7 ms·

The Bitcoin Bubble and a Bad Hypothesis

28 points by chrismealy 14y ago

gasull 14y ago
Bitcoin intrinsic value: It can be transferred (spent) electronically over a decentralized network without double-spending risk, chargeback risk, inflation risk and confiscation/bailout/haircut risk. How can anyone say this has no intrinsic value? You can say that you don't care about this properties, like I don't care that gold is shiny, but that doesn't mean it has no value. I think many analysts confuse intrinsic value with being tangible.
- millstone 14y ago
  Two comments: 1. Without the decentralized network that you mention, a bitcoin has no value. But the decentralized network requires some level of acceptance for anyone to run it. So bitcoin's value depends on its acceptance, in a way that gold does not. 2. Bitcoin certainly incurs inflation risk - the large recent drop in the purchasing power of a bitcoin is inflation, after all. Perhaps you meant "without risk of manipulation by the currency issuer," but currencies may move for many other reasons.
- qengho 14y ago
  First, as has already been pointed out, nothing has intrinsic value. Things only have value inasmuch as somebody values them. Value is a relationship between the subject and the object, not a property of the object. Gold has a 'base value' that arises because of its demand for non-monetary uses, such as its industrial uses or use in jewellery. This base value is what makes it suitable as a medium of exchange as the base value sets gold's initial non-zero exchange rate vis-a-vis other goods. Once gold (or any other commodity) starts being used as a medium of exchange, it generates further demand AS a medium of exchange, and this will increase its price in relation to other goods, giving it a currency value higher than the base value. It's like mathematical induction - where the general case is predicated on the base case. If there is no base case (or base value) there is no foundation for the general case (or for a currency value). Bitcoin has no base value. Yes it "can be transferred (spent) electronically over a decentralized network without double-spending risk, chargeback risk, inflation risk and confiscation/bailout/haircut risk". But so can Bitcoins based on an alternate blockchain. What makes the 'official' blockchain Bitcoins have any higher base value than the worthless bitcoins on an alternate blockchain? In fact, I expect there will be alternate blockchains in the near future, and that is what will burst the bubble as people start to realise that the number of bitcoins may be limited, but the number of bitcoin-like currencies is unlimited, so really, the limit on the number of possible bitcoins is entirely illusory and meaningless. A free-market, decentralized fiat money is still more useful for many purposes than statist fiat money, and for this reason Bitcoin will enjoy some popularity until a proper anonymous, gold-backed free market e-currency comes along. When that happens, there will no longer be any use case for Bitcoin and its currency value will collapse to its base value of 0.
tlb 14y ago
Bitcoin does have an intrinsic value: the ability to buy things online privately. People have a need to buy things online without their credit card company using that information to target marketing or update their risk profile. People continue to use cash in the physical world, even though it's less convenient than cards, because it is private and the merchant gets 100% of the money. Bitcoin has the same virtues online. FWIW, you can't actually pay your taxes with cash.
- bitcartel 14y ago
  > Bitcoins will attain their true value of zero sooner or later, but it is impossible to say when... Bitcoins are the most demonstrably valueless financial asset ever created It looks like John Quiggin is basing his views upon his extensive prior research[1] into Bitcoin, and he is not simply jumping onto the bandwagon like so many other economists. [1] http://johnquiggin.com/?s=bitcoin http://johnquiggin.com/?s=bitcoin
  - gwern 14y ago
    Since in the OP he fails to explain any reasons why anyone might find Bitcoin useful or valuable in the first place, one could doubt the quality of his 'extensive prior research'.
- argonaut 14y ago
  You're misinterpreting the definition of intrinsic value. The ability to buy things online privately is something entirely extrinsic to BTC. Even people who say that the US dollar has intrinsic value (aside from the paper) are mistaken - value derived by fiat only gives the dollar legal value. You most certainly can pay taxes with cash. But that's not the point. The point is that you have to pay your taxes in US dollars.
  - deleted 14y ago
    [deleted]
  - Evbn 14y ago
    And the value of the ability to fill your mouth with gold is completely extrinsic to gold.
flootch 14y ago
Interesting analysis. More discussion at Quiggin's blog here: http://crookedtimber.org/2013/04/17/bitcoin-the-perfect-bubble/ http://crookedtimber.org/2013/04/17/bitcoin-the-perfect-bubb...
- tptacek 14y ago
  "But John, last week I had x Bitcoin. Today I have x Bitcoin. So value is unchanged. Constant at x Bitcoin. Dollar is volatile though. #ThinkBTC"
  - MartinCron 14y ago
    That's an optimist's way of looking at it. Look at how strong the USD is against BTC. Things must be great in America!
    - bayesianhorse 14y ago
      Things are great in America, compared to most of the world, actually ;-)
  - cperciva 14y ago
