How not to do financial transaction tax

JDN 2457520

I strongly support the implementation of a financial transaction tax; like a basic income, it’s one of those economic policy ideas that are so brilliantly simple it’s honestly a little hard to believe how incredibly effective they are at making the world a better place. You mean we might be able to end stock market crashes just by implementing this little tax that most people will never even notice, and it will raise enough revenue to pay for food stamps? Yes, a financial transaction tax is that good.

So, keep that in mind when I say this:

TruthOut’s proposal for a financial transaction tax is somewhere between completely economically illiterate and outright insane.

They propose a 10% transaction tax on stocks and a 1% transaction tax on notional value of derivatives, then offer a “compromise” of 5% on stocks and 0.5% on derivatives. They make a bunch of revenue projections based on these that clearly amount to nothing but multiplying the current amount of transactions by the tax rate, which is so completely wrong we now officially have a left-wing counterpart to trickle-down voodoo economics.

Their argument is basically like this (I’m paraphrasing): “If we have to pay 5% sales tax on groceries, why shouldn’t you have to pay 5% on stocks?”

But that’s not how any of this works.

Demand for most groceries is very inelastic, especially in the aggregate. While you might change which groceries you’ll buy depending on their respective prices, and you may buy in bulk or wait for sales, over a reasonably long period (say a year) across a large population (say all of Michigan or all of the US), total amount of spending on groceries is extremely stable. People only need a certain amount of food, and they generally buy that amount and then stop.

So, if you implement a 5% sales tax that applies to groceries (actually sales tax in most states doesn’t apply to most groceries, but honestly it probably should—offset the regressiveness by providing more social services), people would just… spend about 5% more on groceries. Probably a bit less than that, actually, since suppliers would absorb some of the tax; but demand is much less elastic for groceries than supply, so buyers would bear most of the incidence of the tax. (It does not matter how the tax is collected; see my tax incidence series for further explanation of why.)

Other goods like clothing and electronics are a bit more elastic, so you’d get some deadweight loss from the sales tax; but at a typical 5% to 10% in the US this is pretty minimal, and even the hefty 20% or 30% VATs in some European countries only have a moderate effect. (Denmark’s 180% sales tax on cars seems a bit excessive to me, but it is Pigovian to disincentivize driving, so it also has very little deadweight loss.)

But what would happen if you implemented a 5% transaction tax on stocks? The entire stock market would immediately collapse.

A typical return on stocks is between 5% and 15% per year. As a rule of thumb, let’s say about 10%.

If you pay 5% sales tax and trade once per year, tax just cut your return in half.

If you pay 5% sales tax and trade twice per year, tax destroyed your return completely.

Even if you only trade once every five years, a 5% sales tax means that instead of your stocks being worth 61% more after those 5 years they are only worth 53% more. Your annual return has been reduced from 10% to 8.9%.

But in fact there are many perfectly legitimate reasons to trade as often as monthly, and a 5% tax would make monthly trading completely unviable.

Even if you could somehow stop everyone from pulling out all their money just before the tax takes effect, you would still completely dry up the stock market as a source of funding for all but the most long-term projects. Corporations would either need to finance their entire operations out of cash or bonds, or collapse and trigger a global depression.

Derivatives are even more extreme. The notional value of derivatives is often ludicrously huge; we currently have over a quadrillion dollars in notional value of outstanding derivatives. Assume that say 10% of those are traded every year, and we’re talking $100 trillion in notional value of transactions. At 0.5% you’re trying to take in a tax of $500 billion. That sounds fantastic—so much money!—but in fact what you should be thinking about is that’s a really strong avoidance incentive. You don’t think banks will find a way to restructure their trading practices—or stop trading altogether—to avoid this tax?

Honestly, maybe a total end to derivatives trading would be tolerable. I certainly think we need to dramatically reduce the amount of derivatives trading, and much of what is being traded—credit default swaps, collateralized debt obligations, synthetic collateralized debt obligations, etc.—really should not exist and serves no real function except to obscure fraud and speculation. (Credit default swaps are basically insurance you can buy on other people’s companies. There’s a reason you’re not allowed to buy insurance on other people’s stuff!) Interest rate swaps aren’t terrible (when they’re not being used to perpetrate the largest white-collar crime in history), but they also aren’t necessary. You might be able to convince me that commodity futures and stock options are genuinely useful, though even these are clearly overrated. (Fun fact: Futures markets have been causing financial crises since at least Classical Rome.) Exchange-traded funds are technically derivatives, and they’re just fine (actually ETFs are very low-risk, because they are inherently diversified—which is why you should probably be buying them); but actually their returns are more like stocks, so the 0.5% might not be insanely high in that case.

But stocks? We kind of need those. Equity financing has been the foundation of capitalism since the very beginning. Maybe we could conceivably go to a fully debt-financed system, but it would be a radical overhaul of our entire financial system and is certainly not something to be done lightly.

Indeed, TruthOut even seems to think we could apply the same sales tax rate to bonds, which means that debt financing would also collapse, and now we’re definitely talking about global depression. How exactly is anyone supposed to finance new investments, if they can’t sell stock or bonds? And a 5% tax on the face value of stock or bonds, for all practical purposes, is saying that you can’t sell stock or bonds. It would make no one want to buy them.

Wealthy investors buying of stocks and bonds is essentially no different than average folks buying food, clothing or other real “goods and services.”

Yes it is. It is fundamentally different.

People buy goods to use them. People buy stocks to make money selling them.

This seems perfectly obvious, but it is a vital distinction that seems to be lost on TruthOut.

When you buy an apple or a shoe or a phone or a car, you care how much it costs relative to how useful it is to you; if we make it a bit more expensive, that will make you a bit less likely to buy it—but probably not even one-to-one so that a 5% tax would reduce purchases by 5%; it would probably be more like a 2% reduction. Demand for goods is inelastic. Taxing them will raise a lot of revenue and not reduce the quantity purchased very much.

But when you buy a stock or a bond or an interest rate swap, you care how much it costs relative to what you will be able to sell it for—you care about not its utility but its return. So a 5% tax will reduce the amount of buying and selling by substantially more than 5%—it could well be 50% or even 100%. Demand for financial assets is elastic. Taxing them will not raise much revenue but will substantially reduce the quantity purchased.

Now, for some financial assets, we want to reduce the quantity purchased—the derivatives market is clearly too big, and high-frequency trading that trades thousands of times per second can do nothing but destabilize the financial system. Joseph Stiglitz supports a small financial transaction tax precisely because it would substantially reduce high-frequency trading, and he’s a Nobel Laureate as you may recall. Naturally, he was excluded from the SEC hearings on the subject, because reasons. But the figures Stiglitz is talking about (and I agree with) are on the order of 0.1% for stocks and 0.01% for derivatives—50 times smaller than what TruthOut is advocating.

At the end, they offer another “compromise”:

Okay, half it again, to a 2.5 percent tax on stocks and bonds and a 0.25 percent on derivative trades. That certainly won’t discourage stock and bond trading by the rich (not that that is an all bad idea either).

Yes it will. By a lot. That’s the whole point.

