[liberationtech] The Face Value of Bitcoin: Proof of Work and the Labour Theory of Value
Dmytri Kleiner
dk at trick.ca
Thu Feb 1 15:02:05 PST 2018
https://blog.p2pfoundation.net/face-value-bitcoin-proof-work-labour-theory-value/2018/02/01
# The Face Value of Bitcoin: Proof of Work and the Labour Theory of
Value
Dmytri Kleiner
Bitcoin was created to be a new kind of money rooted in a vision of a
market not bound by geography, banks and governments. Despite the
intentions of its creators, Bitcoin is not money. It was designed with a
faulty understanding of money, and as a result has a bug, a kind of a
short circuit that kick-started an asset bubble and that will eventually
turn Bitcoin into a toxic asset. In order to to fix this bug we need to
employ the labour theory of value.
Writing at New Economic Perspectives, Eric Tymoigne, a research
associate at the Levy Economics Institute, argues that the fair price of
Bitcoin is zero.
Tymoigne's reasoning is based on the the fact that money is a financial
instrument. The value of a financial instrument can come from being
redeemable to its issuer, from providing an income stream or from having
a collateralized value. For example US Dollars are redeemable against
taxes. Bonds bear interest and stocks pay dividends. Gold coins contain
gold, which can be sold as a commodity.
Since Bitcoin is not redeemable, provides no income and has no
collateralized value, it is worthless as a financial instrument. Thus,
its "fair price" is zero. Eric concludes that "Bitcoins are purely
speculative assets."
From the point of view of modern finance, Bitcoin is not money at all.
The inventor of Bitcoin, Satoshi Nakamoto, did set out to create a new
kind of money. The very first words of the Bitcoin whitepaper state that
a "purely peer-to-peer version of electronic cash would allow online
payments to be sent directly from one party to another without going
through a financial institution."
Bitcoin is intended to be money. A different kind of money. A form of
money that is not a financial instrument issued by a bank or government,
as Tymoigne understands it, but a form of money that is independent of
financial institutions, governments and all other intermediaries.
Bitcoin is intended to be a kind of money that can be used to make
payments across the internet in a way that makes government unnecessary
and doesn't reveal real names or physical locations. As such, it does
not have properties that would tie it to an issuer who could redeem it,
or provide a money income, or be collateralized with a physical
commodity. Decentralized money can not have the properties on which Eric
Tymoigne bases fair price.
The economic school most associated with the Bitcoin community is the
Austrian school, especially its libertarian capitalist adherents. This
school views money as being firmly rooted in what Tymoigne refers to as
its collateralized value, i.e. the gold content in a gold coin, what
Austrian-influenced economists call "sound money."
While the modern finance view holds that even with gold coins, "the gold
content of the coin is not a monetary instrument, and it is not what
makes the coin a monetary instrument" as Tymoigne puts it, on the hand
the Austrian view is that it is specifically the gold content of a gold
coin that makes it money.
Frank Shostak, associated scholar of the Mises Institute, claims "An
object cannot be used as money unless it already possesses an objective
exchange value based on some other use." Murray Rothbard, one of the key
theorists of libertarian capitalism, states that money cannot originate
"by everyone suddenly deciding to create money out of useless material,
nor by government calling bits of paper 'money.'"
Rothbard further explains that the only way money can come to exist is
"by beginning with a useful commodity under barter, and then adding
demand for a medium for exchange to the previous demand for direct use."
Though inconvenient to Bitcoin proponents, it's clear that Austrian
theory would not consider Bitcoin money, since it's a "useless
material," which never had any "value based on some other use"
prior to being money. Despite this, Bitcoin's design has been influenced
by a faulty application of the Austrian theory of sound money,
especially the "gold standard."
The logic of the gold standard is that the supply of sound money, a
useful commodity such as gold, determines the value of paper money
issued by governments. Paper money is not a useful commodity and
therefore has no intrinsic value. The government should be limited in
the amount of paper money they create to the amount of gold they have.
The gold standard is a proposal to have a fixed ratio between sound
money, e.g. gold, and paper money.
It is not the amount that is fixed, but the ratio. Neither the amount of
gold, nor the amount of paper money is fixed in the gold standard, the
ratio between them is. If the government gets more gold, it should also
create more paper money according to the theory, to keep the exchange
value of money stable.
