Monday, January 20, 2020

Diversification

I was interested in calculating what the portfolio volatility would be for a portfolio given various correlation assumptions, and also the number of assets. So I took two portfolio of the S&P500 in two very different years: 2008 and 2017. The VIX had one of its highest average levels in 2008, at 31.5, while its lowest in 2017, at 11.0.  Because I'm interested in low vol portfolios, I took the stocks with below-average volatility from the prior year.  The statistics on these 250 stocks were as follows:

Lowest 250 vol stocks in S&P500

2008
2017
AvgVol
60%
19%
AvgCorr
0.48
0.14

Both total volatility and correlation were about 3 times higher in the crisis year of 2008. This is because the total market volatility was so much higher. One could say correlations rise in bad times, but one could also say that mathematically, given a 'one-factor' model (the market), if the market has higher volatility its assets will have a higher correlation.

The equation I presented last week calculates portfolio volatility as follows:
  • Volatility (n assets, correlation c)=sqrt(avgVol^2/n + (n-1)/n*c*avgVol^2)
Here c is the average correlation, so the average of the correlation matrix off the diagonal. Volatility and correlation are taken from the same period here, that in the years 2008 and 2017.

In the equation, most of this diversification benefit happens rather quickly, with 90% of it coming after n=15. Given many people look at multiple factors, not just the market factor, this could make this formula less relevant. So I took all those 250 stocks and created thousands random of sub-portfolios to get an estimate of the actual, or empirical, volatility. 

Comparing this to the formula generated the data in the above chart: they are basically identical. You only see two lines because there are two sets of lines that overlap. In both scenarios, the 10 asset portfolio had insignificantly higher volatility than the 250 asset portfolio. While the correlations are quite different, generating different levels of diversification as a function of the number of assets, they both almost perfectly matched the simple formula.  

Bottom line: 10 assets really is enough.  


Wednesday, January 15, 2020

Helmut Schoeck's Envy

Helmut Schoeck published Envy in 1966. It remains one of the few systematic treatises on the subject and highlights a profound aspect of human nature. Envy is of keen interest to me because ever since I wrote my dissertation on the low volatility effect back in 1994, I have been interested in why. In standard economic theory, individuals are assumed to maximize their utility, which is independent of other's wealth. With this assumption, you get a risk premium, and it should be ubiquitous. The risk premium is actually quite rare, limited to a couple of asset classes (though not within them). For more on envy in economics, see here.

Envy is eternal and ubiquitous, but also taboo. This is because envy is one of those few vices that is neither an excess or deficit of virtue, in that cowardice and recklessness are a deficit and excess of the virtue courage. The literature defending the rationality and value of emotions usually excludes envy as irredeemable.

Thus, no one candidly admits to being envious. We really do not even have a word for sincerely saying, 'I envy John,' in that one can only say this in a way that implies a benign, emulative, or admiring variety of envy, rather than the invidious form.  We do not even like to analyze it very deeply.  For example, Schoeck notes that Herman Melville's Billy Budd is about a good man who arouses the envy of the ship's master-at-arms, motivating many spiteful actions. The book's theme is clearly about envy, yet of the many written analyses of the novel they rarely mention envy, and never focus upon it, but rather highlight evil or injustice

Ordinary language tends to conflate envy and jealousy, yet they are distinct emotions. A man can be jealous of another man because of their mutual affection for a woman, and here the rival is fungible and the beloved is not fungible. In envy, it is the other way around, resenting a rival, not because of a specific woman, but rather, that he can obtain a woman of that type.

Most observers of envy, from Aristotle on, have noted it is felt toward those with whom the subject perceives himself as in competition. We only feel envious of our peers, or who we consider being our peers. Thus, we do not envy a world-class athlete, in that we know we are simply not in that class of people. In medieval times you had peasants, knights, lords, and a king, while in Ancient Greece you had slaves, freedmen, metics, and the upper class. Envy was restricted to one's class and perhaps those in the class above.

Essence of envy

Schoeck presents some theories for the origin of envy, not all convincing. First, from our competition for parental resources. As the runt of the litter gets fewer parental resources, or the weak bird is left to naked fratricide in the presence of the mother, all children wish to dominate their parent's attention out of self-preservation. Yet this is the definition of jealousy, in that the instinct presupposes a non-fungible desired object: parental attention. Another cause mentioned is in keeping society well-functioning. In his view, without envy, people with power would be haughty and overbearing. Yet, simple reciprocal altruism would seem to be at play, in that a successful alpha baboon realizes that if they are too overbearing, their underlings can and will kill him (see Frans de Waal).

Another interesting cause of envy is the ignorance of chance. The most envy-ridden tribes do not possess a concept of luck. Everything is determined by spirits, fortune, or the 'evil eye.' In primitive societies, the success of others is equated with the betrayal of the tribe, because it could have only have occurred by leveraging evil spirits or stealing from others. A certain degree of rationality, or at least a freedom from a magical view of things, is required before the envious man can fully realize that the man he envies does not possess something which, but for the possessor's existence, he, the envious man, might otherwise have.

I see envy as the result of our base, animalistic, status-seeking human nature. When we focus on life on this Earth, we want status, and what that implies, justification. Only a high status can prove, to ourselves and others, that we are good, important, and admired. Status, alas, is in fixed supply. While this constraint can be ameliorated by the concept of having many status silos--football, math, Fortnight--ultimately there are a limited number of positional goods: lakefront property, the 'best' cars or vacations, and most importantly, attractive mates.

Note that our greatest suffering is not caused by physical pain or privation, but rather when the will of another inflicts it. This is because random accidents do not reflect on us as individuals, as they happen by chance to everyone. But suffering caused by another implies inferiority, in that the tormentor had the ability to force their will against ours. Our status is diminished when a malefactor successfully torments us, as it highlights our impotence, and thus, lack of status.

Utopia and Envy

The completely just society where envy is absent is doomed because it is based on the false premise that once there is justice, there will be nothing left for anyone to envy. This situation can never occur because man inevitably discovers something new to envy. Further, by raising envy to the status of virtue (as righteous resentment over injustice), political entrepreneurs are motivated to reveal new inequalities that are to blame for people's impotence. Thus we now have the virtue of intersectionalism, where a transgendered black man is more righteous than a cis-black straight man.

There are so many ways to align individuals at some point we realize the ultimate minority is the individual. Yet, when envy is elevated it inverts all values that compete, resulting in the de-individualization of individuals in the name of equality. Simple utilitarianism implies that justice for many is more important than for any one person, and so what counts are the superficial categories we consider 'diverse.' The individual is unimportant.

