The inherent atrocity of “border security”

Jun 24 JDN 2458294

By now you are probably aware of the fact that a new “zero tolerance” border security policy under the Trump administration has resulted in 2,000 children being forcibly separated from their parents by US government agents. If you weren’t, here are a variety of different sources all telling the same basic story of large-scale state violence and terror.

Make no mistake: This is an atrocity. The United Nations has explicitly condemned this human rights violation—to which Trump responded by making an unprecedented threat of withdrawing unilaterally from the UN Human Rights Council.

#ThisIsNotNormal, and Trump was everything we feared—everything we warned—he would be: Corrupt, incompetent, cruel, and authoritarian.

Yet Trump’s border policy differs mainly in degree, not kind, from existing US border policy. There is much more continuity here than most of us would like to admit.

The Trump administration has dramatically increased “interior removals”, the most obviously cruel acts, where ICE agents break into the houses of people living in the US and take them away. Don’t let the cold language fool you; this is literally people with guns breaking into your home and kidnapping members of your family. This is characteristic of totalitarian governments, not liberal democracies.

And yet, the Obama administration actually holds the record for most deportations (though only because they included “at-border deportations” which other administrations did not). A major policy change by George W. Bush started this whole process of detaining people at the border instead of releasing them and requiring them to return for later court dates.

I could keep going back; US border enforcement has gotten more and more aggressive as time goes on. US border security staffing has quintupled since just 1990. There was a time when the United States was a land of opportunity that welcomed “your tired, your poor, your huddled masses”; but that time is long past.

And this, in itself, is a human rights violation. Indeed, I am convinced that border security itself is inherently a human rights violation, always and everywhere; future generations will not praise us for being more restrained than Trump’s abject and intentional cruelty, but condemn us for acting under the same basic moral framework that justified it.

There is an imaginary line in the sand just a hundred miles south of where I sit now. On one side of the line, a typical family makes $66,000 per year. On the other side, a typical family makes only $20,000. On one side of the line, life expectancy is 81 years; on the other, 77. This means that over their lifetime, someone on this side of the line can expect to make over one million dollars more than they would if they had lived on the other side. Step across this line, get a million dollars; it sounds ridiculous, but it’s an empirical fact.

This would be bizarre enough by itself; but now consider that on that line there are fences, guard towers, and soldiers who will keep you from crossing it. If you have appropriate papers, you can cross; but if you don’t, they will arrest and detain you, potentially for months. This is not how we treat you if you are carrying contraband or have a criminal record. This is how we treat you if you don’t have a passport.

How can we possibly reconcile this with the principles of liberal democracy? Philosophers have tried, to be sure. Yet they invariably rely upon some notion that the people who want to cross our border are coming from another country where they were already granted basic human rights and democratic representation—which is almost never the case. People who come here from the UK or the Netherlands or generally have the proper visas. Even people who come here from China usually have visas—though China is by no means a liberal democracy. It’s people who come here from Haiti and Nicaragua who don’t—and these are some of the most corrupt and impoverished nations in the world.

As I said in an earlier post, I was not offended that Trump characterized countries like Haiti and Syria as “shitholes”. By any objective standard, that is accurate; these countries are terrible, terrible places to live. No, what offends me is that he thinks this gives us a right to turn these people away, as though the horrible conditions of their country somehow “rub off” on them and make them less worthy as human beings. On the contrary, we have a word for people who come from “shithole” countries seeking help, and that word is “refugee”.

Under international law, “refugee” has a very specific legal meaning, under which most immigrants do not qualify. But in a broader moral sense, almost every immigrant is a refugee. People don’t uproot themselves and travel thousands of miles on a whim. They are coming here because conditions in their home country are so bad that they simply cannot tolerate them anymore, and they come to us desperately seeking our help. They aren’t asking for handouts of free money—illegal immigrants are a net gain for our fiscal system, paying more in taxes than they receive in benefits. They are looking for jobs, and willing to accept much lower wages than the workers already here—because those wages are still dramatically higher than what they had where they came from.

Of course, that does potentially mean they are competing with local low-wage workers, doesn’t it? Yes—but not as much as you might think. There is only a very weak relationship between higher immigration and lower wages (some studies find none at all!), even at the largest plausible estimates, the gain in welfare for the immigrants is dramatically higher than the loss in welfare for the low-wage workers who are already here. It’s not even a question of valuing them equally; as long as you value an immigrant at least one tenth as much as a native-born citizen, the equation comes out favoring more immigration.

This is for two reasons: One, most native-born workers already are unwilling to do the jobs that most immigrants do, such as picking fruit and laying masonry; and two, increased spending by immigrants boosts the local economy enough to compensate for any job losses.

 

But even aside from the economic impacts, what is the moral case for border security?

I have heard many people argue that “It’s our home, we should be able to decide who lives here.” First of all, there are some major differences between letting someone live in your home and letting someone come into your country. I’m not saying we should allow immigrants to force themselves into people’s homes, only that we shouldn’t arrest them when they try cross the border.

But even if I were to accept the analogy, if someone were fleeing oppression by an authoritarian government and asked to live in my home, I would let them. I would help hide them from the government if they were trying to escape persecution. I would even be willing to house people simply trying to escape poverty, as long as it were part of a well-organized program designed to ensure that everyone actually gets helped and the burden on homeowners and renters was not too great. I wouldn’t simply let homeless people come live here, because that creates all sorts of coordination problems (I can only fit so many, and how do I prioritize which ones?); but I’d absolutely participate in a program that coordinates placement of homeless families in apartments provided by volunteers. (In fact, maybe I should try to petition for such a program, as Southern California has a huge homelessness rate due to our ridiculous housing prices.)

Many people seem to fear that immigrants will bring crime, but actually they reduce crime rates. It’s really kind of astonishing how much less crime immigrants commit than locals. My hypothesis is that immigrants are a self-selected sample; the kind of person willing to move thousands of miles isn’t the kind of person who commits a lot of crimes.
I understand wanting to keep out terrorists and drug smugglers, but there are already plenty of terrorists and drug smugglers here in the US; if we are unwilling to set up border security between California and Nevada, I don’t see why we should be setting it up between California and Baja California. But okay, fine, we can keep the customs agents who inspect your belongings when you cross the border. If someone doesn’t have proper documentation, we can even detain and interrogate them—for a few hours, not a few months. The goal should be to detect dangerous criminals and nothing else. Once we are confident that you have not committed any felonies, we should let you through—frankly, we should give you a green card. We should only be willing to detain someone at the border for the same reasons we would be willing to detain a citizen who already lives here—that is, probable cause for an actual crime. (And no, you don’t get to count “illegal border crossing” as a crime, because that’s begging the question. By the same logic I could justify detaining people for jaywalking.)