The Bitcoin software is programmed so that a fixed total supply will be
eventually be mined, 21 million Bitcoin, and the rate at which Bitcoin
is mined is also fixed. Starting at 50 BTC every 10 mins, the rate is
reduced by half every four years. As of 2016 the rate of Bitcoin
creation is 12.5 Bitcoins every 10 minutes, and will become 6.25 in
2020.
Bitcoin's creators attempted to follow the reasoning of the gold
standard by fixing the number of Bitcoins, understanding it to be like
paper money, but as Bitcoin does not have a source of sound money to fix
the supply of Bitcoin to, they just made up a wacky formula out of thin
air. Essentially attempting to fix the money supply by decree, and
encode that decree into Bitcoin's software. In the Austrian view, this
results in a broken digital currency that lacks a ratio to sound money.
Bitcoin can not be rational. Its face value can not be expressed as a
consistent ratio with a supply of useful commodities. It is irrational
by design, just like Bitcoin would have zero value from the point of
view of modern finance, it would also have zero value from the point of
view of Austrian theory. Both views consider the entire exchange rate of
Bitcoin to be a speculative bubble, but neither can elaborate on how
this bubble came to exist.
The Austrian schools of thought subscribes to the "subjective theory of
value" developed by economists such as William Stanley Jevons, Léon
Walras, and Carl Menger in the late 19th century.
Without an objective measure of value, money has to be itself a thing
that can be used. For value to be subjective, money has to be an object,
the utility of which measures the price of all of the things priced in
it. For this reason, the Austrian school can not see the forest for the
trees when it comes to Bitcoin, because it can not see the obvious
source of value as being the computational power used to mine Bitcoin,
as Bitcoin is not directly backed or collateralized by the mining rigs
and the power they consume.
The subjective theory of value was developed in opposition to the labour
theory of value, especially in opposition to socialist views and the
ideas of Karl Marx. However Marx's theory of money is not rooted in
redeemability, nor collateralization, nor income, nor usefulness, but
rather in labour.
Ironically, while libertarian capitalist theories of money can not
account for Bitcoin, Marxist theories of money can. The face value of
Bitcoin represents a certain worth in terms of the labour time embedded
in the computation power used to mine it. The Marxist theory of money is
a Proof of Work theory.
For Marx, the value of all commodities is not subjective, but objective;
all commodities have a value that is created by the labour required to
produce them. The reason that money can be used as a way to express the
price of other commodities is because it represents a certain amount of
labour, which is also what the worth of the other commodities is based
on. As Marx states in Grundrisse "1/x ounce of gold is in fact nothing
more than 1/x hours of labour time materialized, objectified."
Marx illustrates that the face value of money is a rational number. It
always represents a specific ratio. In the case of gold, Marx employs
the ratio between the amount of gold and the amount of labour, the
work:gold ratio. The value of the total volume of gold is derived from
the amount of work required to produce it.
For something to be money, it needs to have a rational value, and it is
that value in which the prices of all other commodities are expressed.
Money, as such, has no price, and can not.
Take for example an economy that produces apples, oranges and coconuts,
you could have a table of prices that lists apples and oranges in terms
of coconuts, oranges and coconuts in terms of apples, and apples and
coconuts in terms of oranges. You could not have a price of apples in
terms of apples, nor oranges in terms of oranges, nor coconuts in terms
of coconuts, or rather that price would always be 1.
If we chose to use coconuts as money, presumably because we're coocoo
for them, how many apples are worth a coconut? How many oranges are
worth a coconut? The value of the coconut is its socially necessary
labour time. Say that is 10 hours. Therefor a coconut is "worth" 10
hours. Say an orange is worth 2 hours and apple is worth 5 hours, the
price of the orange is 0.20 coconuts (20 cococents), and the apple is
1/2 a coconut.
As coconuts are money, more are produced than are used, since once you
use it to make a chutney, you can't spend it as money, and you can't
save it. So its original use value as food is replaced by its new use
value as money.
Yet, the value of a coconut is still rooted in socially necessary labour
time, like the commodities that are priced in it, this is why it can be
used to compare all the other commodities, because its value is rooted
in the same thing: labour.
If there are not enough coconuts for the savings needs of the economy,
demand for coconuts will go up. The exchange value of coconuts will
temporarily rise, but will fall back to its value as more labour is
drawn into coconut production, and away from the production of the other
commodities. The market regulates the value of coconuts.