Most utopias presume that reducing inequality will eradicate envy, though in fact, the opposite is more certain. Utopias are places where people are so equal that they will only have less than others by conscious choice, the way I have less strawberry ice cream than my neighbor because I prefer chocolate. A sad fact of life is that equality of opportunity comes to grief because individuals do not all have the same ability to make use of their opportunities with comparable success. This is a more bitter experience than one for which one can blame others rather than one's self.

The most egalitarian societies, hunter-gatherer societies, actually have more envy that less egalitarian ones. This isn't obvious because their lack of wealth seems to imply they are not greedy, and thus, selfish like Westerners, but this is just wishful naïve thinking. There is no tribe where social harmony prevails because each man has as little as the next. For primitive egalitarian societies, envy is both a cause and an effect. Schoeck notes that such communities tend to have no conception of luck, and so see any objective relative prosperity as a sign of theft or alignment with evil forces. Schoeck discusses Native American, African, and Polynesian tribes, and note the strong social pressure for anyone better off to be lavish in hospitality and generous with gifts. He knows that if he fails in this, 'the voice of envy will speak out in the whispers of witchcraft' which would make his life very unpleasant.

Envy prevents people from accumulating the wealth needed to create technology, and thus the free time needed to create art, science, literature, and philosophy. A lack of differentiation makes more apparent one's inadequacies, in that some will be more clever, athletic, or brave. When people are made equal in endowments, the only reason for not attaining a higher status is within us, our character, our essence.

In earlier times, the upper classes were different in many objective ways. An elite's risk of starvation was insignificant compared to the peasant, reflected in the fact that they were 10 centimeters taller than a commoner in 18th century England; they could read, sometimes in foreign languages, which implied a great deal of useful education. Today those barriers are gone. Almost everyone knows how to read and write, the basics of mathematics and history, the poor are fatter than the rich, and height disparities between individuals of the same race are absent.

 Equality Increases Envy

Our unprecedented wealth and comfort should have led to less envy, in that we all have access to the knowledge that brings self-actualization and self-esteem, but instead, it has lead to greater envy. The poorly paid op-ed writer of your local newspaper considers themselves not just equal to the rich, but better informed and more articulate, as proven by their many eloquent and insightful essays. Their lack of status motivates envy because they feel just as worthy, as competent, as those who are doing better. David Brooks highlighted this in his book Bobos in Paradise.

Consider our very best intellectuals. One might think they have acquired wisdom, and so a sense of self-actualization and self-esteem. Yet professors in the social sciences are an unhappy lot, reflected in Sayre's law: 'academic politics is the most vicious and bitter form of politics, because the stakes are so low.' This is because only those at the top of each specialty have the power to confer prestige and honor on favored individuals, subjects, and style of discourse. They influence taste, favor certain methodologies, and define the boundaries of their disciplines. To be chief consecrator is the intellectual’s dream, and it only can be apportioned to a few.

The idea that men are intrinsically equal in every admirable trait, combined with the idea that all we need is nourishment, warmth, and education, is simply wrong. Sure, to be engaged in a desperate struggle for food and shelter is to be wholly free from a sense of futility, but such environments are rare for anyone reading this blog. The desire for praise is more imperative than the desire for food and shelter. Praise from the praiseworthy is beyond all rewards, why we are more hurt by the lukewarm approval of men we respect than the contempt of fools.

Social justice justifies not having many things so that others may not have them either. In the politics of envy, all that is needed is to promise the envious the destruction or the confiscation of assets enjoyed by others; behind that, there is no need to promise anything constructive. Thus it really does not matter how the government spends punitive taxation. As shown in primitive societies, when creative ambition is punished, you get stasis, not just in economic productivity, but everything else: art, literature, science.

Resentment is held to be a potentially morally justifiable emotion, whereas envy former is not.  Resentment may come from real injustice, such as slavery. Yet good reasons for resentment are few, edge cases, while much resentment comes from a desire to blame others for our inadequacies. A passionate obsession with inequality is an attempt to compensate for a lack of meaning in one's own life, and you can never get enough of what you don't need to make you happy.

It is easy to lie to ourselves about our motivations, creating a bad equilibrium, as poor hunter-gatherer societies show. These are not idyllic communes free of self-interest, but rather, ignorant and envious cultures. Social flourishing is most fruitful when envious considerations unencumber man's creative faculties. Envy is something that should be discouraged. Pride is a sense of worth derived from the perceived appreciation of others, while self-esteem derives from the belief that we are profoundly appreciated, as a unique individual, by those we profoundly appreciate. Note that such a feeling comes out of a relationship of individuals, not some aggregate metric of status.

While there is nothing wrong with having wealth or wanting more, this should be of secondary importance, and wisdom is all about priorities. We should be encouraged to appreciate excellence in others to build excellence in ourselves. This takes faith, in that we have to believe our excellence in character, even if not reflected in the current status hierarchy, is appreciated by someone we admire, if not now, then in the future.

Sunday, June 02, 2019

Median Anonymous Crypto Exchange Costs 1.5%, Sometimes 100%

Gemini's Order GUI
Many of the big exchanges like Gemini or Coinbase do not have lots of alt-coins, and if you don't have an account the process of creating one can take days if not weeks. They also can make it hard to place orders, as Gemini's default trade mode is incredibly infantile. Further, these exchanges put up significant hurdles for market makers, and the only thing that prevents collusive tactics is free entry. Regulators are happy to prevent competition if they can make sure they have control over who gets to trade what.  Nonetheless, when you can trade directly the markets are pretty tight for small size, under 0.1% bid-ask spread for trading 1 bitcoin.

Coin shifters can be used anonymously and instantly for most traded crypto coins, which is very convenient. Thus I did not include ShapeShift, which regrettably, though understandably, yielded to regulatory authorities last year and requires a full KYC (regulators gave them no choice).

I sent bitcoin amounts of between 0.3 and 1.0. The costs were around 1.5% for the major shifters. While CoinSwitch does seem significantly better, around 1.05%, there was some significant variability, so this could just be sampling error around an equilibrium cost of 1.5%. Either way, you should expect to pay--all in--much more than the 0.5% often advertised. This really isn't so bad, because Gemini charges 1%, and it would be nice if one of these shifters actually said that their total cost is 1.5%, because it would signal honesty.

Cost of Trading BTC to ETH
BTC amounts 0.3 to 1.0. Cost here is defined as the difference between the market price at the time I sent coins and the implied price from the actual number of coins I received.

CoinShifter count Hours Cost stdev
CoinSwitch 4 1.5 1.05% 0.40%
Changelly 5 1.1 1.39% 0.17%
MorphToken 4 2.3 1.47% 0.05%
Flyp.me 2 0.7 2.22% 0.29%
n.exchange1 inf 100%

Transactions take about 1-2 hours, and depends on blockchain traffic as expected.