    ... which is why we usually compare currencies over time in terms of baskets of goods.
  - bct 14y ago
    That comment is a reference to another post on the front page of Crooked Timber right now: http://crookedtimber.org/2013/04/17/annals-of-the-gold-standard-medium-of-exchange-store-of-value/ http://crookedtimber.org/2013/04/17/annals-of-the-gold-stand...
  - flootch 14y ago
    Not sure you'll see this, but I am curious, do you ever see a link that has no discussion and that you think deserves a discussion, or you think has the potential for a discussion you would like to read? If so, do you ever attempt to "rescue" them by leaving a somewhat neutral comment of some value?
tomelders 14y ago
> Bitcoins will attain their true value of zero sooner or later, but it is impossible to say when. I predict it'll happen the second everything is made legal everywhere in the world.
- chadscira 14y ago
  So i'm not the only one that noticed the writer forgot to mention what bitcoin is mainly used for :P
- anonymoushn 14y ago
  When this happens we can still use it until international wire transfers are free :)
abbott 14y ago
IMHO bitcoin provides immense value once it is truly anonymous. If anyone can anonymously gamble, buy and sell goods, and trade against bitcoin for profit then it's a perfect currency for illegal activity, which in itself represents a massive economy outside the walls of gov't.
return0 14y ago
> willingness to hold the asset depends on the fact that it has value independent of that willingness. Tobacco can be smoked or chewed, gold can be used to fill teeth or make jewellery, and U.S. dollars can be used to meet obligations to the U.S. government. Gold has very few industrial uses. If its price was its 'independent' value, it would cost a hell lot less. It's a value store because people believe is safe, even though it's much easier to steal a bar of gold than to fake bitcoins. Gold is also difficult to move around, or to make anonymous transactions with, or to split in small pieces etc. Gold is the old world's bitcoin, and, if anything its more flawed than bitcoins. As digital currencies prove their robustness and reliability, we will probably see a massive move from 'precious' metals to digital value stores. This professor will be shaking his head in disbelief in a few years. http://en.wikipedia.org/wiki/Gold_as_an_investment http://en.wikipedia.org/wiki/Gold_as_an_investment
- mey 14y ago
  Bitcoins may be hard to "fake", but not hard to steal. People are generally more familiar (currently) with physical security then digital security.
  - olivier1664 14y ago
    Yes and no: it is just a question of habit. You will no more need some physical coffer. You will just need to remember a big password (or just a small coffer where you put a unique printing of your password). The protection of your property will be cheaper.
  - return0 14y ago
    It would be interesting to see statistics on this. Does digital theft happen more often than physical? In the end, you can always encapsulate a wallet in a crypto physical device.
bayesianhorse 14y ago
We are arguing about the wrong two questions: 1) What is the right value of 1 Btc? $0 or $100, or $1000? 2) Can it replace government issued currencies? The right question to ask is 3) What is Bitcoin good for? It's not currently good at storing value over the long term. Short term it worked most of the time. And that's been the pattern in the bitcoin economy: Transfer globally, or in transactions where other payment options are prohibitively expensive, and exchange bitcoin for your local currency by local and transparent means.
javert 14y ago
Proving once again that the economics departments are about as useful as the philosophy departments. (No offence to those few good academic economists and philosophers.)
- deleted 14y ago
  [deleted]
- BrianEatWorld 14y ago
  I don't know that you would be insulting actual economists. You learn pretty quickly that EMH is an abstract model and should be treated as such. It is unfortunate that such caveats rarely make it across campuses into business/finance departments. The article itself clearly falls victim to this and commits the further sin of casually dismissing the transactional uses of bitcoin. EMH has issues and bitcoin may fail, but it is unlikely to be for the reasons the author cites.
baby 14y ago
Seems like the author never really understood bitcoins. Bitcoin is not a bubble. It's a way to move money efficiently on internet. The speculation around bitcoin was a bubble. Bitcoins will still remain used and useful as long as people use them.
- illuminate 14y ago
  "Bitcoin is not a bubble. It's a way to move money efficiently on internet." The two are by no means mutually exclusive.
  - baby 14y ago
    This is exactly what I wrote.
bcoates 14y ago
Calling the Bitcoin Bubble "final refutation of the efficient-markets hypothesis" is a stretch. MtGox is opaque and illiquid for something that looks like a stock market, and the market is tiny and centered around the very long-shot possibility of distant future value. If you can't arbitrage a a market, EMH puts no bounds on how wrong it can be, and mtgox is very difficult to arbitrage, so the price wanders around chaotically between prices extreme enough to actually make risk-adjusted profit off them. The situation for options/futures is even worse than at mtgox, and a broad acceptance of bucket shop behaviors based on mtgox market feeds can't be helping. From top to bottom, this is not a market oriented towards the efficient discovery of prices.
