Culture

Let’s Find Out – or: the Power of Reference

Joakim Book Culture, Philosophy , , , , , ,

The core message of a number of books I’ve recently had the great pleasure to read has been fairly simple. Have a look. Check it out. Put your numbers in perspective. In a world awash with statistics and cognitive biases imploring us to cheer mindlessly for our own team, having the skill and wherewithal to step back and carefully ask: “can this really be so?” is golden.

One of recently passed celebrity professor and YouTube phenomenon Hans Rosling’s most profound advice for countering misinformation about the state of the world is precisely this: put all numbers in perspective. Never accept unaccompanied numbers – never believe the numerator without checking the denominator. What matters, as Bryan Caplan never ceases to emphasize as the GMU Economics creed, “are statistics, not emotions – and arguments, not stories.”

But, a statistic may never be left alone, Rosling maintains, but always compared to other relevant numbers. What share of its total category does this statistic represent? What was it last year, 5 or 10 or 20 years ago? Is there some self-evident change in associated behavior that is relevant or ought to explain it? A century ago street cars used to kill and injure hundreds of people every year, but since very few American cities make use of street cars today, the casualty is fortunately much lower. If we keep in mind that miles travelled by cars far outnumber miles travelled by street cars, reporting the number of street car deaths – while probably correct – entirely miss the point when discussing traffic safety. In How Not To Be Wrong, Mathematics professor Jordan Ellenberg quipped

Dividing one number by another is mere computation ; knowing what to divide by what is mathematics.

Here’s another example. If I told you about 23 000 individual deaths and spent a brief 10 second on each of them, going through the list would take me almost three days. On a personal level like that, 23 000 deaths is an absurd, insane, catastrophe-style event that few people are emotionally equipped to handle – essentially the size of my hometown, wiped out in a single year. If I told you those 23 000 deaths were due to antibiotic resistant diseases in the U.S. last year, the pandemic scenarios working through your mind quickly escalate. That many! Let’s find the nearest bunker!

If I then told you that cancer and heart diseases (each!) claim the lives of about 20x that, the fear of lethal apocalyptic germs consuming the world ought to quickly recede. Oh.

Here’s another example. It is entirely correct to point out that the number of people killed in worldwide airplane accidents in 2018 (556 people) was much higher than the year before (44 people) and the year before that (325 people). Would one be excused for believing that air travel is getting more risky and dangerous? Forbes, for instance, ran a roughly accurate story claiming that airline fatalities increased by 900%.

Not in the slightest. The number of fatalities from air travel has been falling for decades, all while the number of flights and miles travelled have increased exponentially, meaning that the per-flight, per-mile or per-passenger risk of death has kept dropping. Not to mention that alternative modes of travelling like driving is magnitudes more dangerous.

While Rosling teaches us to figure out what the base rate is, i.e. putting our statistic into appropriate perspective, one of Philip Tetlock’s tricks for becoming a ‘Superforecaster’ is to use Bayesian updating of one’s beliefs. This picks up precisely where Rosling’s idea left off. Once we know where to start, we have to amass more information, numbers and observations from other points of view – Bayesian updating is a popular method to incorporate and synthesize new information with the old.

In short “Calculation, like logic, is your friend” (Landsburg 2018: 44). Statistics matter and numbers can deceive. In order to better understand our realities and see through mistakes that others make – either intentionally to deceive or persuade, or unintentionally through ignorance – we must embrace the core message of people like Ellenberg, Tetlock, Duffy, Rosling or Pinker.

Always Be Comparing Thy Numbers. Never accept an unaccompanied statistic. Never trust numerators without denominators.

Free Immigration is not a Classical Liberal Right

Edwin van de Haar Culture, Philosophy , , , , , , , , , ,

My eye caught this article, which stands in a long tradition among libertarians.

It is the kind of fairy tale theory that gives liberal thought a bad name in general, and classical liberal thought in particular, as it is often confused with libertarianism in the US.

My problem with arguments like these is that they make logical sense, but are practically non-sensical at the same time. I am more than willing to admit that in the ideal libertarian world free immigration indeed is a right. Yet I do not think arguments like these help us to get that libertarian ideal one inch closer. On the contrary, I am afraid it only fosters disdain and outright disbelief, even among potential supporters.

