks like Ireland is by far the richest country in the sample! This is clearly not the case in reality.) With a corrected estimate of their true economic output, they are also quite close to the line.

Since US GDP per capita ($70,181) is in between that of Denmark ($64,898) and Norway ($80,496) both of which have very good healthcare systems (#ScandinaviaIsBetter), we would expect that US spending on healthcare would similarly be in between. But while Denmark spends $6,384 per person per year on healthcare and Norway spends $7,065 per person per year, the US spends $12,914.

That is, the US spends nearly twice as much as it should on healthcare.

The absolute difference between what we should spend and what we actually spend is nearly $6,000 per person per year. Multiply that out by the 330 million people in the US, and…

The US overspends on healthcare by nearly $2 trillion per year.

This might be worth it, if health in the US were dramatically better than health in other countries. (In that case I’d be saying that other countries spend too little.) But plainly it is not.

Probably the simplest and most comparable measure of health across countries is life expectancy. US life expectancy is 76 years, and has increased over time. But if you look at the list of countries by life expectancy, the US is not even in the top 50. Our life expectancy looks more like middle-income countries such as Algeria, Brazil, and China than it does like Norway or Sweden, who should be our economic peers.

There are of course many things that factor into life expectancy aside from healthcare: poverty and homicide are both much worse in the US than in Scandinavia. But then again, poverty is much worse in Algeria, and homicide is much worse in Brazil, and yet they somehow manage to nearly match the US in life expectancy (actually exceeding it in some recent years).

The US somehow manages to spend more on healthcare than everyone else, while getting outcomes that are worse than any country of comparable wealth—and even some that are far poorer.

This is largely why there is a so-called “entitlements crisis” (as many a libertarian think tank is fond of calling it). Since libertarians want to cut Social Security most of all, they like to lump it in with Medicare and Medicaid as an “entitlement” in “crisis”; but in fact we only need a few minor adjustments to the tax code to make sure that Social Security remains solvent for decades to come. It’s healthcare spending that’s out of control.

Here, take a look.

This is the ratio of Social Security spending to GDP from 1966 to the present. Notice how it has been mostly flat since the 1980s, other than a slight increase in the Great Recession.

This is the ratio of Medicare spending to GDP over the same period. Even ignoring the first few years while it was ramping up, it rose from about 0.6% in the 1970s to almost 4% in 2020, and only started to decline in the last few years (and it’s probably too early to say whether that will continue).

Medicaid has a similar pattern: It rose steadily from 0.2% in 1966 to over 3% today—and actually doesn’t even show any signs of leveling off.

If you look at Medicare and Medicaid together, they surged from just over 1% of GDP in 1970 to nearly 7% today:

Put another way: in 1982, Social Security was 4.8% of GDP while Medicare and Medicaid combined were 2.4% of GDP. Today, Social Security is 4.9% of GDP while Medicare and Medicaid are 6.8% of GDP.

Social Security spending barely changed at all; healthcare spending more than doubled. If we reduced our Medicare and Medicaid spending as a portion of GDP back to what it was in 1982, we would save 4.4% of GDP—that is, 4.4% of over $25 trillion per year, so $1.1 trillion per year.

Of course, we can’t simply do that; if we cut benefits that much, millions of people would suddenly lose access to healthcare they need.

The problem is not that we are spending frivolously, wasting the money on treatments no one needs. On the contrary, both Medicare and Medicaid carefully vet what medical services they are willing to cover, and if anything probably deny services more often than they should.

No, the problem runs deeper than this.

Healthcare is too expensive in the United States.

We simply pay more for just about everything, and especially for specialist doctors and hospitals.

In most other countries, doctors are paid like any other white-collar profession. They are well off, comfortable, certainly, but few of them are truly rich. But in the US, we think of doctors as an upper-class profession, and expect them to be rich.

Median doctor salaries are $98,000 in France and $138,000 in the UK—but a whopping $316,000 in the US. Germany and Canada are somewhere in between, at $183,000 and $195,000 respectively.

Nurses, on the other hand, are paid only a little more in the US than in Western Europe. This means that the pay difference between doctors and nurses is much higher in the US than most other countries.