- bayesianhorse 14y ago
  I think the main point about the EMH and Bitcoin is that a market can be quite efficient without anyone knowing that it is efficient or why this is so...
ryanthejuggler 14y ago
The fact that he calls the computations "useless" in his second paragraph proves he doesn't understand the concept. Miners are being rewarded for double-checking the validity of recent transactions... If he said the same of Visa's or American Express's computer computations he'd never get published!
qengho 14y ago
It is quite incorrect to say that "Historically, money arose from, and in conjunction with, this power." (the power of taxation by states). He gives no evidence for this claim except to reference a "controversial" book - perhaps controversial because of its wildly inaccurate thesis? Unless the contention is that humans traded solely by barter before states came along to tax them, mediums of exchange (money) obviously predate the statist invention of fiat money. In fact fiat money is a relatively recent phenomenon, as money was historically backed by precious metals long before states invented unbacked fiat money and central (statist) banking. Which doesn't in any way invalidate his argument that Bitcoin is a bubble. It's totally irrelevant to the Bitcoin issue. It's just wrong by itself. Another thing that's just plain wrong is the attempt to refute the efficient markets hypothesis (EMH). The only reason Bitcoin actually does have a value above 0 at the moment is precisely because statist meddling in the market has created a huge demand for an alternative to fiat money - such a huge demand in fact that people are willing to try almost anything, including Bitcoin, or even riskier methods with a high failure rate (such as J. Orlin Grabbe's early anonymous banking system DMT, or unaudited gold-backed e-currencies that may actually be backed by nothing at all, among many other examples). If we had uncrippled free-market gold-backed electronic currencies (such as e-gold was before it was attacked and destroyed by the feds) there would be zero demand for bitcoin as the existing currencies would have all the benefits of Bitcoin, while also being backed by a commodity with a base value (not 'intrinsic value'). So, it _might_ be a refutation of EMH if Bitcoin were to be successful long-term in an actual free market. As nowhere on this planet do we find anything even remotely resembling an actual free market, his argument against EMH is as much of a straw man as all the other examples that pinkos trot out as examples of "market failure" while pretending that there is a free market somewhere, which there isn't. All such examples are really examples of statist intervention failure, not market failure, as the market we are talking about is highly crippled and not remotely free.
- gph1 14y ago
  This is just fetishism. All currencies are fiat currencies, and all currencies are creatures of the state. If a currency is set at a fixed exchange rate to a precious metal, it's because a "statist fiat" made it so.
enoch_r 14y ago
> According to the efficient-markets hypothesis (EMH), which still dominates the analysis of financial markets, this should be impossible. The EMH states that the market value of an asset is equal to the best available estimate of the value of the services or income flows it will generate. In the case of a company stock, this is the discounted value of future earnings. Since Bitcoins do not generate any actual earnings, they must appreciate in value to ensure that people are willing to hold them. But an endless appreciation, with no flow of earnings or liquidation value, is precisely the kind of bubble the EMH says can’t happen. No. No no no no no. EMH doesn't say that everything must be priced according to the "best available estimate of the value of the services or income flows it will generate." For example, if I pay $20,000 for a car, that doesn't mean that the present value of the extra income I'll earn thanks to that car is $20,000. It might mean the car makes my life more pleasant and convenient. Dollars are valuable for exactly the same reason--since everyone I know will accept dollars instead of whatever it is they'd like to buy with dollars, having dollars makes my life extremely convenient. That, not the fact that I need them to pay taxes, is what makes dollars so valuable. The issue here is that there are network effects. Just as dollars are more valuable to me because they're used and accepted by everyone I know, or a fax machine is only valuable to me if I know someone who can receive my faxes, a currency is only valuable when someone else is willing to accept payment in it. This means that, as a currency is adopted by higher and higher proportions of the population (or as the perceived odds of that rise), its value also rises. Bitcoin definitely looks like a bubble to me. It's a small market, it's dominated by people with strong philosophical positions that predispose them towards BTC. And shorting is difficult. But the reasoning in the article is absurd.
- thatthatis 14y ago
  The EMH applies to market-traded securities. Your car is not a marketable security.
  - enoch_r 14y ago
    That's probably a better way to put it. I guess the point is that EMH doesn't apply to BTC for some of the same reasons it doesn't apply to cars--both cars and currencies get much of their value from utility that's unrelated to the income flows they generate.