A lot of people argue that restricting immigration is necessary to “preserve local culture”; but I’m not even sure that this is a goal sufficiently important to justify arresting and detaining people, and in any case, that’s really not how culture works. Culture is not advanced by purism and stagnation, but by openness and cross-pollination. From anime to pizza, many of our most valued cultural traditions would not exist without interaction across cultural boundaries. Introducing more Spanish speakers into the US may make us start saying no problemo and vamonos, but it’s not going to destroy liberal democracy. If you value culture, you should value interactions across different societies.

Most importantly, think about what you are trying to justify. Even if we stop doing Trump’s most extreme acts of cruelty, we are still talking about using military force to stop people from crossing an imaginary line. ICE basically treats people the same way the SS did. “Papers, please” isn’t something we associate with free societies—it’s characteristic of totalitarianism. We are so accustomed to border security (or so ignorant of its details) that we don’t see it for the atrocity it so obviously is.

National borders function something very much like feudal privilege. We have our “birthright”, which grants us all sorts of benefits and special privileges—literally tripling our incomes and extending our lives. We did nothing to earn this privilege. If anything, we show ourselves to be less deserving (e.g. by committing more crimes). And we use the government to defend our privilege by force.

Are people born on the other side of the line less human? Are they less morally worthy? On what grounds do we point guns at them and lock them away for the “crime” of wanting to live here?

What Trump is doing right now is horrific. But it is not that much more horrific than what we were already doing. My hope is that this will finally open our eyes to the horrors that we had been participating in all along.

What we could, what we should, and what we must

May 27 JDN 2458266

In one of the most famous essays in all of ethical philosophy, Peter Singer famously argued that we are morally obligated to give so much to charity that we would effectively reduce ourselves to poverty only slightly better than what our donations sought to prevent. His argument is a surprisingly convincing one, especially for such a radical proposition. Indeed, one of the core activities of the Effective Altruism movement has basically been finding ways to moderate Singer’s argument without giving up on its core principles, because it’s so obvious both that we ought to do much more to help people around the world and that there’s no way we’re ever going to do what that argument actually asks of us.

The most cost-effective charities in the world can save a human life for an average cost of under $4,000. The maneuver that Singer basically makes is quite simple: If you know that you could save someone’s life for $4,000, you have $4,000 to spend, and instead you spend that $4,000 on something else, aren’t you saying that whatever you did spend it on was more important than saving that person’s life? And is that really something you believe?

But if you think a little more carefully, it becomes clear that things are not quite so simple. You aren’t being paid $4,000 to kill someone, first of all. If you were willing to accept $4,000 as sufficient payment to commit a murder, you would be, quite simply, a monster. Implicitly the “infinite identical psychopath” of neoclassical rational agent models would be willing to do such a thing, but very few actual human beings—even actual psychopaths—are that callous.

Obviously, we must refrain from murdering people, even for amounts far in excess of $4,000. If you were offered the chance to murder someone for $4 billion dollars, I can understand why you would be tempted to do such a thing. Think of what you could do with all that money! Not only would you and everyone in your immediate family be independently wealthy for life, you could donate billions of dollars to charity and save as much as a million lives. What’s one life for a million? Even then, I have a strong intuition that you shouldn’t commit this murder—but I have never been able to find a compelling moral argument for why. The best I’ve been able to come up with a sort of Kantian notion: What if everyone did this?

Since the most plausible scenario is that the $4 billion comes from existing wealth, all those murders would simply be transferring wealth around, from unknown sources. If you stipulate where the wealth comes from, the dilemma can change quite a bit.

Suppose for example the $4 billion is confiscated from Bashar Al-Assad. That would be in itself a good thing, lessening the power of a genocidal tyrant. So we need to add that to the positive side of the ledger. It is probably worth killing one innocent person just to undermine Al-Assad’s power; indeed, the US Air Force certainly seems to think so, as they average more than one civilian fatality every day in airstrikes.

Now suppose the wealth was extracted by clever financial machinations that took just a few dollars out of every bank account in America. This would be in itself a bad thing, but perhaps not a terrible thing, especially since we’re planning on giving most of it to UNICEF. Those people should have given it anyway, right? This sounds like a pretty good movie, actually; a cyberpunk Robin Hood basically.

Next, suppose it was obtained by stealing the life savings of a million poor people in Africa. Now the method of obtaining the money is so terrible that it’s not clear that funneling it through UNICEF would compensate, even if you didn’t have to murder someone to get it.

Finally, suppose that the wealth is actually created anew—not printed money from the Federal Reserve, but some new technology that will increase the world’s wealth by billions of dollars yet requires the death of an innocent person to create. In this scenario, the murder has become something more like the inherent risk in human subjects biomedical research, and actually seems justifiable. And indeed, that fits with the Kantian answer, for if we all had the chance to kill one person in order to create something that would increase the wealth of the world by $4 billion, we could turn this planet into a post-scarcity utopia within a generation for fewer deaths than are currently caused by diabetes.

Anyway, my point here is that the detailed context of a decision actually matters a great deal. We can’t simply abstract away from everything else in the world and ask whether the money is worth the life.

When we consider this broader context with regard to the world’s most cost-effective charities, it becomes apparent that a small proportion of very dedicated people giving huge proportions of their income to charity is not the kind of world we want to see.

If I actually gave so much that I equalized my marginal utility of wealth to that of a child dying of malaria in Ghana, I would have to donate over 95% of my income—and well before that point, I would be homeless and impoverished. This actually seems penny-wise and pound-foolish even from the perspective of total altruism: If I stop paying rent, it gets a lot harder for me to finish my doctorate and become a development economist. And even if I never donated another dollar, the world would be much better off with one more good development economist than with even another $23,000 to the Against Malaria Foundation. Once you factor in the higher income I’ll have (and proportionately higher donations I’ll make), it’s obviously the wrong decision for me to give 95% of $25,000 today rather than 10% of $70,000 every year for the next 20 years after I graduate.

But the optimal amount for me to donate from that perspective is whatever the maximum would be that I could give without jeopardizing my education and career prospects. This is almost certainly more than I am presently giving. Exactly how much more is actually not all that apparent: It’s not enough to say that I need to be able to pay rent, eat three meals a day, and own a laptop that’s good enough for programming and statistical analysis. There’s also a certain amount that I need for leisure, to keep myself at optimal cognitive functioning for the next several years. Do I need that specific video game, that specific movie? Surely not—but if I go the next ten years without ever watching another movie or playing another video game, I’m probably going to be in trouble psychologically. But what exactly is the minimum amount to keep me functioning well? And how much should I be willing to spend attending conferences? Those can be important career-building activities, but they can also be expensive wastes of time.