Flyp.me was quick, but they cost significantly more than alternatives, and they only allowed up to 0.3 bitcoin per transaction.

Many post explicit fees, usually around 0.5%, but these are really a distraction because most of the money brokers make is not explicit. This often confuses people, as when E-Trade or some other broker tells customers they pay only 10$ a trade (or even zero) because most of the cost of trading is in the bid-ask spread. A broker either has specialists making markets off of their customer flow or has sold their flow to specialists making markets. In equity markets, while I was trading at a large hedge fund and analyzed over a billion USD in trades, I found the explicit fees were about 1/4 the cost of trading on small orders (those without market impact, ie, about the size of the top-of-the-book size).

The only way to see how much an exchange charges is to compare the average execution price to the market price at the time of the order, as this combines the explicit and implicit fees. Once you send a coin to a coin shifter and it appears on the blockchain, the shifter can be confident it is getting that coin because the size of these orders is usually below 2 BTC, which is too small to be worth engineering a malicious double-spend. Thus, at that time the shifter can then make the offsetting market trade certain they are hedged, and so that is the time I use to benchmark my fills.

n.exchange was the only one to simply keep my bitcoin. N.exchange has acknowledged my trade, and I have checked in every couple of days to inquire on its status, and they keep telling me the servers are undergoing maintenance. It's been over two weeks, and there's no message on their main page about this issue.

n.exchange highlights the importance of trust on the blockchain. Though anonymity is an important crypto principle, reputation is still important. It is costly to learn whether someone is trustworthy, as invariably trades on the blockchain are not done via secure atomic swaps, but rather, you send bitcoin (etc), and hope they send something back. The process of learning if they are scammers takes a lot of time, and occasionally you lose all your money.

Tuesday, April 30, 2019

Convexity Explains the High BitMEX ETH Funding Rate

BitMEX offers swaps that make it easy to lever a long or short bitcoin (BTC) and ether (ETH). The main reason it trades so much is that they are based outside of US or EU control in the little archipelago-nation of Seychelles, and also that it transacts only in Bitcoin. This combination makes it difficult for regulators to attack.

Their swap contracts are like futures contracts without expiry dates. A futures market trades off of a futures price, which is different than the spot price and its difference from the spot price is called the basis, where basis=spot - futures. The basis can be quite large in markets that are difficult to arbitrage, as sometimes the futures/forward prices are quite different than spot markets, and this difference can be explained as a risk premium, though this is just a catch-all term for anything outside of simple interest rates. A swap trading off of a spot price captures this basis via differential funding rates for the long and short. Thus, if the spot rate is $100 and the futures price in 1 month is $110, in a swap this would show up as a 10% monthly funding rate paid by the long to the short, which is implicitly what occurs in the futures market as a contract rolls towards expiration.

At BitMEX they call the basis the Funding Rate, and it is applied every 8 hours. Below are the annualized funding rates, by month, for the BTC and ETH swaps.


These rates imply that if you moved your BTC position into a long BTC swap at BitMEX, you would have added an extra 15% (annualized) to your return with little effort. Even better, the +45% ETH funding rate seems to imply arbitrage, wherein you could have hedged a long ETH position with a short position in the ETH swap, locking in a fat 45% annualized return while avoiding that entire Aug-present ETH price decline.

I asked people in Reddit their best explanation, and the answers were related to sentiment or simply a market imbalance. Yet there's a futures contract for the ETHBTC contract, and the basis there is quite small, about 5% annualized, which is inconsistent with this explanation. Further, ETH and BTC are highly correlated, about 90% using 2019 data, so it is implausible to think these two assets would have such radically different risk premia.

The trick is to adjust the funding rate for the BTC~ETH covariance in order to capture the convexity of USD returns. With this adjustment, the swap funding rates are about the same. This reminds me of the convexity adjustment in eurodollar futures is needed to compare eurodollar rates to interest rate swap rates due to the fact that eurodollar futures are settled daily while an interest rate swap is settled only at expiration. The convexity adjustment became well-publicized in the mid-90s, but for a good 5 years traders were oblivious, and while there was sufficient liquidity they did not make this convexity adjustment, generating arbitrage profits for a couple of savvy banks (you needed direct access to libor rates, so as an individual you could not arb this). In contrast, here it seems markets have always priced for this while it is still not widely understood or documented.

BTC Swap Payoff

Let us ignore the funding rate and look just at the profit generated by the asset price for a BTCUSD swap.  At BitMEX, the long profit is generated in BTC as follows for an entry price at time t, and  exit at t+1:

  • BTCswap Profit (in BTC)=Notional*[1/BTC(t) - 1/BTC(t+1)]
Note the seemingly backward ordering of the prices. This is because the BTC notional amount is in USD, and as we have a USD position, we have to ultimately translate that back into BTC.  Thus if you are long $1000 in the BTC swap, your USD profit would be

  • BTCswap profit (in USD)=$1000*[BTC(t+1)/BTC(t)-1]
As you are getting paid in BTC, however, you need to make the final adjustment of this into BTC, so you add this final price to payoff function:

  • BTCswap profit (in BTC)=$1000*[BTC(t+1)/BTC(t)-1]/BTC(t+1)
Applying some algebra gives the BitMEX payoff function:

  • BTCswap  profit (in BTC)=$1000*[1/BTC(t)-1/BTC(t+1)]
Thus, the BTC swap formula replicates the intuitive sense in which your notional amount is invested in BTC. The PNL is nonlinear in BTC, but linear in USD, as shown below:



ETH Swap Payoff

In contrast, the BitMEX ETH swap uses a different formula that BitMEX CEO Arthur Hayes notes is "attractive to speculators who wish to have exposure to a foreign asset, but without the corresponding exchange risk." This makes little sense because most investors care about their return in fiat, not BTC, and it is inconsistent with BitMEX's BTC swap, which generates a linear return in fiat currency. Most importantly, if you are trading on an asset's USD price the notional should be in USD; if the asset price is in BTC the notional should be in BTC. In this contract, the BitMEX ETH notional is basically in BTC but the asset price is in USD. The ETH perpetual swap is based on a profound misunderstanding of how a Quanto works.