The main problem of course is that there is no ideal libertarian world. Yet libertarians all too often do not seem to care about that. They rather continue to argue about what fairy tales makes the most logical sense, rather than using their sometimes brilliant minds to come up with ideas and theories to actually foster a more liberal world. Let alone a classical liberal or a libertarian world.

To make a case for free immigration on the basis of rights is to deny the property rights of current populations. Roughly, that argument goes like this: in this world most immigrants will make some claim to these existing property rights once they arrive in their host country. Higher taxation to pay for the immigration system is one thing, but also think of housing, claims to health and medical systems, social welfare programs, schools, roads, et cetera. The majority of the current population has put money into (these) public goods, certainly in Europe, and thus property rights were created. These  should be protected and can only consensually be changed.

Also, there are more intangible effects, think for example of the change in culture and social cohesion, certainly before the new arrivals are fully integrated. Hayek warned against precisely these destabilizing effects of large groups of immigrants entering a relatively homogenous territory, drawing on his own Viennese experience in the interwar years. He openly supported Margaret Thatcher to this end in a letter to The Times on February 11, 1978, which were followed by further explanations in the same newspaper in the weeks thereafter.

This is not to say we should all build (or rather attempt to build) walls, or close off borders completely. Some form of immigration is indeed called for, if only out of humanitarian perspective. That is something completely different than free immigration though.

The French Have It Better?

Jacques Delacroix Culture, Economics , , , , , ,

As I keep saying, facts matter. Facts matter more than ideological consistency if you want to know. That’s why I keep comparing us with the other society I know well, France. I am up-to-date on it, a task facilitated by the fact that I read a major French newspaper online every day, by the fact that I watch the French-language Francophone television chain, TV5, nearly every day, and by occasional recourse to my brother who lives in France. My brother is especially useful as a source because he is well-informed by French standards, articulate, and an unreconstructed left-of-center statist. I suspect he has never in his life heard a clear exposition of how markets are supposed to work. He is a typical Frenchman in that respect.

I almost forgot: I must admit that I watch a French soap opera five days a week at lunchtime. And finally, I spy on my twenty-something French nieces and nephews through Facebook. I never say anything to them so they have forgotten I am their so-called “friend.” I almost forgot again: Until recently, I went to France often. Every time I was there, I made it my duty to read local newspapers and newsweeklies and to listen to the radio and to watch the news on television. I said “duty” because it was not always fun.

So, those are my credentials. I hope you find them as impressive as I do.

And, incidentally, for those who know me personally, mostly around Santa Cruz, the rumor that I am a guy from New Jersey who fakes a French accent to make himself interesting to the ladies, that rumor has no foundation. In fact, the accent is real. French is my first language; the accent never went away and it’s getting worse as my hearing deteriorate. I like to write in part because I don’t have much of an accent in writing. Got it?

I found out recently that the French national debt to GDP ratio is about 85. That is, French citizens, as citizens, owe 85 cents for every dollar they earn in a year. The debt is a cumulative total, of course, And “national debt” refers to what’s owed by the national government of a country. The private debt of the citizens of the same country is an unrelated matter. Another way to say the same thing is that, should you reduce the national debt of your country down to zero, it wouldn’t help you directly with your personal credit card balance. (It might help you indirectly to some extent because you wouldn’t be in a position anymore to compete with the federal government for credit. This competition raises interest rates.)

The national debt also does not include the debts of states and local governments. In this country, the aggregate of these non-federal government debts is also high because of our decentralized structure. Let me say it another way: The national debt, associated entirely with the federal government, is a relatively small fraction of the total debt US citizens owe by virtue of the cost of their overall system of government. It’s relatively small as compared to the same quantity for France, for example. The French national debt includes most sub-debts that would be counted as state debt and local debt in this country. Accordingly, the French national debt is overestimated as compared to ours. If French accounting were like ours the French national debt would be considerably less than 85% of GDP.

Well, you ask: What’s ours, our national debt as a percentage of GDP? Fair enough:

It’s about 100% of GDP, 15 points higher than the French percentage. We are closer to Greece than France is in that respect.

This pisses me off to no end. The divergence between the directions taken by French society and American society occurred during my adulthood. I witnessed that divergence in concrete terms through my French relatives and directly, through my visits to France, and the occasional longish sojourn there, and so forth. So, let me summarize what I saw in France during the past thirty years.