Singer acts as though jeopardizing your career prospects is no big deal, but this is clearly wrong: The harm isn’t just to your own well-being, but also to your productivity and earning power that could have allowed you to donate more later. You are a human capital asset, and you are right to invest in yourself. Exactly how much you should invest in yourself is a much harder question.
Such calculations are extremely difficult to do. There are all sorts of variables I simply don’t know, and don’t have any clear way of finding out. It’s not a good sign for an ethical theory when even someone with years of education and expertise on specifically that topic still can’t figure out the answer. Ethics is supposed to be something we can apply to everyone.

So I think it’s most helpful to think in those terms: What could we apply to everyone? What standard of donation would be high enough if we could get everyone on board?

World poverty is rapidly declining. The direct poverty gap at the UN poverty line of $1.90 per day is now only $80 billion. Realistically, we couldn’t simply close that gap precisely (there would also be all sorts of perverse incentives if we tried to do it that way). But the standard estimate that it would take about $300 billion per year in well-targeted spending to eliminate world hunger is looking very good.

How much would each person, just those in the middle class or above within the US or the EU, have to give in order to raise this much?
89% of US income is received by the top 60% of households (who I would said are unambiguously “middle class or above”). Income inequality is not as extreme within the EU, so the proportion of income received by the top 60% seems to be more like 75%.

89% of US GDP plus 75% of EU GDP is all together about $29 trillion per year. This means that in order to raise $300 billion, each person in the middle class or above would need to donate just over one percent of their income.

Not 95%. Not 25%. Not even 10%. Just 1%. That would be enough.

Of course, more is generally better—at least until you start jeopardizing your career prospects. So by all means, give 2% or 5% or even 10%. But I really don’t think it’s helpful to make people feel guilty about not giving 95% when all we really needed was for everyone to give 1%.

There is an important difference between what we could do, what we should do, and what we must do.

What we must do are moral obligations so strong they are essentially inviolable: We must not murder people. There may be extreme circumstances where exceptions can be made (such as collateral damage in war), and we can always come up with hypothetical scenarios that would justify almost anything, but for the vast majority of people the vast majority of time, these ethical rules are absolutely binding.

What we should do are moral obligations that are strong enough to be marks against your character if you break them, but not so absolutely binding that you have to be a monster not to follow them. This is where I put donating at least 1% of your income. (This is also where I put being vegetarian, but perhaps that is a topic for another time.) You really ought to do it, and you are doing something wrongful if you don’t—but most people don’t, and you are not a terrible person if you don’t.

This latter category is in part socially constructed, based on the norms people actually follow. Today, slavery is obviously a grave crime, and to be a human trafficker who participates in it you must be a psychopath. But two hundred years ago, things were somewhat different: Slavery was still wrong, yes, but it was quite possible to be an ordinary person who was generally an upstanding citizen in most respects and yet still own slaves. I would still condemn people who owned slaves back then, but not nearly as forcefully as I would condemn someone who owned slaves today. Two hundred years from now, perhaps vegetarianism will move up a category: The norm will be that everyone eats only plants, and someone who went out of their way to kill and eat a pig would have to be a psychopath. Eating meat is already wrong today—but it will be more wrong in the future. I’d say the same about donating 1% of your income, but actually I’m hoping that by two hundred years from now there will be no more poverty left to eradicate, and donation will no longer be necessary.

Finally, there is what we could do—supererogatory, even heroic actions of self-sacrifice that would make the world a better place, but cannot be reasonably expected of us. This is where donating 95% or even 25% of your income would fall. Yes, absolutely, that would help more people than donating 1%; but you don’t owe the world that much. It’s not wrong for you to contribute less than this. You don’t need to feel guilty for not giving this much.

But I do want to make you feel guilty if you don’t give at least 1%. Don’t tell me you can’t. You can. If your income is $30,000 per year, that’s $300 per year. If you needed that much for a car repair, or dental work, or fixing your roof, you’d find a way to come up with it. No one in the First World middle class is that liquidity-constrained. It is true that half of Americans say they couldn’t come up with $400 in an emergency, but I frankly don’t believe it. (I believe it for the bottom 25% or so, who are actually poor; but not half of Americans.) If you have even one credit card that’s not maxed out, you can do this—and frankly even if a card is maxed out, you can probably call them and get them to raise your limit. There is something you could cut out of your spending that would allow you to get back 1% of your annual income. I don’t know what it is, necessarily: Restaurants? Entertainment? Clothes? But I’m not asking you to give a third of your income—I’m asking you to give one penny out of every dollar.

I give considerably more than that; my current donation target is 8% and I’m planning on raising it to 10% or more once I get a high-paying job. I live on a grad student salary which is less than the median personal income in the US. So I know it can be done. But I am very intentionally not asking you to give this much; that would be above and beyond the call of duty. I’m only asking you to give 1%.

Sympathy for the incel

Post 237: May 6 JDN 2458245

If you’ve been following the news surrounding the recent terrorist attack in Toronto, you may have encountered the word “incel” for the first time via articles in NPR, Vox, USA Today, or other sources linking the attack to the incel community.

If this was indeed your first exposure to the concept of “incel”, I think you are getting a distorted picture of their community, which is actually a surprisingly large Internet subculture. Finding out about incel this way would be like finding out about Islam from 9/11. (Actually, I’m fairly sure a lot of Americans did learn that way, which is awful.) The incel community is remarkably large one—hundreds of thousands of members at least, and quite likely millions.

While a large proportion subscribe to a toxic and misogynistic ideology, a similarly large proportion do not; while the ideology has contributed to terrorism and other violence, the vast majority of members of the community are not violent.

Note that the latter sentence is also entirely true of Islam. So if you are sympathetic toward Muslims and want to protect them from abuse and misunderstanding, I maintain that you should want to do the same for incels, and for basically the same reasons.

I want to make something abundantly clear at the outset:

This attack was terrorism. I am in no way excusing or defending the use of terrorism. Once someone crosses the line and starts attacking random civilians, I don’t care what their grievances were; the best response to their behavior involves snipers on rooftops. I frankly don’t even understand the risks police are willing to take in order to capture these people alive—especially considering how trigger-happy they are when it comes to random Black men. If you start shooting (or bombing, or crashing vehicles into) civilians, the police should shoot you. It’s that simple.