The BitMEX ETH swap is a position defined by the number of contracts times a multiplier (1E-6). This is then multiplied by the difference in ETH's USD price to generate the position payoff. Abstracting from the funding rate, the payoff function for the ETH perpetual swap is:
  • ETHswap payoff (in BTC)=0.000001*#Contracts*[ETH(t+1) - ETH(t)]
To see what this implies, it is best to simply take the payoff function and turn it into USD by multiplying it by the USD BTC price at completion:
  • ETHswap payoff (in USD)=0.000001*#Contracts*[ETH(t+1) - ETH(t)]*BTC(t+1)
Given the ETH and BTC returns are about 90% correlated, this then generates the opposite return pattern to the BTC swap, where the USD return is convex, while the BTC return is linear. For example, if the ETH price rises 10% the BTC price will also probably rise, increasing returns for up movements. The same process works on downward movements to dampen losses. The result is the opposite of the BTC swap, a convex payoff in USD and a linear payoff in BTC.


The USD return can be derived by looking at the initial USD investment, which is the following at time t:
  • ETHswap USD investment=BTC(t)*0.000001*#Contracts*ETH(t)
As return=payoff/investment, the USD return on this ETH position is thus
  • ETHswap USD % return=BTC(t+1)/BTC(t)*[ETH(t+1) /ETH(t)-1]
or 
  • ETHswap USD return=[1+ret(B)]*ret(E)
where ret(B) and ret(E) are the net returns for bitcoin and ether. The expected value of this is 

  • E{ETHswap USD return}=ret(E)+covariance(ret(E),ret(B))
as the covariance(a,b)=correl(a,b)*[stdev(a)*stdev(b)], this covariance term generates a boost to the USD payoff due to the significant ETH~BTC correlation. You can see why it is needed by looking at the convexity in the USD returns, an example of Jensen's inequality. Since June 2017, the volatility for BTC and ETH has been 90% and 118% respectively, with a correlation of 60%, generating a covariance adjustment term annualizes out to be about 64%. This is the return premium of the ETH swap compared to the ETH USD return over that period: 51% vs. 115% (all data reflecting arithmetically annualized returns). Thus if the average ETH return is boosted by 60% via the covariance adjustment, the 45% funding rate implies a comparable -15% funding rate for ETH, just as in the BTC. You can download an Excel sheet showing the math and data here.

A 15% return premium for going long at BitMEX is high, but not insanely so, and not without risk. The rate bounces around, and BitMEX could be hacked or shut down by regulators at any time, so I think the 15% funding credit longs get is fairly priced.

There are two qualifications. First, it neglects the fact you need to buy bitcoin to enter into them, and so you are essentially long the notional amount of bitcoin as well. Secondly, given a total return is essentially a geometric return, while an arithmetic return maintains a constant USD notional each period, one has to rebalance their position each period to generate the arithmetic return, so investors would need to adopt such an approach to generate the arithmetic return (see here for difference).

Conclusion

The BitMEX formula is poorly conceived: the swap has a BTC notional and references a USD price creating a convex USD payoff. Investors are forced to not only take a position on the future move in ETH, but also the ETH~BTC covariance. I understand why it is so popular, as it is very difficult to put on such a position hassle-free anywhere else, yet BitMEX should offer something with a linear fiat payoff like their BTC swap, as I think this would be even more popular. This could be done by having the BTC notional contract trade on the BTCETH price; alternatively, they could add a BTC return adjustment to make the USD return linear. Either approach would remove the importance of estimating the covariance term, which is a distraction for most investors, and also one that few really understand.

Wednesday, March 13, 2019

Antifragility is just Hormesis (to the extent it works)

In Nassim Taleb’ book Antifragile he emphasizes that ‘if you see a fraud and do not say fraud, you are a fraud,’ I am thus compelled to note that Antifragile is a fraud because its theme is based on intentional misdirection. The most conspicuous and popular examples he presents are also explicitly mentioned as not the essence of antifragility. Indeed, incoherence is Taleb’s explicit strategy, as the Wikipedia entry on Antifragility notes Taleb presents his book in a way to make it difficult to criticize.

I bring this up because last month I was listening to a Joe Rogan podcast where they mentioned hormesis, the concept that small amounts of a toxin or stressor strengthen an organism. The guest noted hormesis was discovered in the 1950s when researchers noticed a little bit of herbicide paradoxically makes plants stronger. Actually, this phenomenon was found back in 1888 concerning yeast, though the basic idea is probably timeless, in that everyone understands exercise strengthens muscles while immobilizing a limb after an injury leads to atrophy, yet, just like a toxin too much stress causes problems. A glass of wine a day is a tonic, too much leads to cirrhosis. The term Mithridatism comes from King Mithridates (160 BC) self-administering small amounts of a toxin to build up his immunity, so this is a very old idea. 

tweeted that Taleb thinks he invented hormesis, whereupon Taleb quickly noted that antifragility is not hormesis, and Antifragile explicitly mentions hormesis and its 1888 discovery, as well as Mithridatism. A snippet of his Twitter rebuttal is here. Tweets are not the place for snarky subtlety. My point was that far as antifragility works, it's hormesis, in spite of Taleb's qualification that "hormesis is a metaphor" for antifragility. This got me wondering how such a contradiction happened.

Taleb states his neologism antifragility is "beyond resilience or robustness." He defines antifragility more precisely as "a convex response to a stressor or source of harm, leading to a positive sensitivity to increase in volatility." Thus hormesis is not an example of antifragility, because, in the parlance of finance, hormesis is like increasing the value of a portfolio by reducing one’s beta, while antifragility is increasing the value of a portfolio by increasing its gamma. Gamma is a measure of convexity, the signature feature of a put or call option, and in uncertain environments, a higher gamma leads to a higher value.

The common takeaway of Antifragile, however, is simple resilience. For example, in Jonathan Haidt's book the Coddling of the American Mind he credits Taleb’s concept of antifragility for arguing that protecting students from ideas they find offensive leads to them becoming more fragile, anxious, and easily discouraged. Actively confronting ideas we don't like makes us tougher and smarter, in that as JS Mill wrote, ‘he who knows only his own side of the case knows little of that.’ Haidt's book mentions unstructured play for children, the immune system, and exposure to peanuts as examples of Taleb's concept of antifragility. Wikipedia’s entry on antifragile gives as its primary example that of bone density being strengthened by exposure to stress. These are all examples of hormesis.

Convex Payoff
If you own an option you have positive convexity and benefit from higher volatility; you are long volatility (aka long vega). It has long been known that financial options, especially out-of-the-money put and call options, have poor average returns. A good example is provided by VXX ETF (reissued recently as the VXXB), which is long vega and loses money with about the same Sharpe ratio as the SP500 index. Being long vega is like shorting the market, good in bad times, but over the long run a bad investment.