A financial transaction tax is a great idea whose time has come; let’s not ruin its reputation by setting it at a preposterous value. Just as a $15 minimum wage is probably a good idea but a $250 minimum wage is definitely a terrible idea, a 0.1% financial transaction tax could be very beneficial but a 5% financial transaction tax would clearly be disastrous.

Is Equal Unfair?

JDN 2457492

Much as you are officially a professional when people start paying you for what you do, I think you are officially a book reviewer when people start sending you books for free asking you to review them for publicity. This has now happened to me, with the book Equal Is Unfair by Don Watkins and Yaron Brook. This post is longer than usual, but in order to be fair to the book’s virtues as well as its flaws, I felt a need to explain quite thoroughly.

It’s a very frustrating book, because at times I find myself agreeing quite strongly with the first part of a paragraph, and then reaching the end of that same paragraph and wanting to press my forehead firmly into the desk in front of me. It makes some really good points, and for the most part uses economic statistics reasonably accurately—but then it rides gleefully down a slippery slope fallacy like a waterslide. But I guess that’s what I should have expected; it’s by leaders of the Ayn Rand Institute, and my experience with reading Ayn Rand is similar to that of Randall Monroe (I’m mainly referring to the alt-text, which uses slightly foul language).

As I kept being jostled between “That’s a very good point.”, “Hmm, that’s an interesting perspective.”, and “How can anyone as educated as you believe anything that stupid!?” I realized that there are actually three books here, interleaved:

1. A decent economics text on the downsides of taxation and regulation and the great success of technology and capitalism at raising the standard of living in the United States, which could have been written by just about any mainstream centrist neoclassical economist—I’d say it reads most like John Taylor or Ken Galbraith. My reactions to this book were things like “That’s a very good point.”, and “Sure, but any economist would agree with that.”

2. An interesting philosophical treatise on the meanings of “equality” and “opportunity” and their application to normative economic policy, as well as about the limitations of statistical data in making political and ethical judgments. It could have been written by Robert Nozick (actually I think much of it was based on Robert Nozick). Some of the arguments are convincing, others are not, and many of the conclusions are taken too far; but it’s well within the space of reasonable philosophical arguments. My reactions to this book were things like “Hmm, that’s an interesting perspective.” and “Your argument is valid, but I think I reject the second premise.”

3. A delusional rant of the sort that could only be penned by a True Believer in the One True Gospel of Ayn Rand, about how poor people are lazy moochers, billionaires are world-changing geniuses whose superior talent and great generosity we should all bow down before, and anyone who would dare suggest that perhaps Steve Jobs got lucky or owes something to the rest of society is an authoritarian Communist who hates all achievement and wants to destroy the American Dream. It was this book that gave me reactions like “How can anyone as educated as you believe anything that stupid!?” and “You clearly have no idea what poverty is like, do you?” and “[expletive] you, you narcissistic ingrate!”

Given that the two co-authors are Executive Director and a fellow of the Ayn Rand Institute, I suppose I should really be pleasantly surprised that books 1 and 2 exist, rather than disappointed by book 3.

As evidence of each of the three books interleaved, I offer the following quotations:

Book 1:

“All else being equal, taxes discourage production and prosperity.” (p. 30)

No reasonable economist would disagree. The key is all else being equal—it rarely is.

“For most of human history, our most pressing problem was getting enough food. Now food is abundant and affordable.” (p.84)

Correct! And worth pointing out, especially to anyone who thinks that economic progress is an illusion or we should go back to pre-industrial farming practices—and such people do exist.

“Wealth creation is first and foremost knowledge creation. And this is why you can add to the list of people who have created the modern world, great thinkers: people such as Euclid, Aristotle, Galileo, Newton, Darwin, Einstein, and a relative handful of others.” (p.90, emph. in orig.)

Absolutely right, though as I’ll get to below there’s something rather notable about that list.

“To be sure, there is competition in an economy, but it’s not a zero-sum game in which some have to lose so that others can win—not in the big picture.” (p. 97)

Yes! Precisely! I wish I could explain to more people—on both the Left and the Right, by the way—that economics is nonzero-sum, and that in the long run competitive markets improve the standard of living of society as a whole, not just the people who win that competition.

Book 2:

“Even opportunities that may come to us without effort on our part—affluent parents, valuable personal connections, a good education—require enormous effort to capitalize on.” (p. 66)

This is sometimes true, but clearly doesn’t apply to things like the Waltons’ inherited billions, for which all they had to do was be born in the right family and not waste their money too extravagantly.

“But life is not a game, and achieving equality of initial chances means forcing people to play by different rules.” (p. 79)

This is an interesting point, and one that I think we should acknowledge; we must treat those born rich differently from those born poor, because their unequal starting positions mean that treating them equally from this point forward would lead to a wildly unfair outcome. If my grandfather stole your grandfather’s wealth and passed it on to me, the fair thing to do is not to treat you and I equally from this point forward—it’s to force me to return what was stolen, insofar as that is possible. And even if we suppose that my grandfather earned far vaster wealth than yours, I think a more limited redistribution remains justified simply to put you and I on a level playing field and ensure fair competition and economic efficiency.

“The key error in this argument is that it totally mischaracterizes what it means to earn something. For the egalitarians, the results of our actions don’t merely have to be under our control, but entirely of our own making. […] But there is nothing like that in reality, and so what the egalitarians are ultimately doing is wiping out the very possibility of earning something.” (p. 193)

The way they use “egalitarian” as an insult is a bit grating, but there clearly are some actual egalitarian philosophers whose views are this extreme, such as G.A. Cohen, James Kwak and Peter Singer. I strongly agree that we need to make a principled distinction between gains that are earned and gains that are unearned, such that both sets are nonempty. Yet while Cohen would seem to make “earned” an empty set, Watkins and Brook very nearly make “unearned” empty—you get what you get, and you deserve it. The only exceptions they seem willing to make are outright theft and, what they consider equivalent, taxation. They have no concept of exploitation, excessive market power, or arbitrage—and while they claim they oppose fraud, they seem to think that only government is capable of it.

Book 3:

“What about government handouts (usually referred to as ‘transfer payments’)?” (p. 23)

Because Social Security is totally just a handout—it’s not like you pay into it your whole life or anything.

“No one cares whether the person who fixes his car or performs his brain surgery or applies for a job at his company is male or female, Indian or Pakistani—he wants to know whether they are competent.” (p.61)

Yes they do. We have direct experimental evidence of this.

“The notion that ‘spending drives the economy’ and that rich people spend less than others isn’t a view seriously entertained by economists,[…]” (p. 110)

The New Synthesis is Keynesian! This is what Milton Friedman was talking about when he said, “We’re all Keynesians now.”

“Because mobility statistics don’t distinguish between those who don’t rise and those who can’t, they are useless when it comes to assessing how healthy mobility is.” (p. 119)

So, if Black people have much lower odds of achieving high incomes even controlling for education, we can’t assume that they are disadvantaged or discriminated against; maybe Black people are just lazy or stupid? Is that what you’re saying here? (I think it might be.)

“Payroll taxes alone amount to 15.3 percent of your income; money that is taken from you and handed out to the elderly. This means that you have to spend more than a month and a half each year working without pay in order to fund other people’s retirement and medical care.” (p. 127)

That is not even close to how taxes work. Taxes are not “taken” from money you’d otherwise get—taxation changes prices and the monetary system depends upon taxation.