I do not want to evoke sympathy for incel-motivated terrorism. I want to evoke sympathy for the hundreds of thousands of incels who would never support terrorism and are now being publicly demonized.

I also want to make it clear that I am not throwing in my hat with the likes of Robin Hanson (who is also well-known as a behavioral economist, blogger, science fiction fan, Less Wrong devotee, and techno-utopian—so I feel a particular need to clarify my differences with him) when he defends something he calls in purposefully cold language “redistribution of sex” (that one is from right after the attack, but he has done this before, in previous blog posts).

Hanson has drunk Robert Nozick‘s Kool-Aid, and thinks that redistribution of wealth via taxation is morally equivalent to theft or even slavery. He is fond of making comparisons between redistribution of wealth and other forms of “redistribution” that obviously would be tantamount to theft and slavery, and asking “What’s the difference?” when in fact the difference is glaringly obvious to everyone but him. He is also fond of saying that “inequality between households within a nation” is a small portion of inequality, and then wondering aloud why we make such a big deal out of it. The answer here is also quite obvious: First of all, it’s not that small a portion of inequality—it’s a third of global income inequality by most measures, it’s increasing while across-nation inequality is decreasing, and the absolute magnitude of within-nation inequality is staggering: there are households with incomes over one million times that of other households within the same nation. (Where are the people who have had sex one hundred billion times, let alone the ones who had sex forty billion times in one year? Because here’s the man who has one hundred billion dollars and made almost $40 billion in one year.) Second, within-nation inequality is extremely simple to fix by public policy; just change a few numbers in the tax code—in fact, just change them back to what they were in the 1950s. Cross-national inequality is much more complicated (though I believe it can be solved, eventually) and some forms of what he’s calling “inequality” (like “inequality across periods of human history” or “inequality of innate talent”) don’t seem amenable to correction under any conceivable circumstances.

Hanson has lots of just-so stories about the evolutionary psychology of why “we don’t care” about cross-national inequality (gee, I thought maybe devoting my career to it was a pretty good signal otherwise?) or inequality in access to sex (which is thousands of times smaller than income inequality), but no clear policy suggestions for how these other forms of inequality could be in any way addressed. This whole idea of “redistribution of sex”; what does that mean, exactly? Legalized or even subsidized prostitution or sex robots would be one thing; I can see pros and cons there at least. But without clarification, it sounds like he’s endorsing the most extremist misogynist incels who think that women should be rightfully compelled to have sex with sexually frustrated men—which would be quite literally state-sanctioned rape. I think really Hanson isn’t all that interested in incels, and just wants to make fun of silly “socialists” who would dare suppose that maybe Jeff Bezos doesn’t need his 120 billion dollars as badly as some of the starving children in Africa could benefit from them, or that maybe having a tax system similar to Sweden or Denmark (which consistently rate as some of the happiest, most prosperous nations on Earth) sounds like a good idea. He takes things that are obviously much worse than redistributive taxation, and compares them to redistributive taxation to make taxation seem worse than it is.

No, I do not support “redistribution of sex”. I might be able to support legalized prostitution, but I’m concerned about the empirical data suggesting that legalized prostitution correlates with increased human sex trafficking. I think I would also support legalized sex robots, but for reasons that will become clear shortly, I strongly suspect they would do little to solve the problem, even if they weren’t ridiculously expensive. Beyond that, I’ve said enough about Hanson; Lawyers, Guns & Money nicely skewers Hanson’s argument, so I’ll not bother with it any further.
Instead, I want to talk about the average incel, one of hundreds of thousands if not millions of men who feels cast aside by society because he is socially awkward and can’t get laid. I want to talk about him because I used to be very much like him (though I never specifically identified as “incel”), and I want to talk about him because I think that he is genuinely suffering and needs help.

There is a moderate wing of the incel community, just as there is a moderate wing of the Muslim community. The moderate wing of incels is represented by sites like Love-Shy.com that try to reach out to people (mostly, but not exclusively young heterosexual men) who are lonely and sexually frustrated and often suffering from social anxiety or other mood disorders. Though they can be casually sexist (particularly when it comes to stereotypes about differences between men and women), they are not virulently misogynistic and they would never support violence. Moreover, they provide a valuable service in offering social support to men who otherwise feel ostracized by society. I disagree with a lot of things these groups say, but they are providing valuable benefits to their members and aren’t hurting anyone else. Taking out your anger against incel terrorists on Love-Shy.com is like painting graffiti on a mosque in response to 9/11 (which, of course, people did).

To some extent, I can even understand the more misogynistic (but still non-violent) wings of the incel community. I don’t want to defend their misogyny, but I can sort of understand where it might come from.

You see, men in our society (and most societies) are taught from a very young age that their moral worth as human beings is based primarily on one thing in particular: Sexual prowess. If you are having a lot of sex with a lot of women, you are a good and worthy man. If you are not, you are broken and defective. (Donald Trump has clearly internalized this narrative quite thoroughly—as have a shockingly large number of his supporters.)

This narrative is so strong and so universal, in fact, that I wouldn’t be surprised if it has a genetic component. It actually makes sense as a matter of evolutionary psychology than males would evolve to think this way; in an evolutionary sense it’s true that a male’s ultimate worth—that is, fitness, the one thing natural selection cares about—is defined by mating with a maximal number of females. But even if it has a genetic component, there is enough variation in this belief that I am confident that social norms can exaggerate or suppress it. One thing I can’t stand about popular accounts of evolutionary psychology is how they leap from “plausible evolutionary account” to “obviously genetic trait” all the way to “therefore impossible to change or compensate for”. My myopia and astigmatism are absolutely genetic; we can point to some of the specific genes. And yet my glasses compensate for them perfectly, and for a bit more money I could instead get LASIK surgery that would correct them permanently. Never think for a moment that “genetic” implies “immutable”.

Because of this powerful narrative, men who are sexually frustrated get treated like garbage by other men and even women. They feel ostracized and degraded. Often, they even feel worthless. If your worth as a human being is defined by how many women you have sex with, and you aren’t having sex with any, it follows that your worth is zero. No wonder, then, that so many become overcome with despair.
The incel community provides an opportunity to escape that despair. If you are told that you are not defective, but instead there is something wrong with society that keeps you down, you no longer have to feel worthless. It’s not that you don’t deserve to have sex, it’s that you’ve been denied what you deserve. When the only other narrative you’ve been given is that you are broken and worthless, I can see why “society is screwing you over” is an appealing counter-narrative. Indeed, it’s not even that far off from the truth.