Thales
Taleb is aware of this and states that good antifragile things are not financial options because they "are sold by someone," but rather real options, which he thinks are free: "we don't pay for options given to us by nature and technical innovation." His prominent example here is Thales of Miletus. Aristotle gave us the story that Thales secured the rights to wine presses at a relatively low rate, which is an option: he had the right, not the obligation to use the wine presses. When the harvest proved to be bountiful, and so the demand for the presses was high, Thales charged a high price for their use and reaped a considerable profit. Taleb states the key to Thales's fortune was his awareness of his 'lack of knowledge,' in that as he owned an option he enabled himself to benefit from uncertainty.

I do not have data on wine presses circa 600 BC, but currently, such options are priced. For example, in futures markets, there is a thing called the basis, the difference between the future and cash price of a good reflecting the yield on the asset vs. the opportunity cost of money (ie, the interest rate). One of the components of that basis is the convenience yield, in that if there is a shortage, having the actual commodity will have a great value. For goods subject to shortages (eg, wine presses), this increases the cash price over the future price because having the good on hand can be very valuable in a crisis. William Easterly has argued that Western countries dumping grain on African countries during shortages deprives farmers of the essential revenue for many farmers, the profit that pays for merely breaking even during normal times, discouraging endogenous markets. Spikes in demand are a large part of any asset owner's income. Simple awareness of a 'lack of knowledge' about future demand is not helpful, because it presumes the seller assumes the convenience yield or option value is zero, and that's unlikely. 

Taleb gives other examples, for instance: avoiding doctors, having different alternatives on vacation or for dinner, the ability to switch jobs, a rent-controlled apartment, or being married to an accountant but an occasional fling with a rock star. To the extent these options are desirable, they are not underpriced, and certainly not free. People realize this, which is why they are rarely mentioned as examples of antifragility by Taleb's many supporters. The bottom line is that things with convexity are too costly in general because people love lottery tickets; convexity is not the essence of any antifragile example because it is generally too costly. 

Another misleading application is in biology or economics, where populations or markets that have had to withstand more competition and external variability dominate those with benign environments. A bacteria population in the lab loses its ability to withstand stressors, an industry protected from new entrants loses its ability to compete when technology changes the game, or an industry protected against failure becomes bloated and less robust. Systems that allow or even encourage failure thrive relative to those that protect its members from failure. In economics, the basic idea of exiting losing businesses is perhaps the most crucial advantage of the free market over socialism. Failure strengthens the herd, whether animals or firms

Taleb states that his notion of antifragility is behind the following: "evolution, culture, ideas, revolutions, political systems, technological innovation, cultural and economic success, corporate survival, good recipes, the rise of cities, cultures, legal systems, equatorial forests, bacterial resistance." Success within these domains comes from looking at the competitive success of groups benefiting from hormesis vs. those insulated from it. Competition leads to the resiliency and efficiency needed to survive.

Back to his definition of antifragile, it is not that the prospering agents are convex to stress, rather that as survivors their progeny takes over the extinct's lebensraum; the dynamic effect of robustness in a system based on survival of the fittest looks like convexity.  Indeed, Taleb notes the property applies to the group, not the individuals: "the surviving cohort is stronger than the initial one—but not quite the individuals since the weaker ones died." So here, like with hormesis, he notes it is a metaphor, not a precise analogy. He is quite aware that such systems are not direct examples of antifragility because the agents that generate convexity at the higher level are merely robust, via hormesis, and their germline exhibits convexity. 

A robust business has to innovate because every business model changes over time. Jeff Bezos notes success takes someone with a stubborn vision yet flexible on details, because without a strong vision one's strategy overreacts to current failure or success, while without flexibility one cannot adapt when things do not work precisely as planned, as they always do. Note here we see a classic example of 'moderation in all things,' where the optimum lies between an excess and deficit.  In contrast, Taleb describes a caricature of vision via his "teleological fallacy" which is the "illusion that you know exactly where you are going." One could go on all day about the inadequacies of strawmen, as Taleb does.

An industry protected from failure or change via union work rules or bailouts removes the micro-instability needed at all levels of a company to develop innovation, robustness, and a healthy familiarity with failure. While some rules and regulations are good, most are merely a pretext for barriers to entry protecting current workers and firms. This is just an argument for allowing stress, and the resulting failures it implies; that is, for hormesis to do its thing.

Becoming excellent first requires a lot of domain-specific hard work, with a focus that enlarges some things while excluding others. Jordan Peterson argues that flow comes from operating at the edge of our competence, with enough mastery to generate satisfaction yet enough novelty to be challenging. To an outsider, such explorations can seem like random tinkering, but for an expert, it is a variation on their unusual intuition. Suggesting that the general strategy of accumulating convex exposures is the key to success is a profound error, as in the difference between the benefit of anger, and anger directed at the right person at the right time and in the right way.

An essential attribute of someone who innovates is their ability to embrace failure. Adversity is a great teacher, why mother giraffes knock their newborns down just after first learning how to stand;  they have to learn quickly on the African grasslands. Embracing failure is easy to say but hard to do, which Taleb acknowledges. Actually, he doesn't explicitly acknowledge this, but as he never mentions why he worked for several banks while he was a trader (blow up?) or the fact that every close friend he mentions in Antifragile is highly successful, suggests he sees failure as a characteristic of unremarkable losers.

Failure will always be costly, and due to moral hazard, no one will sell you a put option on your failures.  In addition to acclimating ourselves to failure, just as useful are the Christian virtues of faith, hope, and love. If you have faith in what you hope for regardless of your economic success and love someone who loves you for who you are, failures under the sun are not so terrible. This allows you to explore more virgin territory so that when the unexpected happens, you might be in the right place at the right time.

There are two ways to generate an option payoff. One is to buy an option; another is via dynamic replication, which involves doubling down a position as it becomes more in-the-money. The outsized success of winners over losers in dynamic systems generates large convexities, but to be a winner, the keys are not buying options, but rather, via resilience acquired through hormesis, surviving long enough to achieve success indirectly via a combination of vision, excellence, and flexibility (obliquity). To describe the essence of this as creating option payoffs focuses people on explicit optionality, as opposed to the optionality that comes via hormesis. Resilience generates outsized winners in dynamic zero-sum competition over time as the survivors take over. This is why everyone mentions examples of hormesis, waves their hands, and hopes no one notices the bait-and-switch.

Promoting the new idea that acquiring options on the next Black Swan is the basis of "our own existence as a species on this planet" is the sort of hyperbole you hear at TED talks. It is the sort of thing bureaucrats love because they are generally too high up to have much domain-specific expertise, and the incoherent but plausible-sounding theme allows one to talk about strategy without actually knowing anything specific. Then you give examples of your great idea that are really something else entirely, and fade to black...