“People are poor, in the end, because they have not created enough wealth to make themselves prosperous.” (p. 144)

This sentence was so awful that when I showed it to my boyfriend, he assumed it must be out of context. When I showed him the context, he started swearing the most I’ve heard him swear in a long time, because the context was even worse than it sounds. Yes, this book is literally arguing that the reason people are poor is that they’re just too lazy and stupid to work their way out of poverty.

“No society has fully implemented the egalitarian doctrine, but one came as close as any society can come: Cambodia’s Khmer Rouge.” (p. 207)

Because obviously the problem with the Khmer Rouge was their capital gains taxes. They were just too darn fair, and if they’d been more selfish they would never have committed genocide. (The authors literally appear to believe this.)


So there are my extensive quotations, to show that this really is what the book is saying. Now, a little more summary of the good, the bad, and the ugly.

One good thing is that the authors really do seem to understand fairly well the arguments of their opponents. They quote their opponents extensively, and only a few times did it feel meaningfully out of context. Their use of economic statistics is also fairly good, though occasionally they present misleading numbers or compare two obviously incomparable measures.

One of the core points in Equal is Unfair is quite weak: They argue against the “shared-pie assumption”, which is that we create wealth as a society, and thus the rest of society is owed some portion of the fruits of our efforts. They maintain that this is fundamentally authoritarian and immoral; essentially they believe a totalizing false dichotomy between either absolute laissez-faire or Stalinist Communism.

But the “shared-pie assumption” is not false; we do create wealth as a society. Human cognition is fundamentally social cognition; they said themselves that we depend upon the discoveries of people like Newton and Einstein for our way of life. But it should be obvious we can never pay Einstein back; so instead we must pay forward, to help some child born in the ghetto to rise to become the next Einstein. I agree that we must build a society where opportunity is maximized—and that means, necessarily, redistributing wealth from its current state of absurd and immoral inequality.

I do however agree with another core point, which is that most discussions of inequality rely upon a tacit assumption which is false: They call it the “fixed-pie assumption”.

When you talk about the share of income going to different groups in a population, you have to be careful about the fact that there is not a fixed amount of wealth in a society to be distributed—not a “fixed pie” that we are cutting up and giving around. If it were really true that the rising income share of the top 1% were necessary to maximize the absolute benefits of the bottom 99%, we probably should tolerate that, because the alternative means harming everyone. (In arguing this they quote John Rawls several times with disapprobation, which is baffling because that is exactly what Rawls says.)

Even if that’s true, there is still a case to be made against inequality, because too much wealth in the hands of a few people will give them more power—and unequal power can be dangerous even if wealth is earned, exchanges are uncoerced, and the distribution is optimally efficient. (Watkins and Brook dismiss this contention out of hand, essentially defining beneficent exploitation out of existence.)

Of course, in the real world, there’s no reason to think that the ballooning income share of the top 0.01% in the US is actually associated with improved standard of living for everyone else.

I’ve shown these graphs before, but they bear repeating:

Income shares for the top 1% and especially the top 0.1% and 0.01% have risen dramatically in the last 30 years.


But real median income has only slightly increased during the same period.


Thus, mean income has risen much faster than median income.


While theoretically it could be that the nature of our productivity technology has shifted in such a way that it suddenly became necessary to heap more and more wealth on the top 1% in order to continue increasing national output, there is actually very little evidence of this. On the contrary, as Joseph Stiglitz (Nobel Laureate, you may recall) has documented, the leading cause of our rising inequality appears to be a dramatic increase in rent-seeking, which is to say corruption, exploitation, and monopoly power. (This probably has something to do with why I found in my master’s thesis that rising top income shares correlate quite strongly with rising levels of corruption.)

Now to be fair, the authors of Equal is Unfair do say that they are opposed to rent-seeking, and would like to see it removed. But they have a very odd concept of what rent-seeking entails, and it basically seems to amount to saying that whatever the government does is rent-seeking, whatever corporations do is fair free-market competition. On page 38 they warn us not to assume that government is good and corporations are bad—but actually it’s much more that they assume that government is bad and corporations are good. (The mainstream opinion appears to be actually that both are bad, and we should replace them both with… er… something.)

They do make some other good points I wish more leftists would appreciate, such as the point that while colonialism and imperialism can damage countries that suffer them and make them poorer, they generally do not benefit the countries that commit them and make them richer. The notion that Europe is rich because of imperialism is simply wrong; Europe is rich because of education, technology, and good governance. Indeed, the greatest surge in Europe’s economic growth occurred as the period of imperialism was winding down—when Europeans realized that they would be better off trying to actually invent and produce things rather than stealing them from others.

Likewise, they rightfully demolish notions of primitivism and anti-globalization that I often see bouncing around from folks like Naomi Klein. But these are book 1 messages; any economist would agree that primitivism is a terrible idea, and very few are opposed to globalization per se.

The end of Equal is Unfair gives a five-part plan for unleashing opportunity in America:

1. Abolish all forms of corporate welfare so that no business can gain unfair advantage.

2. Abolish government barriers to work so that every individual can enjoy the dignity of earned success.

3. Phase out the welfare state so that America can once again become the land of self-reliance.

4. Unleash the power of innovation in education by ending the government monopoly on schooling.

5. Liberate innovators from the regulatory shackles that are strangling them.

Number 1 is hard to disagree with, except that they include literally everything the government does that benefits a corporation as corporate welfare, including things like subsidies for solar power that the world desperately needs (or millions of people will die).

Number 2 sounds really great until you realize that they are including all labor standards, environmental standards and safety regulations as “barriers to work”; because it’s such a barrier for children to not be able to work in a factory where your arm can get cut off, and such a barrier that we’ve eliminated lead from gasoline emissions and thereby cut crime in half.

Number 3 could mean a lot of things; if it means replacing the existing system with a basic income I’m all for it. But in fact it seems to mean removing all social insurance whatsoever. Indeed, Watkins and Brook do not appear to believe in social insurance at all. The whole concept of “less fortunate”, “there but for the grace of God go I” seems to elude them. They have no sense that being fortunate in their own lives gives them some duty to help others who were not; they feel no pang of moral obligation whatsoever to help anyone else who needs help. Indeed, they literally mock the idea that human beings are “all in this together”.

They also don’t even seem to believe in public goods, or somehow imagine that rational self-interest could lead people to pay for public goods without any enforcement whatsoever despite the overwhelming incentives to free-ride. (What if you allow people to freely enter a contract that provides such enforcement mechanisms? Oh, you mean like social democracy?)

Regarding number 4, I’d first like to point out that private schools exist. Moreover, so do charter schools in most states, and in states without charter schools there are usually vouchers parents can use to offset the cost of private schools. So while the government has a monopoly in the market share sense—the vast majority of education in the US is public—it does not actually appear to be enforcing a monopoly in the anti-competitive sense—you can go to private school, it’s just too expensive or not as good. Why, it’s almost as if education is a public good or a natural monopoly.