The moderate wing of the incel community even offers some constructive solutions: They offer support to help men improve themselves, overcome their own social anxiety, and ultimately build fulfilling sexual relationships.

The extremist wing gets this all wrong: Instead of blaming the narrative that sex equals worth, they blame women—often, all women—for somehow colluding to deny them access to the sex they so justly deserve. They often link themselves to the “pick-up artist” community who try to manipulate women into having sex.

And then in the most extreme cases, they may even decide to turn their anger into violence.

But really I don’t think most of these men actually want sex at all, which is part of why I don’t think sex robots would be particularly effective.

Rather, to clarify: They want sex, as most of us do—but that’s not what they need. A simple lack of sex can be compensated reasonably well by pornography and masturbation. (Let me state this outright: Pornography and masturbation are fundamental human rights. Porn is free speech, and masturbation is part of the fundamental right of bodily autonomy. The fact that increased access to porn reduces incidence of sexual assault is nice, but secondary; porn is freedom.) Obviously it would be more satisfying to have a real sexual relationship, but with such substitutes available, a mere lack of sex does not cause suffering.

The need that these men are feeling is companionship. It is love. It is understanding. These are things that can’t be replaced, even partially, by sex robots or Internet porn.

Why do they conflate the two? Again, because society has taught them to do so. This one is clearly cultural, as it varies quite considerably between nations; it’s not nearly as bad in Southern Europe for example.
In American society (and many, but not all others), men are taught three things: First, expression of any emotion except for possibly anger, and especially expression of affection, is inherently erotic. Second, emotional vulnerability jeopardizes masculinity. Third, erotic expression must be only between men and women in a heterosexual relationship.

In principle, it might be enough to simply drop the third proposition: This is essentially what happens in the LGBT community. Gay men still generally suffer from the suspicion that all emotional expression is erotic, but have long-since abandoned their fears of expressing eroticism with other men. Often they’ve also given up on trying to sustain norms of masculinity as well. So gay men can hug each other and cry in front of each other, for example, without breaking norms within the LGBT community; the sexual subtext is often still there, but it’s considered unproblematic. (Gay men typically aren’t even as concerned about sexual infidelity as straight men; over 40% of gay couples are to some degree polyamorous, compared to 5% of straight couples.) It may also be seen as a loss of masculinity, but this too is considered unproblematic in most cases. There is a notable exception, which is the substantial segment of gay men who pride themselves upon hypermasculinity (generally abbreviated “masc”); and indeed, within that subcommunity you often see a lot of the same toxic masculinity norms that are found in the society as large.

That is also what happened in Classical Greece and Rome, I think: These societies were certainly virulently misogynistic in their own way, but their willingness to accept erotic expression between men opened them to accepting certain kinds of emotional expression between men as well, as long as it was not perceived as a threat to masculinity per se.

But when all three of those norms are in place, men find that the only emotional outlet they are even permitted to have while remaining within socially normative masculinity is a woman who is a romantic partner. Family members are allowed certain minimal types of affection—you can hug your mom, as long as you don’t seem too eager—but there is only one person in the world that you are allowed to express genuine emotional vulnerability toward, and that is your girlfriend. If you don’t have one? Get one. If you can’t get one? Well, sorry, pal, you’re just out of luck. Deal with it, or you’re not a real man.

But really what I’d like to get rid of is the first two propositions: Emotional expression should not be considered inherently sexual. Expressing emotional vulnerability should not be taken as a capitulation of your masculinity—and if I really had my druthers, the whole idea of “masculinity” would disappear or become irrelevant. This is the way that society is actually holding incels down: Not by denying them access to sex—the right to refuse sex is also a fundamental human right—but by denying them access to emotional expression and treating them like garbage because they are unable to have sex.

My sense is that what most incels are really feeling is not a dearth of sexual expression; it’s a dearth of emotional expression. But precisely because social norms have forced them into getting the two from the same place, they have conflated them. Further evidence in favor of this proposition? A substantial proportion of men who hire prostitutes spend a lot of the time they paid for simply talking.

I think what most of these men really need is psychotherapy. I’m not saying that to disparage them; I myself am a regular consumer of psychotherapy, which is one of the most cost-effective medical interventions known to humanity. I feel a need to clarify this because there is so much stigma on mental illness that saying someone is mentally ill and needs therapy can be taken as an insult; but I literally mean that a lot of these men are mentally ill and need therapy. Many of them exhibit significant signs of social anxiety, depression, or bipolar disorder.

Even for those who aren’t outright mentally ill, psychotherapy might be able to help them sort out some of these toxic narratives they’ve been fed by society, get them to think a little more carefully about what it means to be a good man and whether the “man” part is even so important. A good therapist could tease out the fabric of their tangled cognition and point out that when they say they want sex, it really sounds like they want self-worth, and when they say they want a girlfriend it really sounds like they want someone to talk to.

Such a solution won’t work on everyone, and it won’t work overnight on anyone. But the incel community did not emerge from a vacuum; it was catalyzed by a great deal of genuine suffering. Remove some of that suffering, and we might just undermine the most dangerous parts of the incel community and prevent at least some future violence.

No one owes sex to anyone. But maybe we do, as a society, owe these men a little more sympathy?

Did the World Bank modify its ratings to manipulate the outcome of an election in Chile?

Jan 21 JDN 2458140

(By the way, my birthday is January 19. I can’t believe I’m turning 30.)

This is a fairly obscure news item, so you may have missed it. It should be bigger news than it is.
I can’t fault the New York Times for having its front page focus mainly on the false missile alert that was issued to some people in Hawaii; a false alarm of nuclear attack definitely is the most important thing that could be going on in the world, short of course of actual nuclear war.

CNN, on the other hand, is focused entirely on Trump. When I first wrote this post, they were also focused on Trump, mainly interested in asking whether Trump’s comments about “immigrants from shithole countries” was racist. My answer: Yes, but not because he said the countries were “shitholes”. That was crude, yes, but not altogether inaccurate. Countries like Syria, Afghanistan, and Sudan are, by any objective measure, terrible places. His comments were racist because they attributed that awfulness to the people leaving these countries. But in fact we have a word for immigrants who flee terrible places seeking help and shelter elsewhere: Refugees. We call those people refugees. There are over 10 million refugees in the world today, most of them from Syria.