US prices on brand-name medication are frankly absurd. Our generic medications are typically cheaper than other countries, but our brand name pills often cost twice as much. I noticed this immediately on moving to the UK: I had always been getting generics before, because the brand name pills cost ten times as much, but when I moved here, suddenly I started getting all brand-name medications (at no cost to me), because the NHS was willing to buy the actual brand name products, and didn’t have to pay through the nose to do so.

But the really staggering differences are in hospitals.

Let’s compare the prices of a few inpatient procedures between the US and Switzerland. Switzerland, you should note, is a very rich country that spends a lot on healthcare and has nearly the world’s highest life expectancy. So it’s not like they are skimping on care. (Nor is it that prices in general are lower in Switzerland; on the contrary, they are generally higher.)

A coronary bypass in Switzerland costs about $33,000. In the US, it costs $76,000.

A spinal fusion in Switzerland costs about $21,000. In the US? $52,000.

Angioplasty in Switzerland: $9.000. In the US? $32,000.

Hip replacement: Switzerland? $16,000. The US? $28,000.

Knee replacement: Switzerland? $19,000. The US? $27,000.

Cholecystectomy: Switzerland? $8,000. The US? $16,000.

Appendectomy: Switzerland? $7,000. The US? $13,000.

Caesarian section: Switzerland? $8,000. The US? $11,000.

Hospital prices are even lower in Germany and Spain, whose life expectancies are not as high as Switzerland—but still higher than the US.

These prices are so much lower that in fact if you were considering getting surgery for a chronic condition in the US, don’t. Buy plane tickets to Europe and get the procedure done there. Spend an extra few thousand dollars on a nice European vacation and you’d still end up saving money. (Obviously if you need it urgently you have no choice but to use your nearest hospital.) I know that if I ever need a knee replacement (which, frankly, is likely, given my height), I’m gonna go to Spain and thereby save $22,000 relative to what it would cost in the US. That’s a difference of a car.

Combine this with the fact that the US is the only First World country without universal healthcare, and maybe you can see why we’re also the only country in the world where people are afraid to call an ambulance because they don’t think they can afford it. We are also the only country in the world with a medical debt crisis.

Where is all this extra money going?

Well, a lot of it goes to those doctors who are paid three times as much as in France. That, at least, seems defensible: If we want the best doctors in the world maybe we need to pay for them. (Then again, do we have the best doctors in the world? If so, why is our life expectancy so mediocre?)

But a significant portion is going to shareholders.

You probably already knew that there are pharmaceutical companies that rake in huge profits on those overpriced brand-name medications. The top five US pharma companies took in net earnings of nearly $82 billion last year. Pharmaceutical companies typically take in much higher profit margins than other companies: a typical corporation makes about 8% of its revenue in profit, while pharmaceutical companies average nearly 14%.

But you may not have realized that a surprisingly large proportion of hospitals are for-profit businesses—even though they make most of their revenue from Medicare and Medicaid.

I was surprised to find that the US is not unusual in that; in fact, for-profit hospitals exist in dozens of countries, and the fraction of US hospital capacity that is for-profit isn’t even particularly high by world standards.

What is especially large is the profits of US hospitals. 7 healthcare corporations in the US all posted net incomes over $1 billion in 2021.

Even nonprofit US hospitals are tremendously profitable—as oxymoronic as that may sound. In fact, mean operating profit is higher among nonprofit hospitals in the US than for-profit hospitals. So even the hospitals that aren’t supposed to be run for profit… pretty much still are. They get tax deductions as if they were charities—but they really don’t act like charities.

They are basically nonprofit in name only.

So fixing this will not be as simple as making all hospitals nonprofit. We must also restructure the institutions so that nonprofit hospitals are genuinely nonprofit, and no longer nonprofit in name only. It’s normal for a nonprofit to have a little bit of profit or loss—nobody can make everything always balance perfectly—but these hospitals have been raking in huge profits and keeping it all in cash instead of using it to reduce prices or improve services. In the study I linked above, those 2,219 “nonprofit” hospitals took in operating profits averaging $43 million each—for a total of $95 billion.

Between pharmaceutical companies and hospitals, that’s a total of over $170 billion per year just in profit. (That’s more than we spend on food stamps, even after surge due to COVID.) This is pure grift. It must be stopped.