The French eat better than Americans. They always did but their food could have become worse under “socialism.” Even the children who stay at school over lunch eat good meals for a nominal sum. School lunches in the average French town taste better than the fare of a better-than-average American restaurant, in my book.

The French have longer vacations than Americans. That’s all of them, all Americans, including civil servants and bricklayers’ union members. Five weeks is the norm in France. You read that right: 5!

In many French municipalities – I am tempted to say “most” but I have not done the research – children go skiing at public expense one week each year or more. There are also many subsidized “initiation to the sea” summer camps.

It’s also true that Americans have bigger houses and bigger cars than do French people. Personally (and I am a kind of small expert on the topic) I think French universities are not nearly as good as their American counterparts. I mean that the best French universities don’t come close to the best American universities and that the worst American universities maintain standards absent in the worst French universities. Elementary and secondary French schools seem to me to be about equivalent to American schools. They also turn out large numbers of functional illiterates. But, there is more.

The French have universal health care that is mostly free. It hurts me a lot to say this but I saw it at work several times, including under trying circumstances, and the French national health care system performed fine every time. (There is an essay on this topic on this blog, I think.) I know this is only anecdotal evidence but the raw numbers don’t contradict my impression. In point of fact, French males live two years longer than American men. I realize this superior longevity could be due to any number of factors (except genetic factors, both populations are very mixed). However, it is not compatible with a truly horrendous “socialized medicine” system. And, yes, I too would like to credit Frenchmen’s longevity to regular drinking of red wine but it’s not reasonable. If it were, a health cult of red wine would have been launched by the wine industry in this country a long time ago.

The French collectively spend about half as much as we do on health care.

I can hear my virginal libertarian friends howling: The French can afford all those tax-based luxuries because they are less likely than Americans to become involved in military ventures. (And I would add, they cut out earlier, as they are now doing in Afghanistan.) But the numbers have to jibe: In the past thirty years, the US never spent more than 5% of GDP on the military. In most years, it was under 4% . Both figures include incompressibles such as veterans’ benefits that aren’t really spent to wage war, now or in the future. Those costs, about ¼ of the military budget in the average year, would be more or less made up elsewhere if they did not exist. So, it seems to me that higher military budgets cannot begin to account for the fifteen percentage points the French have over us in their national debt relative to GDP.

I am a small government conservative who would call himself a libertarian if I did not see the word as associated with pacifism. Yet, I cannot look away from these simple facts. I wish I had an answer to the quandary they pose but I don’t. Any ideas?

The Institutional Foundations of Antisemitism

Mark Koyama Culture, History , , , , , , , , , ,

Antisemitism has returned to mainstream politics in Europe and America. One fundamental misconception about antisemitism is that it is simply another form of racism. Thus Jeremy Corbyn responds to charges of antisemitism with “ ‘I’ve spent my whole life exposing racism in any form”. But of course, Corbyn is, at the very least, an enabler of antisemitism (and there is evidence he holds antisemitic prejudices himself — see here).

Why is antisemitism different from other forms of racism? And what makes antisemitism unique. When Noel Johnson and I began writing Persecution & Toleration, we didn’t envision antisemitism returning to prominence, but I believe our analysis sheds important insight on the institutional foundations of antisemitism.

Continue reading →

It’s no longer the economy, but we are still stupid

Nick Cowen Culture, Economics, Links, Politics , , , , ,

‘Motivated Reasoning, Public Opinion, and Presidential Approval‘, an interesting new paper forthcoming in the journal Political Behavior (summarized here), by Kathleen M. Donovan, Paul M. Kellstedt, Ellen M. Key, Matthew J. Lebo finds that support for sitting presidents has become increasingly misaligned with national economic expectations. Rather than being a sign of voters realizing that presidents play little role determining economic performance, they attribute this to increased partisan polarization.

I think this is a compelling account. All I would add is a potential causal mechanism. My current favorite dimensions for analyzing democratic trends in the developed world is demography. Voters are ageing. When retired, they tend to have much less direct involvement with the productive economy than when they were working. On average, the elderly are quite rich and living off entitlements they have acquired during their working lives. So they are both less reliant on current economic opportunities and less knowledgeable of them. This means their personal costs of partisanship, relative to good policy, is lower than it used to be. And this is what lets all the culture-war nonsense creep into people’s decision functions.