Number 5 also sounds all right, until you see that they actually seem most opposed to antitrust laws of all things. Why would antitrust laws be the ones that bother you? They are designed to increase competition and lower barriers, and largely succeed in doing so (when they are actually enforced, which is rare of late). If you really want to end barriers to innovation and government-granted monopolies, why is it not patents that draw your ire?

They also seem to have trouble with the difference between handicapping and redistribution—they seem to think that the only way to make outcomes more equal is to bring the top down and leave the bottom where it is, and they often use ridiculous examples like “Should we ban reading to your children, because some people don’t?” But of course no serious egalitarian would suggest such a thing. Education isn’t fungible, so it can’t be redistributed. You can take it away (and sometimes you can add it, e.g. public education, which Watkins and Brooks adamantly oppose); but you can’t simply transfer it from one person to another. Money on the other hand, is by definition fungible—that’s kind of what makes it money, really. So when we take a dollar from a rich person and give it to a poor person, the poor person now has an extra dollar. We’ve not simply lowered; we’ve also raised. (In practice it’s a bit more complicated than that, as redistribution can introduce inefficiencies. So realistically maybe we take $1.00 and give $0.90; that’s still worth doing in a lot of cases.)

If attributes like intelligence were fungible, I think we’d have a very serious moral question on our hands! It is not obvious to me that the world is better off with its current range of intelligence, compared to a world where geniuses had their excess IQ somehow sucked out and transferred to mentally disabled people. Or if you think that the marginal utility of intelligence is increasing, then maybe we should redistribute IQ upward—take it from some mentally disabled children who aren’t really using it for much and add it onto some geniuses to make them super-geniuses. Of course, the whole notion is ridiculous; you can’t do that. But whereas Watkins and Brook seem to think it’s obvious that we shouldn’t even if we could, I don’t find that obvious at all. You didn’t earn your IQ (for the most part); you don’t seem to deserve it in any deep sense; so why should you get to keep it, if the world would be much better off if you didn’t? Why should other people barely be able to feed themselves so I can be good at calculus? At best, maybe I’m free to keep it—but given the stakes, I’m not even sure that would be justifiable. Peter Singer is right about one thing: You’re not free to let a child drown in a lake just to keep your suit from getting wet.

Ultimately, if you really want to understand what’s going on with Equal is Unfair, consider the following sentence, which I find deeply revealing as to the true objectives of these Objectivists:

“Today, meanwhile, although we have far more liberty than our feudal ancestors, there are countless ways in which the government restricts our freedom to produce and trade including minimum wage laws, rent control, occupational licensing laws, tariffs, union shop laws, antitrust laws, government monopolies such as those granted to the post office and education system, subsidies for industries such as agriculture or wind and solar power, eminent domain laws, wealth redistribution via the welfare state, and the progressive income tax.” (p. 114)

Some of these are things no serious economist would disagree with: We should stop subsidizing agriculture and tariffs should be reduced or removed. Many occupational licenses are clearly unnecessary (though this has a very small impact on inequality in real terms—licensing may stop you from becoming a barber, but it’s not what stops you from becoming a CEO). Others are legitimately controversial: Economists are currently quite divided over whether minimum wage is beneficial or harmful (I lean toward beneficial, but I’d prefer a better solution), as well as how to properly regulate unions so that they give workers much-needed bargaining power without giving unions too much power. But a couple of these are totally backward, exactly contrary to what any mainstream economist would say: Antitrust laws need to be enforced more, not eliminated (don’t take it from me; take it from that well-known Marxist rag The Economist). Subsidies for wind and solar power make the economy more efficient, not less—and suspiciously Watkins and Brook omitted the competing subsidies that actually are harmful, namely those to coal and oil.

Moreover, I think it’s very revealing that they included the word progressive when talking about taxation. In what sense does making a tax progressive undermine our freedom? None, so far as I can tell. The presence of a tax undermines freedom—your freedom to spend that money some other way. Making the tax higher undermines freedom—it’s more money you lose control over. But making the tax progressive increases freedom for some and decreases it for others—and since rich people have lower marginal utility of wealth and are generally more free in substantive terms in general, it really makes the most sense that, holding revenue constant, making a tax progressive generally makes your people more free.

But there’s one thing that making taxes progressive does do: It benefits poor people and hurts rich people. And thus the true agenda of Equal is Unfair becomes clear: They aren’t actually interested in maximizing freedom—if they were, they wouldn’t be complaining about occupational licensing and progressive taxation, they’d be outraged by forced labor, mass incarceration, indefinite detention, and the very real loss of substantive freedom that comes from being born into poverty. They wouldn’t want less redistribution, they’d want more efficient and transparent redistribution—a shift from the current hodgepodge welfare state to a basic income system. They would be less concerned about the “freedom” to pollute the air and water with impunity, and more concerned about the freedom to breathe clean air and drink clean water.

No, what they really believe is rich people are better. They believe that billionaires attained their status not by luck or circumstance, not by corruption or ruthlessness, but by the sheer force of their genius. (This is essentially the entire subject of chapter 6, “The Money-Makers and the Money-Appropriators”, and it’s nauseating.) They describe our financial industry as “fundamentally moral and productive” (p.156)—the industry that you may recall stole millions of homes and laundered money for terrorists. They assert that no sane person could believe that Steve Wozniack got lucky—I maintain no sane person could think otherwise. Yes, he was brilliant; yes, he invented good things. But he had to be at the right place at the right time, in a society that supported and educated him and provided him with customers and employees. You didn’t build that.

Indeed, perhaps most baffling is that they themselves seem to admit that the really great innovators, such as Newton, Einstein, and Darwin, were scientists—but scientists are almost never billionaires. Even the common counterexample, Thomas Edison, is largely false; he mainly plagiarized from Nikola Tesla and appropriated the ideas of his employees. Newton, Einstein and Darwin were all at least upper-middle class (as was Tesla, by the way—he did not die poor as is sometimes portrayed), but they weren’t spectacularly mind-bogglingly rich the way that Steve Jobs and Andrew Carnegie were and Bill Gates and Jeff Bezos are.

Some people clearly have more talent than others, and some people clearly work harder than others, and some people clearly produce more than others. But I just can’t wrap my head around the idea that a single man can work so hard, be so talented, produce so much that he can deserve to have as much wealth as a nation of millions of people produces in a year. Yet, Mark Zuckerberg has that much wealth. Remind me again what he did? Did he cure a disease that was killing millions? Did he colonize another planet? Did he discover a fundamental law of nature? Oh yes, he made a piece of software that’s particularly convenient for talking to your friends. Clearly that is worth the GDP of Latvia. Not that silly Darwin fellow, who only uncovered the fundamental laws of life itself.

In the grand tradition of reducing complex systems to simple numerical values, I give book 1 a 7/10, book 2 a 5/10, and book 3 a 2/10. Equal is Unfair is about 25% book 1, 25% book 2, and 50% book 3, so altogether their final score is, drumroll please: 4/10. Maybe read the first half, I guess? That’s where most of the good stuff is.

How about we listen to the Nobel Laureate when we set our taxes?