But that still doesn’t explain why we’re spending $2 trillion more than we should! So after all, I must leave you with a question:

What is America doing wrong? Why is our healthcare so expensive?

The inequality of factor mobility

PNRJ critique of neoclassical economics, public policy, tribal paradigm , , , , , , , , , , , , , , , , , , ,

Sep 24 JDN 2460212

I’ve written before about how free trade has brought great benefits, but also great costs. It occurred to me this week that there is a fairly simple reason why free trade has never been as good for the world as the models would suggest: Some factors of production are harder to move than others.

To some extent this is due to policy, especially immigration policy. But it isn’t just that.There are certain inherent limitations that render some kinds of inputs more mobile than others.

Broadly speaking, there are five kinds of inputs to production: Land, labor, capital, goods, and—oft forgotten—ideas.

You can of course parse them differently: Some would subdivide different types of labor or capital, and some things are hard to categorize this way. The same product, such as an oven or a car, can be a good or capital depending on how it’s used. (Or, consider livestock: is that labor, or capital? Or perhaps it’s a good? Oddly, it’s often discussed as land, which just seems absurd.) Maybe ideas can be considered a form of capital. There is a whole literature on human capital, which I increasingly find distasteful, because it seems to imply that economists couldn’t figure out how to value human beings except by treating them as a machine or a financial asset.

But this four-way categorization is particularly useful for what I want to talk about today. Because the rate at which those things move is very different.

Ideas move instantly. It takes literally milliseconds to transmit an idea anywhere in the world. This wasn’t always true; in ancient times ideas didn’t move much faster than people, and it wasn’t until the invention of the telegraph that their transit really became instantaneous. But it is certainly true now; once this post is published, it can be read in a hundred different countries in seconds.

Goods move in hours. Air shipping can take a product just about anywhere in less than a day. Sea shipping is a bit slower, but not radically so. It’s never been easier to move goods all around the world, and this has been the great success of free trade.

Capital moves in weeks. Here it might be useful to subdivide different types of capital: It’s surely faster to move an oven or even a car (the more good-ish sort of capital) than it is to move an entire factory (capital par excellence). But all in all, we can move stuff pretty fast these days. If you want to move your factory to China or Indonesia, you can probably get it done in a matter of weeks or at most months.

Labor moves in months. This one is a bit ironic, since it is surely easier to carry a single human person—or even a hundred human people—than all the equipment necessary to run an entire factory. But moving labor isn’t just a matter of physically carrying people from one place to another. It’s not like tourism, where you just pack and go. Moving labor requires uprooting people from where they used to live and letting them settle in a new place. It takes a surprisingly long time to establish yourself in a new environment—frankly even after two years in Edinburgh I’m not sure I quite managed it. And all the additional restrictions we’ve added involving border crossings and immigration laws and visas only make it that much slower.

Land moves never. This one seems perfectly obvious, but is also often neglected. You can’t pick up a mountain, a lake, a forest, or even a corn field and carry it across the border. (Yes, eventually plate tectonics will move our land around—but that’ll be millions of years.) Basically, land stays put—and so do all the natural environments and ecosystems on that land. Land isn’t as important for production as it once was; before industrialization, we were dependent on the land for almost everything. But we absolutely still are dependent on the land! If all the topsoil in the world suddenly disappeared, the economy wouldn’t simply collapse: the human race would face extinction. Moreover, a lot of fixed infrastructure, while technically capital, is no more mobile than land. We couldn’t much more easily move the Interstate Highway System to China than we could move Denali.

So far I have said nothing particularly novel. Yeah, clearly it’s much easier to move a mathematical theorem (if such a thing can even be said to “move”) than it is to move a factory, and much easier to move a factory than to move a forest. So what?

But now let’s consider the impact this has on free trade.

Ideas can move instantly, so free trade in ideas would allow all the world to instantaneously share all ideas. This isn’t quite what happens—but in the Internet age, we’re remarkably close to it. If anything, the world’s governments seem to be doing their best to stop this from happening: One of our most strictly-enforced trade agreements, the TRIPS Accord, is about stopping ideas from spreading too easily. And as far as I can tell, region-coding on media goes against everything free trade stands for, yet here we are. (Why, it’s almost as if these policies are more about corporate profits than they ever were about freedom!)