So anyway, here’s the news item you should have heard about but probably didn’t: The Chief Economist of the World Bank (Paul Romer, who coincidentally I mentioned in my post about DSGE models) has opened an investigation into the possibility that the World Bank’s ratings of economic freedom were intentionally manipulated in order to tilt a Presidential election in Chile.

The worst part is, it may have worked: Chile’s “Doing Business” rating consistently fell under President Michelle Bachelet and rose under President Sebastian Piñera, and Piñera won the most recent election. Was that the reason he won? Who knows? I’m still not entirely clear on how we ended up with President Trump. But it very likely contributed.

The World Bank is supposed to be an impartial institution representing the interests of global economic development. I’m not naive; I recognize that no human institution is perfect, and there will always be competing political and economic interests within any complex institution. Development economists are subject to cognitive biases just like anyone else. If this was the work of a handful of economic analysts (or if Romer turns out to be wrong and the changes in statistical methodology were totally reasonable), so be it; let’s make sure that the bias is corrected and the analysts involved are punished.

But I fear that the rot may run deeper than this. The World Bank is effectively a form of unelected international government. It has been accused of inherent pro-capitalist (or even racist) bias due to the fact that Western governments are overrepresented in its governance, but I actually consider that accusation unfair: There are very good reasons to make sure that your international institutions are managed by liberal democracies, and turns out that most of the world’s liberal democracies are Western. The fact that the US, France, Germany, and the UK make most of the decisions is entirely sensible: Those are in fact the countries we should want making global decisions.

China is not underrepresented, because China is not a democracy and doesn’t deserve to be represented. They are already more represented in the World Bank than they should be, because representing the PRC is not actually representing the interests of the people of China. Russia and Saudi Arabia are undeniably overrepresented. India is underrepresented; they should be complaining. Some African democracies, such as Namibia and Botswana, would also have a legitimate claim to underrepresentation. But I don’t lose any sleep over the fact that Zimbabwe and Iran aren’t getting votes in the World Bank. If and when those countries actually start representing their people, then we can talk about giving them representation in world government. I don’t see how refusing to give international authority to dictators and theocrats constitutes racism or pro-capitalist bias.

That said, there are other reasons to think that the World Bank might actually have some sort of pro-capitalist bias. The World Bank was instrumental in forming the Washington Consensus, which opened free trade and increase economic growth worldwide, but also exposed many poor countries to risk from deregulated financial markets and undermined social safety nets through fiscal austerity programs. They weren’t wrong to want more free trade, and many of their reforms did make sense; but they were at best wildly overconfident in their policy prescriptions, and at worst willing to sacrifice people in poor countries at the altar of bank profits. World poverty has in fact fallen by about half since 1990, and the World Bank has a lot to do with that. But things may have gone faster and smoother if they hadn’t insisted on removing so many financial regulations so quickly without clear forecasts of what would happen. I don’t share Jason Hickel’s pessimistic view that the World Bank’s failures were intentional acts toward an ulterior agenda, but I can see how it begins to look that way when they keep failing the same ways over and over again. (I instead invoke Hanlon’s razor: “Never attribute to malice that which is adequately explained by stupidity.”)

There are also reports of people facing retaliation for criticizing World Bank projects, including those within the World Bank who raise ethical concerns. If this was politically-motivated data manipulation, there may have been people who saw it happening, but were afraid to say anything for fear of being fired or worse.

And Chile in particular has reason to be suspicious. The World Bank suddenly started giving loans to Chile when Augusto Pinochet took power (the CIA denies supporting the coup, by the way—though, given the source, I can understand why one would take that with a grain of salt), and did so under the explicit reasoning that an authoritarian capitalist regime was somehow “more trustworthy” than a democratic socialist regime. Even in the narrow sense of financial creditworthiness that seems difficult to defend; the World Bank knew almost nothing about what kind of government Pinochet was going to create, and in fact despite the so-called “Miracle of Chile”, rapid economic growth in Chile didn’t really happen until the 1990s, after Chile became a democratic capitalist regime.

What I’m really getting at here is that the World Bank has a lot to answer for. I am prepared to believe that most of these actions were honest mistakes or ideological blinders, rather than corruption or cruelty; but even so, when millions of lives are at stake, even honest mistakes aren’t so forgivable. They should be looking for ways to improve their internal governance to make sure that mistakes are caught and corrected quickly. They should be constantly vigilant for biases—either intentional or otherwise—that might seep into their research. Error should be met with immediate correction and public apology; malfeasance should be met with severe punishment.

Perhaps Romer’s investigation actually signals a shift toward such a policy. If so, this is a very good thing. If only we had done this, say, thirty years ago.

What exactly is “gentrification”? How should we deal with it?

Nov 26, JDN 2458083

“Gentrification” is a word that is used in a variety of mutually-inconsistent ways. If you compare the way social scientists use it to the way journalists use it, for example, they are almost completely orthogonal.

The word “gentrification” is meant to invoke the concept of a feudal gentry—a hereditary landed class that extracts rents from the rest of the population while contributing little or nothing themselves.

If indeed that is what we are talking about, then obviously this is bad. Moreover, it’s not an entirely unfounded fear; there are some remarkably strong vestiges of feudalism in the developed world, even in the United States where we never formally had a tradition of feudal titles. There really is a significant portion of the world’s wealth held by a handful of billionaire landowner families.

But usually when people say “gentrification” they mean something much broader. Almost any kind of increase in urban real estate prices gets characterized as “gentrification” by at least somebody, and herein lies the problem.

In fact, the kind of change that is most likely to get characterized as “gentrification” isn’t even the rising real estate prices we should be most worried about. People aren’t concerned when the prices of suburban homes double in 20 years. You might think that things that are already too expensive getting more expensive would be the main concern, but on the contrary, people are most likely to cry “gentrification” when housing prices rise in poor areas where housing is cheap.

One of the most common fears about gentrification is that it will displace local residents. In fact, the best quasi-experimental studies show little or no displacement effect. It’s actually mainly middle-class urbanites who get displaced by rising rents. Poor people typically own their homes, and actually benefit from rising housing prices. Young upwardly-mobile middle-class people move to cities to rent apartments near where they work, and tend to assume that’s how everyone lives, but it’s not. Rising rents in a city are far more likely to push out its grad students than they are poor families that have lived there for generations. Part of why displacement does not occur may be because of policies specifically implemented to fight it, such as subsidized housing and rent control. If that’s so, let’s keep on subsidizing housing (though rent control will always be a bad idea).

Nor is gentrification actually a very widespread phenomenon. The majority of poor neighborhoods remain poor indefinitely. In most studies, only about 30% of neighborhoods classified as “gentrifiable” actually end up “gentrifying”. Less than 10% of the neighborhoods that had high poverty rates in 1970 had low poverty rates in 2010.