JDN 2457321 EDT 11:20

I know I’m going out on a limb here, but I think it would generally be a good thing if we based our tax system on the advice of Nobel Laureate economists. Joseph Stiglitz wrote a tax policy paper for the Roosevelt Institution last year that describes in detail how our tax system could be reformed to simultaneously restore economic growth, reduce income inequality, promote environmental sustainability, and in the long run even balance the budget. What’s more, he did the math (I suppose Nobel Laureate economists are known for that), and it looks like his plan would actually work.

The plan is good enough that I think it’s worth going through in some detail.

He opens by reminding us that our “debt crisis” is of our own making, the result of politicians (and voters) who don’t understand economics:

“But we should be clear that these crises – which have resulted in a government shutdown and a near default on the national debt – are not economic but political. The U.S. is not like Greece, unable to borrow to fund its debt and deficit. Indeed, the U.S. has been borrowing at negative real interest rates.”

Stiglitz pulls no punches against bad policies, and isn’t afraid to single out conservatives:

“We also show that some of the so-called reforms that conservatives propose would be counterproductive – they could simultaneously reduce growth and economic welfare and increase unemployment and inequality. It would be better to have no reform than these reforms.”

A lot of the news media keep trying to paint Bernie Sanders as a far-left radical candidate (like this article in Politico calling his hometown the “People’s Republic of Burlington”), because he says things like this: “in recent years, over 99 percent of all new income generated in the economy has gone to the top 1 percent.”

But the following statement was not said by Bernie Sanders, it was said by Joseph Stiglitz, who I will remind you one last time is a world-renowned Nobel Laureate economist:

“The weaknesses in the labor market are reflected in low wages and stagnating incomes. That helps explain why 95 percent of the increase in incomes in the three years after the recovery officially began went to the upper 1 percent. For most Americans, there has been no recovery.”

It was also Stiglitz who said this:

“The American Dream is, in reality, a myth. The U.S. has some of the worst inequality across generations (social mobility) among wealthy nations. The life prospects of a young American are more dependent on the income and education of his parents than in other advanced countries.”

In this country, we have reached the point where policies supported by the analysis of world-renowned economists is considered far-left radicalism, while the “mainstream conservative” view is a system of tax policy that is based on pure fantasy, which has been called “puppies and rainbows” by serious policy analysts and “voodoo economics” by yet another Nobel Laureate economist. A lot of very smart people don’t understand what’s happening in our political system, and want “both sides” to be “equally wrong”, but that is simply not the case: Basic facts of not just social science (e.g. Keynesian monetary policy), but indeed natural science (evolutionary biology, anthropogenic climate change) are now considered “political controversies” because the right wing doesn’t want to believe them.

But let’s get back to the actual tax plan Stiglitz is proposing. He is in favor of raising some taxes and lowering others, spending more on some things and less on other things. His basic strategy is actually quite simple: Raise taxes with low multipliers and cut taxes with high multipliers. Raise spending with high multipliers and cut spending with low multipliers.

“While in general taxes take money out of the system, and therefore have a deflationary bias, some taxes have a larger multiplier than others, i.e. lead to a greater reduction in aggregate demand per dollar of revenue raised. Taxes on the rich and superrich, who save a large fraction of their income, have the least adverse effect on aggregate demand. Taxes on lower income individuals have the most adverse effect on aggregate demand.”

In other words, by making the tax system more progressive, we can directly stimulate economic growth while still increasing the amount of tax revenue we raise. And of course we have plenty of other moral and economic reasons to prefer progressive taxation.

Stiglitz tears apart the “job creator” myth:

“It is important to dispel a misunderstanding that one often hears from advocates of lower taxes for the rich and corporations, which contends that the rich are the job producers, and anything that reduces their income will reduce their ability and incentive to create jobs. First, at the current time, it is not lack of funds that is holding back investment. It is not even a weak and dysfunctional financial sector. America’s large corporations are sitting on more than $2 trillion in cash. What is holding back investment, especially by large corporations, is the lack of demand for their products.”

Stiglitz talks about two principles of taxation to follow:

First is the Generalized Henry George Principle, that we should focus taxes on things that are inelastic, meaning their supply isn’t likely to change much with the introduction of a tax. Henry George favored taxing land, which is quite inelastic indeed. The reason we do this is to reduce the economic distortions created by a tax; the goal is to collect revenue without changing the number of real products that are bought and sold. We need to raise revenue and we want to redistribute income, but we want to do it without creating unnecessary inefficiencies in the rest of the economy.

Second is the Generalized Polluter Pays Principle, that we should tax things that have negative externalities—effects on other people that are harmful. When a transaction causes harm to others who were not party to the transaction, we should tax that transaction in an amount equal to the harm that it would cause, and then use that revenue to offset the damage. In effect, if you hurt someone else, you should have to pay to clean up your own mess. This makes obvious moral sense, but it also makes good economic sense; taxing externalities can improve economic efficiency and actually make everyone better off. The obvious example is again pollution (the original Polluter Pays Principle), but there are plenty of other examples as well.

Stiglitz of course supports taxes on pollution and carbon emissions, which really should be a no-brainer. They aren’t just good for the environment, they would directly increase economic efficiency. The only reason we don’t have comprehensive pollution taxes (or something similar like cap-and-trade) is again the political pressure of right-wing interests.

Stiglitz focuses in particular on the externalities of the financial system, the boom-and-bust cycle of bubble, crisis, crash that has characterized so much of our banking system for generations. With a few exceptions, almost every major economic crisis has been preceded by some sort of breakdown of the financial system (and typically widespread fraud by the way). It is not much exaggeration to say that without Wall Street there would be no depressions. Externalities don’t get a whole lot bigger than that.

Stiglitz proposes a system of financial transaction taxes that are designed to create incentives against the most predatory practices in finance, especially the high-frequency trading in which computer algorithms steal money from the rest of the economy thousands of times per second. Even a 0.01% tax on each financial transaction would probably be enough to eliminate this particular activity.

He also suggests the implementation of “bonus taxes” which disincentivize paying bonuses, which could basically be as simple as removing the deductions placed during the Clinton administration (in a few years are we going to have to say “the first Clinton administration”?) that exempt “performance-based pay” from most forms of income tax. All pay is performance-based, or supposed to be. There should be no special exemption for bonuses and stock options.

Stiglitz also proposes a “bank rescue fund” which would be something like an expansion of the FDIC insurance that banks are already required to have, but designed as catastrophe insurance for the whole macroeconomy. Instead of needing bailed out from general government funds, banks would only be bailed out from a pool of insurance funds they paid in themselves. This could work, but honestly I think I’d rather reduce the moral hazard even more by saying that we will never again bail out banks directly, but instead bail out consumers and real businesses. This would probably save banks anyway (most people don’t default on debts if they can afford to pay them), and if it doesn’t, I don’t see why we should care. The only reason banks exist is to support the real economy; if we can support the real economy without them, they deserve to die. That basic fact seems to have been lost somewhere along the way, and we keep talking about how to save or stabilize the financial system as if it were valuable unto itself.

Stiglitz also proposes much stricter regulations on credit cards, which would require them to charge much lower transaction fees and also pay a portion of their transaction revenue in taxes. I think it’s fair to ask whether we need credit cards at all, or if there’s some alternative banking system that would allow people to make consumer purchases without paying 20% annual interest. (It seems like there ought to be, doesn’t it?)