Sunday, July 22, 2018

Robeco's Concise Financial History of Europe

If you like finance and history, you'll love Robeco's "A Concise Financial History of Europe," written by Jan Sytze Mosselaar. A lot of financial firms provide books to clients, and I bet if you visit Robeco in Rotterdam they'll give you one for your plane ride home, which is more than enough time to read it (100 pages, lots of pictures).

It starts with Fibonacci introducing the Arabic number system in 1202, but interestingly the Florentine bankers prevented anything but Roman numerals as late as 1299, and the Medici's didn't adopt Arabic numerals until 1500.

The Florentine bankers Bardi, Peruzzi, and Acciaiuoli, who prospered from 1300 to 1340, left a lot of documentation about their business. The Medicis then dominated from 1397–1494, followed by the Fuggers, and then the Rothschilds from 1800-1900. Interestingly, the Rothschild patriarch created the perfect family business, putting his five sons in key cities throughout Europe, allowing them to arbitrage the different exchange rates common to markets that are not fully integrated.

Last year Bitcoin often traded at prices 5% higher in Korea, but it is difficult to move money in and out of Korea due to explicit laws. The only way to arb this requires a non-formal relationship with someone in Korea, like a brother. You then buy in the US while your brother sells there, settling when you meet for a holiday. That is, only an informal but trusted partnership can arbitrage geographic price disparities caused by legal restrictions because there are no explicit asset and liabilities, just an implicit agreement within a family.

Jan notes the rise of finance from Northern Italy, to Bruges, then Antwerp (1500-1550), and then Amsterdam. As the Dutch East India company was the first traded stock (1602) and prospered throughout the 17th century, Amsterdam was well situated. Amsterdam also reduced the uncertainty caused by the many coins and their various levels of debasement by requiring every transaction above 600 guilders to go through the Bank of Amsterdam, which kept a 100% reserve ratio and cleaned up the system by melting down 'bad' coins.

The English are fond of deprecating the Dutch--Dutch Uncle, courage, date--but they really owe the Dutch quite a bit. The financial center of Amsterdam literally moved to London around 1680, as when Dutch stadtholder William of Orange took over England via the Glorious Revolution in 1688, it gave them not only a Bill of Rights that limited monarchical power, it also created the Bank of England, tradable bonds, and an active London stock market. The start of the Industrial Revolution is often dated around 1750 centered in London, and surely it would have taken a lot longer without those innovations.

There was a simple way to get around the Catholic prohibition on interest. The 14th-century Florentine bankers simply used different FX rates on contracts. As FX rates could fluctuate the bill was not considered a loan and so not usury. Explicit loans were also available, but they would have been more like 'payday' lending today, a business dominated by two outsider groups: Jews who could charge interest to non-Jews, and pawnbrokers nicknamed Lombards, whose name underlies the 'Lombard Streets' found in many financial districts.

Jan mentions several market crashes I had never heard of. The crash of 1340 was perhaps the first international financial crisis, affected by the English default at the outbreak of the 100 years war. An IPO bubble crashed in 1696, destroying 70% of the 140 companies traded in London. Then there's 1720, where the Mississippi Company saw its share price rise 20-fold only to end worthless, and in that year only 4 of the 190 new companies survived. The massive destruction in these early stock markets gives me hope in that I suspect that at least 70% of the new bitcoins and tokens are worthless, but as these prior crashes show, that level of worthlessness does not imply the worthlessness of the blockchains in general. Other crashes mentioned occurred in 1763, 1772, and 1825.

If you ever go to a Robeco presentation, be sure to hit them up for this book.

Thursday, May 17, 2018

Centralized vs. Decentralized Social Welfare Maximizers

Faith in a select group of public servants to maximize social welfare is no better founded than the belief in the supernatural gifts of kings or noblemen. Just as misguided is the idea that good things, as decided by a majority, should be mandated. It should be remembered that our current prosperity and freedom have resulted from unwanted gradual changes in mores related to property rights, which when firmly established sparked the Industrial Revolution. Nobody planned that. Property rights were not created to win wars or eliminate poverty, though they did that as well as many other good things.

In a surprise to every intellectual, a modern economy is based on a system that encourages self-interested agents to do what they think is best, and produces results we do not foresee let alone intend. It is the ultimate decentralized system. In contrast, a system based on state regulations and monopolies (eg, public schools, utilities) is centralized. The push for more centralization dominates the state, academics, and media because these are the people who are good at articulating high-minded policies and are pissed-off that they have to sell them, as in most cases consumers don't want their solutions. 

Looking at blockchain technology, often a developer is asked: how does this help the poor? Indeed, some entrepreneurs emphasize how their new coin helps the poor, as when huckster Roger Ver emphasized how Bitcoin Cash saves babies. Everyone knows that if you help the most vulnerable you help society while helping the rich is suspect in that many see the rich as merely taking from the poor (many see the economy as a zero-sum game, so helping the poor increases total utility, helping the rich does not). The implication is that these technological innovations have to obviously help the most vulnerable in society or they are morally suspect, and laws should discourage if not ban wasteful activity if it siphons resources away from what is most important. That violates property rights.

In the Odyssey Odysseus is offended at being asked if he is a merchant, replying: 'that is a black remark!' In contrast, when asked if he was a pirate, he merely said 'no,' as if that would have been no big deal. Indeed, pirates have courage, and courage is a universal virtue, a key to a flourishing society, while traders have no obvious virtue and merely move things around. Similarly, for several millennia interest on loans was seen as parasitic, as money does not do anything, so someone making money on money seems anti-social.

We now understand that banking and trade do help society, and at their essence, letting people lend and trade arises endogenously when we simply letting individuals decide how to use their property, the essence of true ownership. Individuals find it in their mutual benefit to lend and borrow, to sell and buy from traders. The essence of marketsprice, profits, entry and exit, free choice, competitionarise naturally as a consequence of private property. There are always markets, such as those in WW2 POW camps, because anything that can be owned, such as cigarettes and personal items, can be exchanged and make both people better off. While thoughtful regulations are useful and some vital, it's like the police: you only need a little.

Rationalists like Sam Harris think we can create a world where truths are discovered bottom up, from axioms to theorems confirmed by empirical data. This is very much like the vision outlined in Paul Samuelson's Foundations of Economic Analysis (1947), where he advocated mathematical economic models built on maximizing agents and equilibrium, much like physics. Alas, in economics this approach is useful only in parochial applications, micro, while most macro results can be obtained via the right assumptions, and researchers rarely have qualms with using the assumptions that generate their preferred policies. We can prove what we want, so the key is knowing what result to want, but that does not come from rational inquiry but rather before: we ask our right-brain what makes us feel good about ourselves.