Most people think gentrification reduces crime, but in the short run the opposite is the case. Robbery and larceny are higher in gentrifying neighborhoods. Criminals are already there, and suddenly they get much more valuable targets to steal from, so they do.

There is also a general perception that gentrification involves White people pushing Black people out, but this is also an overly simplistic view. First of all, a lot of gentrification is led by upwardly-mobile Black and Latino people. Black people who live in gentrified neighborhoods seem to be better off than Black people who live in non-gentrified neighborhoods; though selection bias may contribute to this effect, it can’t be all that strong, or we’d observe a much stronger displacement effect. Moreover, some studies have found that gentrification actually tends to increase the racial diversity of neighborhoods, and may actually help fight urban self-segregation, though it does also tend to increase racial polarization by forcing racial mixing.

What should we conclude from all this? I think the right conclusion is we are asking the wrong question.

Rising housing prices in poor areas aren’t inherently good or inherently bad, and policies designed specifically to increase or decrease housing prices are likely to have harmful side effects. What we need to be focusing on is not houses or neighborhoods but people. Poverty is definitely a problem, for sure. Therefore we should be fighting poverty, not “gentrification”. Directly transfer wealth from the rich to the poor, and then let the housing market fall where it may.

There is still some role for government in urban planning more generally, regarding things like disaster preparedness, infrastructure development, and transit systems. It may even be worthwhile to design regulations or incentives that directly combat racial segregation at the neighborhood level, for, as the Schelling Segregation Model shows, it doesn’t take a large amount of discriminatory preference to have a large impact on socioeconomic outcomes. But don’t waste effort fighting “gentrification”; directly design policies that will incentivize desegregation.

Rising rent as a proportion of housing prices is still bad, and the fundamental distortions in our mortgage system that prevent people from buying houses are a huge problem. But rising housing prices are most likely to be harmful in rich neighborhoods, where housing is already overpriced; in poor neighborhoods where housing is cheap, rising prices might well be a good thing.
In fact, I have a proposal to rapidly raise homeownership across the United States, which is almost guaranteed to work, directly corrects an enormous distortion in financial markets, and would cost about as much as the mortgage interest deduction (which should probably be eliminated, as most economists agree). Give each US adult a one-time grant voucher which gives them $40,000 that can only be spent as a down payment on purchasing a home. Each time someone turns 18, they get a voucher. You only get one over your lifetime, so use it wisely (otherwise the policy could become extremely expensive); but this is an immediate direct transfer of wealth that also reduces your credit constraint. I know I for one would be house-hunting right now if I were offered such a voucher. The mortgage interest deduction means nothing to me, because I can’t afford a down payment. Where the mortgage interest deduction is regressive, benefiting the rich more than the poor, this policy gives everyone the same amount, like a basic income.

In the short run, this policy would probably be expensive, as we’d have to pay out a large number of vouchers at once; but with our current long-run demographic trends, the amortized cost is basically the same as the mortgage interest deduction. And the US government especially should care about the long-run amortized cost, as it is an institution that has lasted over 200 years without ever missing a payment and can currently borrow at negative real interest rates.

A tale of two storms

Sep 24, JDN 2458021

There were two severe storm events this past week; one you probably heard a great deal about, the other, probably not. The first was Hurricane Irma, which hit the United States and did most of its damage in Florida; the second was Typhoon Doksuri, which hit Southeast Asia and did most of its damage in Vietnam.

You might expect that this post is going to give you more bad news. Well, I have a surprise for you: The news is actually mostly good.

The death tolls from both storms were astonishingly small. The hurricane is estimated to have killed at least 84 people, while the typhoon has killed at least 26. This result is nothing less than heroism. The valiant efforts of thousands of meteorologists and emergency responders around the world has saved thousands of lives, and did so both in the wealthy United States and in impoverished Vietnam.

When I started this post, I had expected to see that the emergency response in Vietnam would be much worse, and fatalities would be far higher; I am delighted to report that nothing of the sort was the case, and Vietnam, despite their per-capita GDP PPP of under $6,000, has made emergency response a sufficiently high priority that they saved their people just about as well as Florida did.

To get a sense of what might have happened without them, consider that 1.5 million homes in Florida were leveled by the hurricane, and over 100,000 homes were damaged by the typhoon. Vietnam is a country of 94 million people. Florida has a population of 20 million. (The reason Florida determines so many elections is that it is by far the most populous swing state.) Without weather forecasting and emergency response, these death figures would have been in the tens of thousands, not the dozens.

Indeed, if you know statistics and demographics well, these figures become even more astonishing: These death rates were almost indistinguishable from statistical noise.

Vietnam’s baseline death rate is about 5.9 per 1,000, meaning that they experience about 560,000 deaths in any given year. This means that over 1500 people die in Vietnam on a normal day.

Florida’s baseline death rate is about 6.6 per 1,000, actually a bit higher than Vietnam’s, because Florida’s population skews so much toward the elderly. Therefore Florida experiences about 130,000 deaths per year, or 360 deaths on a normal day.

In both Vietnam and Florida, this makes the daily death probability for any given person about 0.0017%. A random process with a fixed probability of 0.0017% over a population of n people will result in an average of 0.0017n events, but with some variation around that number. The standard deviation is actually sqrt(p(1-p)n) = 0.004 sqrt(n). When n = 20,000,000 (Florida), this results in a standard deviation of 18. When n = 94,000,000 (Vietnam), this results in a standard deviation of 40.

This means that the 26 additional deaths in Vietnam were within one standard deviation of average! They basically are indistinguishable from statistical noise. There have been over a hundred days in Vietnam where an extra 26 people happened to die, just in the past year. Weather forecasting took what could have been a historic disaster and turned it into just another bad day.

The 84 additional deaths in Florida are over four standard deviations away from average, so they are definitely distinguishable from statistical noise—but this still means that Florida’s total death rate for the year will only tick up by 0.6%.

It is common in such tragedies to point out in grave tones that “one death is too many”, but I maintain that this is not actually moral wisdom but empty platitude. No conceivable policy is ever going to reduce death rates to zero, and the people who died of heart attacks or brain aneurysms are every bit as dead as the people who died from hurricanes or terrorist attacks. Instead of focusing on the handful of people who died because they didn’t heed warnings or simply got extraordinarily unlucky, I think we should be focusing on the thousands of people who survived because our weather forecasters and emergency responders did their jobs so exceptionally well. Of course if we can reduce the numbers even further, we should; but from where I’m sitting, our emergency response system has a lot to be proud of.