Next Stiglitz gets to his proposal to reform the corporate income tax. Like many of us, he is sick of corporations like Apple and GE with ten and eleven-figure profits paying little or no taxes by exploiting a variety of loopholes. He points out some of the more egregious ones, like the “step up of basis at death” which allows inherited capital to avoid taxation (personally, I think both morally and economically the optimal inheritance tax rate is 100%!), as well as the various loopholes on offshore accounting which allow corporations to design and sell their products in the US, even manufacture them here, and pay taxes as if all their work were done in the Cayman Islands. He also points out that the argument that corporate taxes disincentivize investment is ridiculous, because most investment is financed by corporate bonds which are tax-deductible.

Stiglitz departs from most other economists in that he actually proposes raising the corporate tax rate itself. Most economists favor cutting the rate on paper, then closing the loopholes to ensure that the new rate is actually paid. Stiglitz says this is not enough, and we must both close the loopholes and increase the rate.

I’m actually not sure I agree with him on this; the incidence of corporate taxes is not very well-understood, and I think there’s a legitimate worry that taxing Apple will make iPhones more expensive without actually taking any money from Tim Cook. I think it would be better to get rid of the corporate tax entirely and then dramatically raise the marginal rates on personal income, including not only labor income but also all forms of capital income. Instead of taxing Apple hoping it will pass through to Tim Cook, I say we just tax Tim Cook. Directly tax his $4 million salary and $70 million in stock options.

Stiglitz does have an interesting proposal to introduce “rent-seeking” taxes that specifically apply to corporations which exercise monopoly or oligopoly power. If you can actually get this to work, it’s very clever; you could actually create a market incentive for corporations to support their own competition—and not in the sense of collusion but in the sense of actually trying to seek out more competitive markets in order to avoid the monopoly tax. Unfortunately, Stiglitz is a little vague on how we’d actually pull that off.

One thing I do agree with Stiglitz on is the use of refundable tax credits to support real investment. Instead of this weird business about not taxing dividends and capital gains in the hope that maybe somehow this will support real investment, we actually give tax credits specifically to companies that build factories or hire more workers.

Stiglitz also does a good job of elucidating the concept of “corporate welfare”, officially called “tax expenditures”, in which subsidies for corporations are basically hidden in the tax code as rebates or deductions. This is actually what Obama was talking about when he said “spending in the tax code”, (he did not invent the concept of tax expenditures), but since he didn’t explain himself well even Jon Stewart accused him of Orwellian Newspeak. Economically a refundable tax rebate of $10,000 is exactly the same thing as a subsidy of $10,000. There are some practical and psychological differences, but there are no real economic differences. If you’re still confused about tax expenditures, the Center for American Progress has a good policy memo on the subject.

Stiglitz also has some changes to make to the personal income tax, all of which I think are spot-on. First we increase the marginal rates, particularly at the very top. Next we equalize rates on all forms of income, including capital income. Next, we remove most, if not all, of the deductions that allow people to avoid paying the rate it says on paper. Finally, we dramatically simplify the tax code so that the majority of people can file a simplified return which basically just says, “This is my income. This is the tax rate for that income. This is what I owe.” You wouldn’t have to worry about itemizing your student loans or mortgage payments or whatever else; just tally up your income and look up your rate. As he points out, this would save a lot of people a lot of stress and also remove a lot of economic distortions.

He talks about how we can phase out the mortgage-interest deduction in particular, because it’s clearly inefficient and regressive but it’s politically popular and dropping it suddenly could lead to another crisis in housing prices.

Stiglitz has a deorbit for anyone who thinks capital income should not be taxed:

“There is, moreover, no justification for taxing those who work hard to earn a living at a higher rate than those who derive their income from speculation.”

By equalizing rates on labor and capital income, he estimates we could raise an additional $130 billion per year—just shy of what it would take to end world hunger. (Actually some estimates say it would be more than enough, others that it would be about half what we need. It’s definitely in the ballpark, however.)

Stiglitz actually proposes making a full deduction of gross household income at $100,000, meaning that the vast majority of Americans would pay no income tax at all. This is where he begins to lose me, because it necessarily means we aren’t going to raise enough revenue by income taxes alone.

He proposes to make up the shortfall by introducing a value-added tax, a VAT. I have to admit a lot of countries have these (including most of Europe) and seem to do all right with them; but I never understood why they are so popular among economists. They are basically sales taxes, and it’s very hard to make any kind of sales tax meaningfully progressive. In fact, they are typically regressive, because rich people spend a smaller proportion of their income than poor people do. Unless we specifically want to disincentivize buying things (and a depression is not the time to do that!), I don’t see why we would want to switch to a sales tax.

At the end of the paper Stiglitz talks about the vital difference between short-term spending cuts and long-term fiscal sustainability:

“Thus, policies that promote output and employment today also contribute to future growth – particularly if they lead to more investment. Thus, austerity measures that take the form of cutbacks in spending on infrastructure, technology, or education not only weaken the economy today, but weaken it in the future, both directly (through the obvious impacts, for example, on the capital stock) but also indirectly, through the diminution in human capital that arises out of employment or educational experience. […] Mindless “deficit fetishism” is likely to be counterproductive. It will weaken the economy and prove counterproductive to raising revenues because the main reason that we are in our current fiscal position is the weak economy.”

It amazes me how many people fail to grasp this. No one would say that paying for college is fiscally irresponsible, because we know that all that student debt will be repaid by your increased productivity and income later on; yet somehow people still think that government subsidies for education are fiscally irresponsible. No one would say that it is a waste of money for a research lab to buy new equipment in order to have a better chance at making new discoveries, yet somehow people still think it is a waste of money for the government to fund research. The most legitimate form of this argument is “crowding-out”, the notion that the increased government spending will be matched by an equal or greater decrease in private spending; but the evidence shows that many public goods—like education, research, and infrastructure—are currently underfunded, and if there is any crowding-out, it is much smaller than the gain produced by the government investment. Crowding-out is theoretically possible but empirically rare.

Above all, now is not the time to fret about deficits. Now is the time to fret about unemployment. We need to get more people working; we need to create jobs for those who are already seeking them, better jobs for those who have them but want more, and opportunities for people who have given up searching for work to keep trying. To do that, we need spending, and we will probably need deficits. That’s all right; once the economy is restored to full capacity then we can adjust our spending to balance the budget (or we may not even need to, if we devise taxes correctly).

Of course, I fear that most of these policies will fall upon deaf ears; but Stiglitz calls us to action:

“We can reform our tax system in ways that will strengthen the economy today, address current economic and social problems, and strengthen our economy for the future. The economic agenda is clear. The question is, will the vested interests which have played such a large role in creating the current distorted system continue to prevail? Do we have the political will to create a tax system that is fair and serves the interests of all Americans?”

How following the crowd can doom us all

JDN 2457110 EDT 21:30

Humans are nothing if not social animals. We like to follow the crowd, do what everyone else is doing—and many of us will continue to do so even if our own behavior doesn’t make sense to us. There is a very famous experiment in cognitive science that demonstrates this vividly.