In the 18th century, proto-economists had a theory called mercantilism that emphasized the ability of trade as a means to acquire gold and silver, which was synonymous with national prosperity. There was also physiocracy that saw the wealth of nations derived solely from the value of land agriculture. In those worldviews, many businesses would seem at best orthogonal to social welfare, the way many today view advertising or bitcoin. Yet, that was the past, and via a combination of naivete and pride, progressives think we have it all figured out now [funny how pride was emphasize by the Ancient Greeks and the Bible as perhaps our greatest sin, now rarely].

The phrase `production for use, not for profit', has been noted by such men as Aristotle, Bertrand Russell, and Albert Einstein, and underlies the ever-present notion that economic decisions would be better served by someone maximizing social welfare instead of their own self-interest. It all seems so simple and minor, just requiring individuals make sure they use their property in a way that advances society’s interest. The problem with this is not what, but who. Who decides what is in society's best interest? What are the incentives for those in charge of top-down direction?

The problems with centralized social welfare helpers include the following:

1. No one maximizes social welfare.

It would be pathological to treat strangers as well as your children or friends, and fortunately, no one does it. Those who say they do are like those who say they have no biases, or base all their decisions on the facts: they are naïve about themselves or scheming hypocrites. If one thinks a social welfare maximizer who at least has to think about 'society' is better than a selfish individual, remember that unlike private selfish agents, these less selfish agents have a lot more power, the force of the state. Eventually, their cause becomes less about the pretext and more about simply protecting vested interests.

The iron law of oligarchy claims that rule by an elite is inevitable within any democratic organization. All organizations eventually come to be run by a leadership class, who often function as paid administrators, executives, spokespersons or political strategists for the organization. Far from being public servants, this leadership class will inevitably grow to dominate the organization's power structures, and they tend to favor their friends and family. By controlling who has access to information, those in power centralize their power with little accountability, due to the apathy, indifference and non-participation most rank-and-file members have in relation to their organization's decision-making processes. The official goal of representative democracy of eliminating elite rule is impossible; representative democracy is a façade legitimizing the rule of a particular elite, the Deep State, the inevitable oligarchy.

In any bureaucratic organization there will be two kinds of people: those who work to further the actual goals of the organization, and those who work for the organization itself. Examples in education would be teachers who work and sacrifice to teach children, vs. union representatives who work to protect any teacher including the most incompetent. Eventually the second type of person will always gain control of the organization and will always write the rules under which the organization functions.

2. Social welfare is hard to measure, so any group officially charged with improving it will never have to prove itself.

In the 1950s China thought the key to a good society was having a strong steel production, so they melted down everyone’s silverware and constructed inefficient steel plants everywhere. In Cambodia Pol Pot took all the useless people, such as intellectuals and financiers, and either just shot them or let them work themselves to death in the countryside. In the Soviet Union and Zimbabwe, the wealthy farmers were seen as parasites and expropriated, leading to famine. At no point in these disastrous plans, ones that violated individual liberty and wrecked the economy, did those in charge notice the disaster and stop the way a money-losing business stops doing what it’s doing when it runs out of cash.

Truth is not discovered via a single mind, but rather, via the competition of ideas. Newton, Nietzsche, Tesla, were geniuses, but like everyone else they had lots of bad ideas too. Your average politician has many fewer good ideas. Unfortunately, when the state creates a new policy or agency, it doesn't compete to survive, it just grows like a cancer. Sometimes they redefine their mandate when the initial one becomes less popular (eg, NASA is focused now on climate change and blockchain technology). Other times they redefine success metrics so that they always appear to work (Obamacare was about improving health, but when mortality rates rose supporters simply pointed to higher insurance coverage). The Department of Education's mandate is so vague it is difficult to measure their output, and with defense agencies like the NSA or CIA their productivity is necessarily secret; they do very little outside the occasional grandstanding about some new report, and people are happy if they don't bother them. Lastly, agencies like the TSA who handle airport security are necessary and have a monopoly, so their incentive to improve service is completely absent.

The technique that most explains the efficiency of the private over public sector is that in the private sector businesses eventually stop doing things that lose money. Either the company owners get tired of losing money, the bank forecloses, or they run out of whatever cash they have. A bad regulation (eg, 10% of all gas in my state must be ethanol) just continues because it costs the lawmakers nothing; a pointless agency can point to anecdotes because there literally is no bottom line. Most government 'production' is measured by how much is spent on them, as if spending money on health care is equivalent to generating that amount of value, and debates center on whether the next budget will increase by 2 or 4% as opposed to junking the existing enterprise and starting over from scratch. Only a decentralized system of individuals permits failure, and without failure, capital and labor stagnates.

3. Information is decentralized, incentives must be too.

Economies use information that no single agent can know, in that there are multiple supply chains interacting at every node. No individual can know all the cost and demand curves for various products and specific times and places, and this lack of knowledge matters when production is centrally planned. This is Hayek’s point about the use of knowledge in society, in that only a market economy both incents people with parochial, important knowledge to transmit this information, say by substituting a cheaper input for a traditional one, and has a mechanism to transmit this information via a change in prices. A top-down decision maker has no access to this data. If prices are not produced via equilibrating supply and demand at various stages of production then the prices are arbitrary, leading to suboptimal decisions in the rare case that a social planner actually tries to maximize social welfare. And lots of queueing.

I'd write more about this, but I can't improve on Hayek's piece, and it's a non-technical and short read. Those interested in more mathematical expositions should look at the First and Second Welfare theorems, as well as Sandy Grossman's work in the 1970's on information in prices (book here).

4. Concentrated benefits and diffuse costs favors business over consumers.

Industry representatives have excessive clout in decisions about how their structure best helps social welfare. This is why regulators, charged with choosing what is best for the country tend to become captured by industry, lobbying for the industry more than consumers. Sugar producers employ only 60k people, and the $2B it costs the US in sugar price supports creates a huge incentive for the producers to maintain their little fiefdom, and little incentive for the 330 million consumers to fight it.
James Buchanan

The net result is that industry regulation is mainly a cartelization device, as it was from its very beginning in the US with industry supporting Teddy Roosevelt's anti-trust initiatives. For example, Roosevelt's first trust-busting regulation focused on banning railroad rebates, as if one of the greatest specters facing consumers was predatory pricing, which supposedly caused smaller firms to go bankrupt, and then allowed the remaining firm to raise prices. Banning price discounts to prevent monopoly power is something so stupid only an intellectual can believe it, as falling real prices is the essence of productivity increases, and prices do not fall in concert, but piecemeal, by the more efficient firms. By outlawing price discounts, the more efficient firms and processes will not grow to take over the way they would in a free market. In this way insiders can build a mote around their inefficient but profitable businesses and share their largess with government officials via the revolving door among their executive suites, and mutually supporting each other in less obvious ways (eg, when banks supported non-profits that supported politicians that supported bank regulations that supported the non-profits that made it more costly to enter the industry).