Money can express the value of commodities, because both money and the
commodities priced in it can be reduced to a ratio of work to supply.
While the libertarian capitalist theory is not useful in determining the
value of Bitcoin, Marxist theory is. Bitcoin does not need to be backed
or collateralized in any reserve of useful commodities, but instead in
the labour time required to produce it. Proof of work.
The Bitcoin software employs an algorithm that increases the difficulty
of the work needed as more mining capacity is added to the pool to keep
the rate at the current limit that is configured in the software. This
means that while the face value of Bitcoin represents a certain worth in
terms of labour, this worth is not consistent. There is no fixed ratio
between work and coin. More work creates more value, but instead of
creating more coins with the same value each, it creates the same number
of coins. Each coin has more value.
As more computational power, representing ever greater amounts of
labour, is employed in Bitcoin mining, the number of Bitcoins produced
does not go up, instead, the value of each Bitcoin goes up, creating a
positive feedback loop. The more Bitcoin goes up, the more people are
attracted to mining it, the more it goes further up.
The Bitcoin creators model Bitcoin as a kind of paper money with an
arbitrarily fixed supply and therefore an irrational value, attempting
to follow Austrian theory, rather than model it as a money commodity
according to Marxist theory, which is regulated by the market.
While at first Bitcoin's exchange rate was only of interest to the
economy of enthusiasts who are attracted to its intrinsic decentralized
features, eventually investors and speculators took notice, and Bitcoin
become the purely speculative asset Tymoigne accuses it of being. The
positive feedback loop quickly became a short circuit, and kick-started
an asset bubble.
As the bubble grows, the capital gains from Bitcoin become larger, and
exceed returns from other forms of investment. Investment portfolios
will over time start to carry a larger portion of Bitcoin, squeezing out
other investment options.
During a bubble, It becomes perfectly rational for investors to pay a
foolish price for an asset if they are certain that it can be sold for a
higher price to a greater fool. The exchange rate of Bitcoin become
detached from the labour time embedded in the computational capacity of
the mining pool and become underwritten instead by the supply of the
greater fool.
This turns the bubble investor into a judge in a kind of a beauty
contest described by Keynes as not being one where we choose the
prettiest option, but where "we devote our intelligence to anticipating
what average opinion expects the average opinion to be."
Like a game of betting on the answers of the contestants on Family Feud,
so long as the investors believe that the average opinion expects the
average opinion to be that Bitcoin will go up, Bitcoin will win the
Keynesian Beauty Contest and the bubble will continue to inflate.
However, the greater fool regularly has a crisis of confidence, which
causes frequent crashes during the rise.
So long as exchange rate doesn't stay below the cost of mining Bitcoin
for very long, the bubble won't pop and Bitcoin's positive feedback loop
will quickly begin to push the exchange value up again. So long as the
capital gains are still better than returns on other investments,
portfolio compositions will continue to shift to holding more Bitcoin.
At the same time, as long as the return on capital gains of Bitcoin are
greater than real interest rates, portfolios will become more leveraged.
Investors will borrow more and more, as the payment of the interest is
less than the expected return from the Bitcoin exchange rate going up.
Hyman Minsky describes three kinds of investors, "hedge" investors,
which have enough income to pay both the interest and principal on their
loan, "speculative" investors, that can pay the interest but not the
principle, and "Ponzi" investors, investors who can not pay either the
principal or the interest, and depend on the assets that they own to
increase in exchange value.
As returns on Bitcoin continue to be greater than other investments,
Bitcoin will become a larger portion of investment portfolios, as
Bitcoin does not pay interest or dividends, this means that the income
of investors will go down as a result. While returns on Bitcoin are be
greater than real interest rates, investors take on more and more loans.
As a result, more and more investors will "go Ponzi."
Every time there is a crisis of confidence of the greater fool, the
Ponzi investors will go bust, as they can't pay their loans, even after
they sell off all their Bitcoin. As more investors go Ponzi, these will
cause deeper and deeper crashes in Bitcoin, each crash will make Bitcoin
a little less pretty, eventually Bitcoin will start losing the Keynesian
beauty contest, perhaps to other alt-coins, perhaps to other investments
completely, and the supply of the greater fool will dry up.