28 points by chrismealy 14y ago

Bitcoin intrinsic value: It can be transferred (spent) electronically over a decentralized network without double-spending risk, chargeback risk, inflation risk and confiscation/bailout/haircut risk. How can anyone say this has no intrinsic value? You can say that you don't care about this properties, like I don't care that gold is shiny, but that doesn't mean it has no value. I think many analysts confuse intrinsic value with being tangible.

millstone 14y ago
Two comments: 1. Without the decentralized network that you mention, a bitcoin has no value. But the decentralized network requires some level of acceptance for anyone to run it. So bitcoin's value depends on its acceptance, in a way that gold does not. 2. Bitcoin certainly incurs inflation risk - the large recent drop in the purchasing power of a bitcoin is inflation, after all. Perhaps you meant "without risk of manipulation by the currency issuer," but currencies may move for many other reasons.
qengho 14y ago
First, as has already been pointed out, nothing has intrinsic value. Things only have value inasmuch as somebody values them. Value is a relationship between the subject and the object, not a property of the object. Gold has a 'base value' that arises because of its demand for non-monetary uses, such as its industrial uses or use in jewellery. This base value is what makes it suitable as a medium of exchange as the base value sets gold's initial non-zero exchange rate vis-a-vis other goods. Once gold (or any other commodity) starts being used as a medium of exchange, it generates further demand AS a medium of exchange, and this will increase its price in relation to other goods, giving it a currency value higher than the base value. It's like mathematical induction - where the general case is predicated on the base case. If there is no base case (or base value) there is no foundation for the general case (or for a currency value). Bitcoin has no base value. Yes it "can be transferred (spent) electronically over a decentralized network without double-spending risk, chargeback risk, inflation risk and confiscation/bailout/haircut risk". But so can Bitcoins based on an alternate blockchain. What makes the 'official' blockchain Bitcoins have any higher base value than the worthless bitcoins on an alternate blockchain? In fact, I expect there will be alternate blockchains in the near future, and that is what will burst the bubble as people start to realise that the number of bitcoins may be limited, but the number of bitcoin-like currencies is unlimited, so really, the limit on the number of possible bitcoins is entirely illusory and meaningless. A free-market, decentralized fiat money is still more useful for many purposes than statist fiat money, and for this reason Bitcoin will enjoy some popularity until a proper anonymous, gold-backed free market e-currency comes along. When that happens, there will no longer be any use case for Bitcoin and its currency value will collapse to its base value of 0.

tlb 14y ago

Bitcoin does have an intrinsic value: the ability to buy things online privately. People have a need to buy things online without their credit card company using that information to target marketing or update their risk profile. People continue to use cash in the physical world, even though it's less convenient than cards, because it is private and the merchant gets 100% of the money. Bitcoin has the same virtues online. FWIW, you can't actually pay your taxes with cash.