5. State Policy suppresses discovery

An inefficient business can be annoying, but is not oppressive, as usually one has many alternatives. Progressives realize their biggest problem is that adverse selection, in that a policy designed to help some group only works if most of the current population acts as if the policy were not there. Yet the non-targeted group invariably subsidizes the targeted beneficiaries, and so they opt out in various ways. To prevent this, the policy must be universal, and so the benefits of competition, of watching certain companies or industries thrive (industries also compete with other industries, offering different means to an end), is absent.

Thus top-down solutions must prevent individuals from exercising their liberty. In some cases, choice is simply made costly, as when parents move to get their students out of bad school districts, and the predictable response of school administrators is rarely to actually reform its methods, but rather, to vilify 'school choice' as a pernicious mechanism that hurts everyone. Obamacare makes those who do not buy insurance pay a fee. The licensing and registration also explicitly forbids alternatives: it is illegal to get legal counsel from someone who is not a licensed lawyer, health care from an unlicensed physician, or a manicure from an unlicensed cosmetologist.

Coercion implies you are not making someone better off according to the person you are coercing. While there are exceptional cases where coercion is warranted—children, criminals, psychopaths—in general it should be obvious that if coercion is necessary for your policy, it is a symptom your policy is not making individuals better off.

6. Creative destruction is seen as destruction.

Productivity has more costs than benefits from a utilitarian point of view if one models it as we see it occur. Most economic models of growth simply put in a term for productivity growth that makes it look both passive and benign, as the canonical models are the reification of an economy into a representative firm's optimal growth problem. Everyone is in favor of such productivity because there are no losers, just one happy representative agent. In contrast, if Joe invented a hair-cutting machine that enabled him to cut the hair of 5 men at a time, his invention would deprive 4 of his colleagues a job. If then Joe cuts his price from the market rate of $15 to $12, the cost to society for cutting hair went from $75 to $60, but Joe now rakes in $60 while his 4 colleagues lost $15 each. As most people's budget for haircuts is immaterial and given utility increases at a decreasing rate, that lowers social welfare, QED. Further, a muck-raking journalist could note this would increase the load on social services, and family disruption, etc. Thus one could prove Joe's hair-cutting machine is not merely inefficient, but a vampire squid monstrosity.

In practice, through a process not fully understood (ie, modeled mathematically), the 4 unemployed barbers will probably find employment doing something else that makes society better off. Consider that most of us were farmers 200 years ago while now it's only 3%. Many of ancestors who left the farm did not do so out of their own choosing, but rather, found themselves squeezed out by the newfangled machines that made them redundant. We are better off, but only with hindsight. If we demanded every job displaced by a new technology had to have a better job available for everyone displaced, we simply would have very little new technology.

Top-Down Helpers Don't Help

The best we can do is to minimize state power is by minimizing the size and scope of the state, which means emphasizing restrictions on the state, not individuals. That does not mean individuals have no limitations, just that their rights imply they have the default presumption of being a true owner, with an ability to do what they want, not what some government agency wants. Individual rights are like the presumption of innocence in a jury trial, they shift the burden of proof to advantage one side.

It is not mere folly, but dangerous, to think there can ever be a group, let alone a person, who can maximize social welfare better than what happens when you leave people alone. No one person can create most of the products we use, from a simple pencil to a smartphone. No one fully understands their current role in the production process because it is constantly changing as new technologies arise. If there was a group of earnest bureaucrats charged with maintaining social welfare who had to approve of all new technology or disposition of existing capital, there would be several billion fewer of us, and most would be farmers.

A better solution simply assumes everyone is maximizing their self-interest and to encourage competition, the greatest social welfare improvement policy ever created. If we make sure that people pay for what they useincluding the costs of externalities like pollutionprofits imply that they are creating more value than they destroy, and they and others should be encouraged to do it more; if they lose money, they are destroying value, and should be discouraged. Profits allocate resources to their most efficient use (like an invisible hand or something!). Competition requires low barriers to entry, which is much more beneficial than licensing requirements and ADV forms.  For example, the mission of SEC is 'to protect investors, maintain fair, orderly, and efficient markets, and facilitate capital formation'. Yet spreads came down only in spite of them, via a new technology and businesses (high frequency traders) that arose outside of the self-satisfied government-sanction monopolies (ie, NYSE/AMEX/Nasdaq).

Ownership implies control over one’s property, and so the phrase that ownership is nine-tenths of the law means that one defers to the current owner. This prevents endless litigation, as invariably at sometime someone in the past stole the land that one is using from someone else, if not a European from a Native American, then one Native American tribe from another. Further, giving the current owner the ability to transmute or sell their current property incents them to maintain and improve it or sell it to someone who can. Thus, when Pennsylvania was founded back in 1681, it was given to the William Penn to settle a debt owed by Charles II to Penn’s father. Penn promptly sold plots to American settlers who then developed the land productively. It was arbitrary that Penn was given initial ownership, but as Indians had no records or even a conception of private property, there was no way to specify a rightful owner before. Yet Penn's initial ownership was irrelevant, the key merely that someone had to own it before it could be developed. It is a good example of the Coase Theorem.

Property, whether land, capital, or gold, is used best when it is owned by individuals, which means they do not have to ask the state if what they are doing improves social welfare, and they are not obliged to answer the question 'how will this product help the world?' Airbnb, Uber, or bitcoin would not exist if they asked permission first. Even computers, which most white collar workers consider indispensable, were for a long time a curiosity, as Nobelist Robert Solowwhose specialty was economic growthfamously remarked, 'You can see the computer age everywhere but in the productivity statistics.' Solow was a leading expert on long-term growth and was not so much pooh-poohing computers as much as admitting economics was not very good at modeling these new technologies. Those who demand we fully know how any new service or product serves society prior to letting people develop it would retard growth, and giving a group power to make such decisions is an almost irreversible act.

Faith that markets work, and that profits create wealth when they are produced in a competitive market, is not blind faith, but rather something that cannot be proven yet is highly reasonable to believe. Innovation won't come from any single individual's  creativity or Artificial Intelligence, it will only come from zealous advocates and adversaries driven by all the virtues and vices common to men, and only decided by consumers who prefer their products to whatever else they might wish to buy. To presume a state can do this efficiently and will not instead become a self-interested hypocrite monopolist more powerful than any firm or private industry, ignores history, human nature, politics, and economics.