As the bubble bursts, Bitcoin will quickly become a toxic asset, with
many holders wanting to sell, but finding few buyers. Miners will begin
to abandon Bitcoin, and the positive feedback loop will begin to operate
in reverse. Less miners will not mean less Bitcoin being produced, but
instead the proof of work will become less difficult and the same number
of Bitcoins will be produced. The value of each Bitcoin will fall.
Eventually, falling to its "fair price" of zero, as Eric Tymoigne
determined, or close enough to it. It will go back to simply being the
in-game currency of libertarian capitalist fantasies.
The Austrian idea of money needing to be in fixed supply, drawing
inspiration from "the gold standard," is the undoing of Bitcoin. The
coding of this bad idea into the Bitcoin software means, ironically,
that the market can't regulate Bitcoin. As more people invest in mining
operations and the mining pool grows, the supply of Bitcoin doesn't go
up, so return on investment can't regulate its exchange value.
Meanwhile, the bubble in the exchange rate of Bitcoin has made it
useless as money. Price instability and high transaction costs have
forced many vendors and payment processors who accepted it as payment to
drop it as an option. This includes most of its most prominent
mainstream supporters, like the digital distribution platform Steam or
the payment processor Stripe.
As Bitcoin is still a relatively small part of overall investment
portfolios, it's impossible to know when exactly the bubble will burst.
It's likely that the libertarian capitalist bent of the community will
actually work to delay this, as this community is a rich source of the
greater fool, and probably is less likely to take on loans. We are very
likely a long way away from a "Minsky Moment," where a large number of
Ponzi investors going bust causes a meltdown.
Not only has Bitcoin failed as money, but the asset bubble it has
created has diverted investment from real production of goods to
speculation, and the mining process consumes a phenomenal amount of
energy, with catastrophic environmental effects. Meanwhile, it has done
nothing in terms making the economy more fair or reducing the power of
either governments, banks or any of the intermediaries it was meant to
displace. There is no question that Bitcoin is a failure, a rather
disastrous one, even if some speculators have been spectacularly
enriched by it.
If there is value in the original vision of Bitcoin, to have a form of
money that can be used to make payments across the internet in a way
that makes government unnecessary and doesn't reveal real names or
physical location, it needs to be programmed differently. Such a
currency would need to work in such a way that the supply of the
currency increases when more mining capacity is added to the pool. This
allows the market to regulate its exchange value by the natural increase
and decrease of investment in mining relative to demand for the
currency.
It is possible to create a cyptocurrency with a with a stable value by
simply eliminating the feedback loop, creating a rational cryptocurrency
with a consistent work:coin ratio. Bitcoin could be made rational by
increasing and decreasing the number of Bitcoins produced per block
along with the increase and decrease of the difficulty of the proof of
work. This way, the number of Bitcoins produced would scale in
proportion with the investment in mining.
However, there may not be much interest in doing this. As miners would
need to choose to use their hashing power to make a standard rate of
profit mining the rational cryptocurrency instead of chasing speculative
returns by mining bubble-prone, intentionally irrational
cryptocurrencies. Another obstacle would be get attention for it, as a
rational cryptocurrency would not attract hype, because it would not
have fantastically skyrocketing exchange rates.
Bitcoin was intended to be digital money for an ideal perfect market for
libertarian capitalists, instead Bitcoin has turned out to primarily
benefit bankers and speculators at the expense of the environment and
the real economy.
For any that remain committed to the original vision of Bitcoin, a
decentralized money that one could use with out revealing their real
name and location, the path forward lies in creating a rational
cryptocurrency, based on the Marxist and not the Austrian theory of
money.
Yet, even with a rational cryptocurrency, it is unlikely to play a major
role in the global monetary economy, given that governments are not
constrained by reserves, crypto or otherwise. Even with a "gold
standard" governments can still spend more by securitizing future tax
obligations. Banks are likewise constrained only by qualified demand for
their loans, not their own reserves. This means that the money in the
global economy will remain government and bank money at the macro level.
Even if a rational cryptocurrency can not play the sort of revolutionary
role that animates the dreams of libertarian capitalists, it can still
provide a payment option that is international, convenient and privacy
respecting, which remains worthwhile.
However, the institutions that would most likely create a rational
cryptocurrency would be the banks or a fintech startup seeking to
disrupt payment processing. While hardly heralding in a libertarian
capitalist paradise, this would certainly be a better use of work than
the misguided and harmful bubble Bitcoin is today.
--
Dmytri Kleiner
http://dmytri.info
@dmytri
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