People are given a very simple task to perform several times: We show you line X and lines A, B, and C. Now tell us which of A, B or C is the same length as X. Couldn’t be easier, right? But there’s a trick: seven other people are in the same room performing the same experiment, and they all say that B is the same length as X, even though you can clearly see that A is the correct answer. Do you stick with what you know, or say what everyone else is saying? Typically, you say what everyone else is saying. Over 18 trials, 75% of people followed the crowd at least once, and some people followed the crowd every single time. Some people even began to doubt their own perception, wondering if B really was the right answer—there are four lights, anyone?

Given that our behavior can be distorted by others in such simple and obvious tasks, it should be no surprise that it can be distorted even more in complex and ambiguous tasks—like those involved in finance. If everyone is buying up Beanie Babies or Tweeter stock, maybe you should too, right? Can all those people be wrong?

In fact, matters are even worse with the stock market, because it is in a sense rational to buy into a bubble if you know that other people will as well. As long as you aren’t the last to buy in, you can make a lot of money that way. In speculation, you try to predict the way that other people will cause prices to move and base your decisions around that—but then everyone else is doing the same thing. By Keynes called it a “beauty contest”; apparently in his day it was common to have contests for picking the most beautiful photo—but how is beauty assessed? By how many people pick it! So you actually don’t want to choose the one you think is most beautiful, you want to choose the one you think most people will think is the most beautiful—or the one you think most people will think most people will think….

Our herd behavior probably made a lot more sense when we evolved it millennia ago; when most of your threats are external and human beings don’t have that much influence over our environment, the majority opinion is quite likely to be right, and can often given you an answer much faster than you could figure it out on your own. (If everyone else thinks a lion is hiding in the bushes, there’s probably a lion hiding in the bushes—and if there is, the last thing you want is to be the only one who didn’t run.) The problem arises when this tendency to follow the ground feeds back on itself, and our behavior becomes driven not by the external reality but by an attempt to predict each other’s predictions of each other’s predictions. Yet this is exactly how financial markets are structured.

With this in mind, the surprise is not why markets are unstable—the surprise is why markets are ever stable. I think the main reason markets ever manage price stability is actually something most economists think of as a failure of markets: Price rigidity and so-called “menu costs“. If it’s costly to change your price, you won’t be constantly trying to adjust it to the mood of the hour—or the minute, or the microsecondbut instead trying to tie it to the fundamental value of what you’re selling so that the price will continue to be close for a long time ahead. You may get shortages in times of high demand and gluts in times of low demand, but as long as those two things roughly balance out you’ll leave the price where it is. But if you can instantly and costlessly change the price however you want, you can raise it when people seem particularly interested in buying and lower it when they don’t, and then people can start trying to buy when your price is low and sell when it is high. If people were completely rational and had perfect information, this arbitrage would stabilize prices—but since they’re not, arbitrage attempts can over- or under-compensate, and thus result in cyclical or even chaotic changes in prices.

Our herd behavior then makes this worse, as more people buying leads to, well, more people buying, and more people selling leads to more people selling. If there were no other causes of behavior, the result would be prices that explode outward exponentially; but even with other forces trying to counteract them, prices can move suddenly and unpredictably.

If most traders are irrational or under-informed while a handful are rational and well-informed, the latter can exploit the former for enormous amounts of money; this fact is often used to argue that irrational or under-informed traders will simply drop out, but it should only take you a few moments of thought to see why that isn’t necessarily true. The incentives isn’t just to be well-informed but also to keep others from being well-informed. If everyone were rational and had perfect information, stock trading would be the most boring job in the world, because the prices would never change except perhaps to grow with the growth rate of the overall economy. Wall Street therefore has every incentive in the world not to let that happen. And now perhaps you can see why they are so opposed to regulations that would require them to improve transparency or slow down market changes. Without the ability to deceive people about the real value of assets or trigger irrational bouts of mass buying or selling, Wall Street would make little or no money at all. Not only are markets inherently unstable by themselves, in addition we have extremely powerful individuals and institutions who are driven to ensure that this instability is never corrected.

This is why as our markets have become ever more streamlined and interconnected, instead of becoming more efficient as expected, they have actually become more unstable. They were never stable—and the gold standard made that instability worse—but despite monetary policy that has provided us with very stable inflation in the prices of real goods, the prices of assets such as stocks and real estate have continued to fluctuate wildly. Real estate isn’t as bad as stocks, again because of price rigidity—houses rarely have their values re-assessed multiple times per year, let alone multiple times per second. But real estate markets are still unstable, because of so many people trying to speculate on them. We think of real estate as a good way to make money fast—and if you’re lucky, it can be. But in a rational and efficient market, real estate would be almost as boring as stock trading; your profits would be driven entirely by population growth (increasing the demand for land without changing the supply) and the value added in construction of buildings. In fact, the population growth effect should be sapped by a land tax, and then you should only make a profit if you actually build things. Simply owning land shouldn’t be a way of making money—and the reason for this should be obvious: You’re not actually doing anything. I don’t like patent rents very much, but at least inventing new technologies is actually beneficial for society. Owning land contributes absolutely nothing, and yet it has been one of the primary means of amassing wealth for centuries and continues to be today.

But (so-called) investors and the banks and hedge funds they control have little reason to change their ways, as long as the system is set up so that they can keep profiting from the instability that they foster. Particularly when we let them keep the profits when things go well, but immediately rush to bail them out when things go badly, they have basically no incentive at all not to take maximum risk and seek maximum instability. We need a fundamentally different outlook on the proper role and structure of finance in our economy.

Fortunately one is emerging, summarized in a slogan among economically-savvy liberals: Banking should be boring. (Elizabeth Warren has said this, as have Joseph Stiglitz and Paul Krugman.) And indeed it should, for all banks are supposed to be doing is lending money from people who have it and don’t need it to people who need it but don’t have it. They aren’t supposed to be making large profits of their own, because they aren’t the ones actually adding value to the economy. Indeed it was never quite clear to me why banks should be privatized in the first place, though I guess it makes more sense than, oh, say, prisons.

Unfortunately, the majority opinion right now, at least among those who make policy, seems to be that banks don’t need to be restructured or even placed on a tighter leash; no, they need to be set free so they can work their magic again. Even otherwise reasonable, intelligent people quickly become unshakeable ideologues when it comes to the idea of raising taxes or tightening regulations. And as much as I’d like to think that it’s just a small but powerful minority of people who thinks this way, I know full well that a large proportion of Americans believe in these views and intentionally elect politicians who will act upon them.

All the more reason to break from the crowd, don’t you think?

No, capital taxes should not be zero

JDN 2456998 PST 11:38.

It’s an astonishingly common notion among neoclassical economists that we should never tax capital gains, and all taxes should fall upon labor income. Here Scott Sumner writing for The Economist has the audacity to declare this a ‘basic principle of economics’. Many of the arguments are based on rather esoteric theorems like the Atkinson-Stiglitz Theorem (I thought you were better than that, Stiglitz!) and the Chamley-Judd Theorem.