Of course, the economic damage of the storms was substantially greater. The losses in destroyed housing and infrastructure in Florida are projected at over $80 billion. Vietnam is much poorer, so there simply isn’t as much infrastructure to destroy; total damage is unlikely to exceed $10 billion. Florida’s GDP is $926 billion, so they are losing 8.6%; while Vietnam’s GDP is $220 billion, so they are still losing 4.5%. And of course the damage isn’t evenly spread across everyone; those hardest hit will lose perhaps their entire net wealth, while others will feel absolutely nothing.

But economic damage is fleeting. Indeed, if we spend the government money we should be, and take the opportunity to rebuild this infrastructure better than it was before, the long-run economic impact could be positive. Even 8.6% of GDP is less than five years of normal economic growth—and there were years in the 1950s where we did it in a single year. The 4.6% that Vietnam lost, they should make back within a year of their current economic growth.

Thank goodness.

What we lose by aggregating

Jun 25, JDN 2457930

One of the central premises of current neoclassical macroeconomics is the representative agent: Rather than trying to keep track of all the thousands of firms, millions of people, and billions of goods and in a national economy, we aggregate everything up into a single worker/consumer and a single firm producing and consuming a single commodity.

This sometimes goes under the baffling misnomer of microfoundations, which would seem to suggest that it carries detailed information about the microeconomic behavior underlying it; in fact what this means is that the large-scale behavior is determined by some sort of (perfectly) rational optimization process as if there were just one person running the entire economy optimally.

First of all, let me say that some degree of aggregation is obviously necessary. Literally keeping track of every single transaction by every single person in an entire economy would require absurd amounts of data and calculation. We might have enough computing power to theoretically try this nowadays, but then again we might not—and in any case such a model would very rapidly lose sight of the forest for the trees.

But it is also clearly possible to aggregate too much, and most economists don’t seem to appreciate this. They cite a couple of famous theorems (like the Gorman Aggregation Theorem) involving perfectly-competitive firms and perfectly-rational identical consumers that offer a thin veneer of justification for aggregating everything into one, and then go on with their work as if this meant everything were fine.

What’s wrong with such an approach?

Well, first of all, a representative agent model can’t talk about inequality at all. It’s not even that a representative agent model says inequality is good, or not a problem; it lacks the capacity to even formulate the concept. Trying to talk about income or wealth inequality in a representative agent model would be like trying to decide whether your left hand is richer than your right hand.

It’s also nearly impossible to talk about poverty in a representative agent model; the best you can do is talk about a country’s overall level of development, and assume (not without reason) that a country with a per-capita GDP of $1,000 probably has a lot more poverty than a country with a per-capita GDP of $50,000. But two countries with the same per-capita GDP can have very different poverty rates—and indeed, the cynic in me wonders if the reason we’re reluctant to use inequality-adjusted measures of development is precisely that many American economists fear where this might put the US in the rankings. The Human Development Index was a step in the right direction because it includes things other than money (and as a result Saudi Arabia looks much worse and Cuba much better), but it still aggregates and averages everything, so as long as your rich people are doing well enough they can compensate for how badly your poor people are doing.

Nor can you talk about oligopoly in a representative agent model, as there is always only one firm, which for some reason chooses to act as if it were facing competition instead of rationally behaving as a monopoly. (This is not quite as nonsensical as it sounds, as the aggregation actually does kind of work if there truly are so many firms that they are all forced down to zero profit by fierce competition—but then again, what market is actually like that?) There is no market share, no market power; all are at the mercy of the One True Price.

You can still talk about externalities, sort of; but in order to do so you have to set up this weird doublethink phenomenon where the representative consumer keeps polluting their backyard and then can’t figure out why their backyard is so darn polluted. (I suppose humans do seem to behave like that sometimes; but wait, I thought you believed people were rational?) I think this probably confuses many an undergrad, in fact; the models we teach them about externalities generally use this baffling assumption that people consider one set of costs when making their decisions and then bear a different set of costs from the outcome. If you can conceptualize the idea that we’re aggregating across people and thinking “as if” there were a representative agent, you can ultimately make sense of this; but I think a lot of students get really confused by it.

Indeed, what can you talk about with a representative agent model? Economic growth and business cycles. That’s… about it. These are not minor issues, of course; indeed, as Robert Lucas famously said:

The consequences for human welfare involved in questions like these [on economic growth] are simply staggering: once one starts to think about them, it is hard to think about anything else.

I certainly do think that studying economic growth and business cycles should be among the top priorities of macroeconomics. But then, I also think that poverty and inequality should be among the top priorities, and they haven’t been—perhaps because the obsession with representative agent models make that basically impossible.

I want to be constructive here; I appreciate that aggregating makes things much easier. So what could we do to include some heterogeneity without too much cost in complexity?

Here’s one: How about we have p firms, making q types of goods, sold to n consumers? If you want you can start by setting all these numbers equal to 2; simply going from 1 to 2 has an enormous effect, as it allows you to at least say something about inequality. Getting them as high as 100 or even 1000 still shouldn’t be a problem for computing the model on an ordinary laptop. (There are “econophysicists” who like to use these sorts of agent-based models, but so far very few economists take them seriously. Partly that is justified by their lack of foundational knowledge in economics—the arrogance of physicists taking on a new field is legendary—but partly it is also interdepartmental turf war, as economists don’t like the idea of physicists treading on their sacred ground.) One thing that really baffles me about this is that economists routinely use computers to solve models that can’t be calculated by hand, but it never seems to occur to them that they could have started at the beginning planning to make the model solvable only by computer, and that would spare them from making the sort of heroic assumptions they are accustomed to making—assumptions that only made sense when they were used to make a model solvable that otherwise wouldn’t be.

You could also assign a probability distribution over incomes; that can get messy quickly, but we actually are fortunate that the constant relative risk aversion utility function and the Pareto distribution over incomes seem to fit the data quite well—as the product of those two things is integrable by hand. As long as you can model how your policy affects this distribution without making that integral impossible (which is surprisingly tricky), you can aggregate over utility instead of over income, which is a lot more reasonable as a measure of welfare.

And really I’m only scratching the surface here. There are a vast array of possible new approaches that would allow us to extend macroeconomic models to cover heterogeneity; the real problem is an apparent lack of will in the community to make such an attempt. Most economists still seem very happy with representative agent models, and reluctant to consider anything else—often arguing, in fact, that anything else would make the model less microfounded when plainly the opposite is the case.