Goods and capital can move quickly. This is where we have really felt the biggest effects of free trade: Everything in the US says “made in China” because the capital is moved to China and then the goods are moved back to the US.

But it would honestly have made more sense to move all those workers instead. For all their obvious flaws, US institutions and US infrastructure are clearly superior to those in China. (Indeed, consider this: We may be so aware of the flaws because the US is especially transparent.) So, the most absolutely efficient way to produce all those goods would be to leave the factories in the US, and move the workers from China instead. If free trade were to achieve its greatest promises, this is the sort of thing we would be doing.


Of course that is not what we did. There are various reasons for this: A lot of the people in China would rather not have to leave. The Chinese government would not want them to leave. A lot of people in the US would not want them to come. The US government might not want them to come.

Most of these reasons are ultimately political: People don’t want to live around people who are from a different nation and culture. They don’t consider those people to be deserving of the same rights and status as those of their own country.

It may sound harsh to say it that way, but it’s clearly the truth. If the average American person valued a random Chinese person exactly the same as they valued a random other American person, our immigration policy would look radically different. US immigration is relatively permissive by world standards, and that is a great part of American success. Yet even here there is a very stark divide between the citizen and the immigrant.

There are morally and economically legitimate reasons to regulate immigration. There may even be morally and economically legitimate reasons to value those in your own nation above those in other nations (though I suspect they would not justify the degree that most people do). But the fact remains that in terms of pure efficiency, the best thing to do would obviously be to move all the people to the place where productivity is highest and do everything there.

But wouldn’t moving people there reduce the productivity? Yes. Somewhat. If you actually tried to concentrate the entire world’s population into the US, productivity in the US would surely go down. So, okay, fine; stop moving people to a more productive place when it has ceased to be more productive. What this should do is average out all the world’s labor productivity to the same level—but a much higher level than the current world average, and frankly probably quite close to its current maximum.

Once you consider that moving people and things does have real costs, maybe fully equaling productivity wouldn’t make sense. But it would be close. The differences in productivity across countries would be small.

They are not small.

Labor productivity worldwide varies tremendously. I don’t count Ireland, because that’s Leprechaun Economics (this is really US GDP with accounting tricks, not Irish GDP). So the prize for highest productivity goes to Norway, at $100 per worker hour (#ScandinaviaIsBetter). The US is doing the best among large countries, at an impressive $73 per hour. And at the very bottom of the list, we have places like Bangladesh at $4.79 per hour and Cambodia at $3.43 per hour. So, roughly speaking, there is about a 20-to-1 ratio between the most productive and least productive countries.

I could believe that it’s not worth it to move US production at $73 per hour to Norway to get it up to $100 per hour. (For one thing, where would we fit it all?) But I find it far more dubious that it wouldn’t make sense to move most of Cambodia’s labor to the US. (Even all 16 million people is less than what the US added between 2010 and 2020.) Even given the fact that these Cambodian workers are less healthy and less educated than American workers, they would almost certainly be more productive on the other side of the Pacific, quite likely ten times as productive as they are now. Yet we haven’t moved them, and have no plans to.

That leaves the question of whether we will move our capital to them. We have been doing so in China, and it worked (to a point). Before that, we did it in Korea and Japan, and it worked. Cambodia will probably come along sooner or later. For now, that seems to be the best we can do.

But I still can’t shake the thought that the world is leaving trillions of dollars on the table by refusing to move people. The inequality of factor mobility seems to be a big part of the world’s inequality, period.

Inequality-adjusted GDP and median income

PNRJ critique of neoclassical economics, inequality , , , , , , , , ,

Dec 11 JDN 2459925

There are many problems with GDP as a measure of a nation’s prosperity. For one, GDP ignores natural resources and ecological degradation; so a tree is only counted in GDP once it is cut down. For another, it doesn’t value unpaid work, so caring for a child only increases GDP if you are a paid nanny rather than the child’s parents.

But one of the most obvious problems is the use of an average to evaluate overall prosperity, without considering the level of inequality.