Bolsonaro, Carnaval, Golden Shower, Reason

Bruno Gonçalves Rosi Culture, Current Events , , , , , , , ,

Sao Paulo. Carnival. Two men climb on a newsstand, bus stop, or truck. The video is not so clear. What is clear is that they are half-naked. What they do next is pretty graphic, and I don’t feel comfortable describing it here. Bolsonaro, the president of Brazil, makes a tweet about what happened. Several websites, including Reason, criticize Bolsonaro.

The fact that several sites on the left criticize Bolsonaro does not surprise me, but I am disappointed with Reason. But let’s get some facts. Carnival is indeed a traditional party in Brazil, at least in some cities like Rio de Janeiro and Salvador. But for many people, Carnival is just a cultural imposition. Maybe the editors of Reason do not even know it, but Carnival is an official holiday. That is: even if you want to work, you are duly prohibited from doing so. Another thing that the editors of Reason forgot to report is that Carnival is largely sustained with public money. That is: like you or not, the party is partially sustained with your money raised through taxes. Another part of the money comes from organized crime. Yes. Carnival is partially supported by the state and partly by organized crime. Only a minimal part of the money is voluntarily given away by people interested in attending the party. That is: for a good anarcho-capitalist, Carnival is almost completely sustained by organized crime.

I grew up in a neighborhood in Rio de Janeiro where the carnival blocks start early and end late. Several streets are closed. My right to come and go is severely impaired. Even if I close all the windows (while it is 100º F outside), the noise of the music still prevents me from even thinking. I always think about people who are sick and need to rest. Or that they are elderly. Or families with small children. Carnival is the least libertarian party I can imagine: your participation is not voluntary. In fact, one of the most famous Carnival songs has very telling lyrics: “who does not like samba, good people are not. It’s bad in the head or sick on the foot.” To be clear: if you do not like samba you have a taste different from mine and we will respect ourselves? Not! You’re a bad person!

So, it is against this party that Jair Bolsonaro manifested himself. I’m proud of my president. One thing that Bolsonaro certainly did not do was try to be populist. If he wanted to be a populist, he would have done what all the presidents before him did: sponsor the bread and circus. By stating as he did, Bolsonaro proved that it is anything but populist. Reason has no idea what is going on in Brazil.

As a good libertarian I will say: if you like samba, you have a bad musical taste. Anyway, it’s your taste, not mine. But if you support Carnaval, you are attending a party that harms millions of people. You are not really thinking about your neighbor. And if you call yourself a libertarian and oppose Bolsonaro on this, something is very wrong. Maybe you just have no idea what is going on in Brazil.

Maybe you’re not that libertarian.

Afternoon Tea: Minerva or Pallas Athena (1898)

Brandon Christensen Culture , , , , , ,
NOL art Klimt minerva or pallas athena
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From my main man Gustav Klimt.

Afternoon Tea: The Scapegoat (1854)

Brandon Christensen Culture , , , ,
NOL art Holman Hunt the scapegoat
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Man, I like this one. It was painted by William Holman Hunt, an English painter. Hunt belonged to a school of art that called itself the Pre-Raphaelite Brotherhood. Here is a wiki on the Brotherhood.

Afternoon Tea: The Women of Algiers in their Apartment (1834)

Brandon Christensen Culture , , , ,

From Eugene Delacroix, as requested by Jacques Delacroix (no relation):

nol art delacroix the women of algiers 1834
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Afternoon Tea: Diomedes Devoured by his Horses (1866)

Brandon Christensen Culture , , , , ,
NOL art Moreau diomedes devoured by his horses 1866
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This one is just plain crazy, and it’s by the French painter Gustave Moreau. Here is a wiki on the story of Diomedes, by the way. And here is Barry Stocker on ancient Greek thought.

 

Afternoon Tea: Urvashi and Pururavas (unknown)

Brandon Christensen Culture , , , , , ,

From the great Malayi (India) painter Raja Rami Varma:

NOL art Varma urvashi and pururavas
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Varma was one of the first artists in colonial India to blend Western art with Indian traditions. Urvashi and Pururavas is an old Hindu love legend (wiki). And here is a wiki on Varma.