All of these theorems rest upon two very important assumptions, which many economists take for granted—yet which are utterly and totally untrue. For once it’s not assumed that we are infinite identical psychopaths; actually psychopaths might not give wealth to their children in inheritance, which would undermine the argument in a different way, by making each individual have a finite time horizon. No, the assumptions are that saving is the source of investment, and investment is the source of capital income.

Investment is the source of capital, that’s definitely true—the total amount of wealth in society is determined by investment. You do have to account for the fact that real investment isn’t just factories and machines, it’s also education, healthcare, infrastructure. With that in mind, yes, absolutely, the total amount of wealth is a function of the investment rate.

But that doesn’t mean that investment is the source of capital income—because in our present system the distribution of capital income is in no way determined by real investment or the actual production of goods. Virtually all capital income comes from financial markets, which are rife with corruption—they are indeed the main source of corruption that remains in First World nations—and driven primarily by arbitrage and speculation, not real investment. Contrary to popular belief and economic theory, the stock market does not fund corporations; corporations fund the stock market. It’s this bizarre game our society plays, in which a certain portion of the real output of our productive industries is siphoned off so that people who are already rich can gamble over it. Any theory of capital income which fails to take these facts into account is going to be fundamentally distorted.

The other assumption is that investment is savings, that the way capital increases is by labor income that isn’t spent on consumption. This isn’t even close to true, and I never understood why so many economists think it is. The notion seems to be that there is a certain amount of money in the world, and what you don’t spend on consumption goods you can instead spend on investment. But this is just flatly not true; the money supply is dynamically flexible, and the primary means by which money is created is through banks creating loans for the purpose of investment. It’s that I term I talked about in my post on the deficit; it seems to come out of nowhere, because that’s literally what happens.

On the reasoning that savings is just labor income that you don’t spend on consumption, then if you compute the figure W – C , wages and salaries minus consumption, that figure should be savings, and it should be equal to investment. Well, that figure is negative—for reasons I gave in that post. Total employee compensation in the US in 2014 is $9.2 trillion, while total personal consumption expenditure is $11.4 trillion. The reason we are able to save at all is because of government transfers, which account for $2.5 trillion. To fill up our GDP to its total of $16.8 trillion, you need to add capital income: proprietor income ($1.4 trillion) and receipts on assets ($2.1 trillion); then you need to add in the part of government spending that isn’t transfers ($1.4 trillion).

If you start with the fanciful assumption that the way capital increases is by people being “thrifty” and choosing to save a larger proportion of their income, then it makes some sense not to tax capital income. (Scott Sumner makes exactly that argument, having us compare two brothers with equal income, one of whom chooses to save more.) But this is so fundamentally removed from how capital—and for that matter capitalism—actually operates that I have difficulty understanding why anyone could think that it is true.

The best I can come up with is something like this: They model the world by imagining that there is only one good, peanuts, and everyone starts with the same number of peanuts, and everyone has a choice to either eat their peanuts or save and replant them. Then, the total production of peanuts in the future will be due to the proportion of peanuts that were replanted today, and the amount of peanuts each person has will be due to their past decisions to save rather than consume. Therefore savings will be equal to investment and investment will be the source of capital income.

I bet you can already see the problem even in this simple model, if we just relax the assumption of equal wealth endowments: Some people have a lot more peanuts than others. Why do some people eat all their peanuts? Well it probably has something to do with the fact they’d starve if they didn’t. Reducing your consumption below the level at which you can survive isn’t “thrifty”, it’s suicidal. (And if you think this is a strawman, the IMF has literally told Third World countries that their problem is they need to save more. Here they are arguing that in Ghana.) In fact, economic growth leads to saving, not the other way around. Most Americans aren’t starving, and could probably stand to save more than we do, but honestly it might not be good if we did—everyone trying to save more can lead to the Paradox of Thrift and cause a recession.

Even worse, in that model world, there is only capital income. There is no such thing as labor income, only the number of peanuts you grow from last year’s planting. If we now add in labor income, what happens? Well, peanuts don’t work anymore… let’s try robots. You have a certain number of robots, and you can either use the robots to do things you need (including somehow feeding you, I guess), or you can use them to build more robots to use later. You can also build more robots yourself. Then the “zero capital tax” argument amounts to saying that the government should take some of your robots for public use if you made them yourself, but not if they were made by other robots you already had.

In order for that argument to carry through, you need to say that there was no such thing as an initial capital endowment; all robots that exist were either made by their owners or saved from previous construction. If there is anyone who simply happened to be born with more robots, or has more because they stole them from someone else (or, more likely, both, they inherited from someone who stole), the argument falls apart.

And even then you need to think about the incentives: If capital income is really all from savings, then taxing capital income provides an incentive to spend. Is that a bad thing? I feel like it isn’t; the economy needs spending. In the robot toy model, we’re giving people a reason to use their robots to do actual stuff, instead of just leaving them to make more robots. That actually seems like it might be a good thing, doesn’t it? More stuff gets done that helps people, instead of just having vast warehouses full of robots building other robots in the hopes that someday we can finally use them for something. Whereas, taxing labor income may give people an incentive not to work, which is definitely going to reduce economic output. More precisely, higher taxes on labor would give low-wage workers an incentive to work less, and give high-wage workers an incentive to work more, which is a major part of the justification of progressive income taxes. A lot of the models intended to illustrate the Chamley-Judd Theorem assume that taxes have an effect on capital but no effect on labor, which is kind of begging the question.

Another thought that occurred to me is: What if the robots in the warehouse are all destroyed by a war or an earthquake? And indeed the possibility of sudden capital destruction would be a good reason not to put everything into investment. This is generally modeled as “uninsurable depreciation risk”, but come on; of course it’s uninsurable. All real risk is uninsurable in the aggregate. Insurance redistributes resources from those who have them but don’t need them to those who suddenly find they need them but don’t have them. This actually does reduce the real risk in utility, but it certainly doesn’t reduce the real risk in terms of goods. Stephen Colbert made this point very well: “Obamacare needs the premiums of healthier people to cover the costs of sicker people. It’s a devious con that can only be described as—insurance.” (This suggests that Stephen Colbert understands insurance better than many economists.) Someone has to make that new car that you bought using your insurance when you totaled the last one. Insurance companies cannot create cars or houses—or robots—out of thin air. And as Piketty and Saez point out, uninsurable risk undermines the Chamley-Judd Theorem. Unlike all these other economists, Piketty and Saez actually understand capital and inequality.
Sumner hand-waves that point away by saying we should just institute a one-time transfer of wealth to equalized the initial distribution, as though this were somehow a practically (not to mention politically) feasible alternative. Ultimately, yes, I’d like to see something like that happen; restore the balance and then begin anew with a just system. But that’s exceedingly difficult to do, while raising the tax rate on capital gains is very easy—and furthermore if we leave the current stock market and derivatives market in place, we will not have a just system by any stretch of the imagination. Perhaps if we can actually create a system where new wealth is really due to your own efforts, where there is no such thing as inheritance of riches (say a 100% estate tax above $1 million), no such thing as poverty (a basic income), no speculation or arbitrage, and financial markets that actually have a single real interest rate and offer all the credit that everyone needs, maybe then you can say that we should not tax capital income.

Until then, we should tax capital income, probably at least as much as we tax labor income.