Consider two countries. In Alphania, everyone has an income of about $50,000. In Betavia, 99% of people have an income of $1,000 and 1% have an income of $10 million. What is the per-capita GDP of each country? Alphania’s is $50,000 of course; but Betavia’s is $100,990. Does it really make sense to say that Betavia is a more prosperous country? Maybe it has more wealth overall, but its huge inequality means that it is really not at a high level of development. It honestly sounds like an awful place to live.

A much more sensible measure would be something like median income: How much does a typical person have? In Alphania this is still $50,000; but in Betavia it is only $1,000.

Yet even this leaves out most of the actual distribution; by definition a median is only determined by what is the 50th percentile. We could vary all other incomes a great deal without changing the median.

A better measure would be some sort of inequality-adjusted per-capita GDP, which rescales GDP based on the level of inequality in a country. But we would need a good way of making that adjustment.

I contend that the most sensible way would be to adopt some kind of model of marginal utility of income, and then figure out what income would correspond to the overall average level of utility.

In other words, average over the level of happiness that people in a country get from their income, and then figure out what level of income would correspond to that level of happiness. If we magically gave everyone the same amount of money, how much would they need to get in order for the average happiness in the country to remain the same?

This is clearly going to be less than the average level of income, because marginal utility of income is decreasing; a dollar is not worth as much in real terms to a rich person as it is to a poor person. So if we could somehow redistribute all income evenly while keeping the average the same, that would actually increase overall happiness (though, for many reasons, we can’t simply do that).

For example, suppose that utility of income is logarithmic: U = ln(I).

This means that the marginal utility of an additional dollar is inversely proportional to how many dollars you already have: U'(I) = 1/I.

It also means that a 1% gain or loss in your income feels about the same regardless of how much income you have: ln((1+r)Y) = ln(Y) + ln(1+r). This seems like a quite reasonable, maybe even a bit conservative, assumption; I suspect that losing 1% of your income actually hurts more when you are poor than when you are rich.

Then the inequality adjusted GDP Y is a value such that ln(Y) is equal to the overall average level of utility: E[U] = ln(Y), so Y = exp(E[U]).

This sounds like a very difficult thing to calculate. But fortunately, the distribution of actual income seems to quite closely follow a log-normal distribution. This means that when we take the logarithm of income to get utility, we just get back a very nice, convenient normal distribution!

In fact, it turns out that for a log-normal distribution, the following holds: exp(E[ln(Y)]) = median(Y)

The income which corresponds to the average utility turns out to simply be the median income! We went looking for a better measure than median income, and ended up finding out that median income was the right measure all along.

This wouldn’t hold for most other distributions; and since real-world economies don’t perfectly follow a log-normal distribution, a more precise estimate would need to be adjusted accordingly. But the approximation is quite good for most countries we have good data on, so even for the ones we don’t, median income is likely a very good estimate.

The ranking of countries by median income isn’t radically different from the ranking by per-capita GDP; rich countries are still rich and poor countries are still poor. But it is different enough to matter.

Luxembourg is in 1st place on both lists. Scandinavian countries and the US are in the top 10 in both cases. So it’s fair to say that #ScandinaviaIsBetter for real, and the US really is so rich that our higher inequality doesn’t make our median income lower than the rest of the First World.

But some countries are quite different. Ireland looks quite good in per-capita GDP, but quite bad in median income. This is because a lot of the GDP in Ireland is actually profits by corporations that are only nominally headquartered in Ireland and don’t actually employ very many people there.

The comparison between the US, the UK, and Canada seems particularly instructive. If you look at per-capita GDP PPP, the US looks much richer at $75,000 compared to Canada’s $57,800 (a difference of 29% or 26 log points). But if you look at median personal income, they are nearly equal: $19,300 in the US and $18,600 in Canada (3.7% or 3.7 log points).

On the other hand, in per-capita GDP PPP, the UK looks close to Canada at $55,800 (3.6% or 3.6 lp); but in median income it is dramatically worse, at only $14,800 (26% or 23 lp). So Canada and the UK have similar overall levels of wealth, but life for a typical Canadian is much better than life for a typical Briton because of the higher inequality in Britain. And the US has more wealth than Canada, but it doesn’t meaningfully improve the lifestyle of a typical American relative to a typical Canadian.