Here is yet another wiki, on the Malayali.

Afternoon Tea: Ahasver (1910)

Brandon Christensen Culture , , , ,
NOL art Hodler ahasver 1910
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This beauty is by Ferdinand Hodler, a Swiss painter. Rest assured, there’ll be more from him.

Afternoon Tea: Isaac Newton (1795)

Brandon Christensen Culture , , , ,

From the British artist and poet William Blake:

NOL art Blake newton 1795
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I’ve never been a huge fan of English art, but Blake is an obvious exception to the rule when it comes to art out of England. If you expand British art to include its imperial domains, then British art is spectacular, but as for England itself, meh. (William Blake excepted, of course.)

The Paradox of Prediction

Joakim Book Culture, Economics , , , , ,

In one of famous investor Howard Marks’ memos to clients of Oaktree Capital, the eccentric and successful fund manager hits on an interesting aspect of prediction markets and probability alike. In 1993 Marks wrote:

Being ‘right’ doesn’t lead to superior performance if the consensus forecast is also right. […] Extreme predictions are rarely right, but they’re the ones that make you big money.

Let’s unpack this.

In economics, the recent past is often a good indicator for the present: if GDP growth was 3% last quarter, it is likely around 3% the next quarter as well. Similarly, since CPI growth was 2.4% last year and 2.1% the year before, a reasonable forecast for CPI growth for 2019 is north of 2%.

If you forecast extrapolation like this, you’d be right most of the time – but you won’t make any money, neither in betting markets nor financial markets. That is, Marks explains, because the consensus among forecasters are also hoovering around extrapolations from the recent past (give or take some), and so buyers and sellers in these markets price the assets accordingly. We don’t have to go as far as the semi-strong versions of the Efficient Market Hypothesis which claim that the best guesses of all publicly available information is already incorporated into the prices of securities, but the tendency is the same.

  • if you forecasted 5% GDP growth when most everyone else forecasted 3%, and the S&P500 increased by say 50% when everyone estimated +5%, you presumably made a lot more money than most through, say, higher S&P500 exposure or insane bullish leverage.
  • If you forecasted -5% GDP growth when most everyone else forecasted 3%, and the S&P500 fell 40% when everyone estimated +5%, you presumably made a lot more money than most through staying out out S&P500 entirely (holding cash, bonds or gold etc).

But if you look at all the forecasts over time by people who predicted radically divergent outcomes, you’ll find that they quite frequently predict radically divergent outcomes – and so they would be spectacularly wrong most of the time since extrapolation is usually correct. But occasionally they do get it right. In hammering the point home, Marks says:

the fact that he was right once doesn’t tell you anything. The views of that forecaster would not be of any value to you unless he was right consistently. And nobody is right consistently in making deviant forecasts.

The forecasts that do make you serious money are those that radically deviate from the extrapolated past and/or current consensus. Once in a while – call it shocks, bubble mania or creative destruction – something large happens, and the real world outcomes land pretty far from the consensus predictions. If your forecast led you to act accordingly, and you happened to be right, you stand the make a lot of money:

Predicting future development of markets thus put us in an interesting position: the high-probability forecasts of extrapolated recent past are fairly useless, since they cannot make an investor any money; the low-probability forecasts of radically deviant change can make you money, but there is no way to identify them among the quacks, charlatans, and permabears. Indeed, the kind of people who accurately call radically deviant outcomes are the ones who frequently make such radically deviant projections and whose track record of accurately forecasting the future are therefore close to zero.

Provocatively enough, Marks concludes that forecasting is not valuable, but I think the bigger lesson applies in a wider intellectual sense to everyone claiming to have predicted certain events (market collapses, financial crises etc).

No, you didn’t. You’re a consistently bullish over-optimist, a consistent doomsday sayer, or you got lucky; correctly calling 1 outcome out of 647 attempts is not indicative of your forecasting skills; correctly calling 1 outcome on 1 attempt is called ‘luck’, even if it seems like an impressive feat. Indeed, once we realize that there are literally thousands of people doing that all the time, ex post there will invariably be somebody who *predicted* it.

Stay skeptical.

Afternoon Tea: Female Organ Player (1885)

Brandon Christensen Culture , , , ,
NOL art Klimt female organ player 1885
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From Gustav Klimt, still my favorite artist of all time…