bitcartel 14y ago
> Bitcoins will attain their true value of zero sooner or later, but it is impossible to say when... Bitcoins are the most demonstrably valueless financial asset ever created It looks like John Quiggin is basing his views upon his extensive prior research[1] into Bitcoin, and he is not simply jumping onto the bandwagon like so many other economists. [1] http://johnquiggin.com/?s=bitcoin http://johnquiggin.com/?s=bitcoin
- gwern 14y ago
  Since in the OP he fails to explain any reasons why anyone might find Bitcoin useful or valuable in the first place, one could doubt the quality of his 'extensive prior research'.
argonaut 14y ago
You're misinterpreting the definition of intrinsic value. The ability to buy things online privately is something entirely extrinsic to BTC. Even people who say that the US dollar has intrinsic value (aside from the paper) are mistaken - value derived by fiat only gives the dollar legal value. You most certainly can pay taxes with cash. But that's not the point. The point is that you have to pay your taxes in US dollars.
- deleted 14y ago
  [deleted]
- Evbn 14y ago
  And the value of the ability to fill your mouth with gold is completely extrinsic to gold.

flootch 14y ago

Interesting analysis. More discussion at Quiggin's blog here: http://crookedtimber.org/2013/04/17/bitcoin-the-perfect-bubble/ http://crookedtimber.org/2013/04/17/bitcoin-the-perfect-bubb...

tptacek 14y ago
"But John, last week I had x Bitcoin. Today I have x Bitcoin. So value is unchanged. Constant at x Bitcoin. Dollar is volatile though. #ThinkBTC"
- MartinCron 14y ago
  That's an optimist's way of looking at it. Look at how strong the USD is against BTC. Things must be great in America!
  - bayesianhorse 14y ago
    Things are great in America, compared to most of the world, actually ;-)
- cperciva 14y ago
  ... which is why we usually compare currencies over time in terms of baskets of goods.
- bct 14y ago
  That comment is a reference to another post on the front page of Crooked Timber right now: http://crookedtimber.org/2013/04/17/annals-of-the-gold-standard-medium-of-exchange-store-of-value/ http://crookedtimber.org/2013/04/17/annals-of-the-gold-stand...
- flootch 14y ago
  Not sure you'll see this, but I am curious, do you ever see a link that has no discussion and that you think deserves a discussion, or you think has the potential for a discussion you would like to read? If so, do you ever attempt to "rescue" them by leaving a somewhat neutral comment of some value?

tomelders 14y ago

> Bitcoins will attain their true value of zero sooner or later, but it is impossible to say when. I predict it'll happen the second everything is made legal everywhere in the world.

chadscira 14y ago
So i'm not the only one that noticed the writer forgot to mention what bitcoin is mainly used for :P
anonymoushn 14y ago
When this happens we can still use it until international wire transfers are free :)

abbott 14y ago

IMHO bitcoin provides immense value once it is truly anonymous. If anyone can anonymously gamble, buy and sell goods, and trade against bitcoin for profit then it's a perfect currency for illegal activity, which in itself represents a massive economy outside the walls of gov't.

return0 14y ago

> willingness to hold the asset depends on the fact that it has value independent of that willingness. Tobacco can be smoked or chewed, gold can be used to fill teeth or make jewellery, and U.S. dollars can be used to meet obligations to the U.S. government. Gold has very few industrial uses. If its price was its 'independent' value, it would cost a hell lot less. It's a value store because people believe is safe, even though it's much easier to steal a bar of gold than to fake bitcoins. Gold is also difficult to move around, or to make anonymous transactions with, or to split in small pieces etc. Gold is the old world's bitcoin, and, if anything its more flawed than bitcoins. As digital currencies prove their robustness and reliability, we will probably see a massive move from 'precious' metals to digital value stores. This professor will be shaking his head in disbelief in a few years. http://en.wikipedia.org/wiki/Gold_as_an_investment http://en.wikipedia.org/wiki/Gold_as_an_investment

mey 14y ago
Bitcoins may be hard to "fake", but not hard to steal. People are generally more familiar (currently) with physical security then digital security.
- olivier1664 14y ago
  Yes and no: it is just a question of habit. You will no more need some physical coffer. You will just need to remember a big password (or just a small coffer where you put a unique printing of your password). The protection of your property will be cheaper.
- return0 14y ago
  It would be interesting to see statistics on this. Does digital theft happen more often than physical? In the end, you can always encapsulate a wallet in a crypto physical device.

bayesianhorse 14y ago

We are arguing about the wrong two questions: 1) What is the right value of 1 Btc? $0 or $100, or $1000? 2) Can it replace government issued currencies? The right question to ask is 3) What is Bitcoin good for? It's not currently good at storing value over the long term. Short term it worked most of the time. And that's been the pattern in the bitcoin economy: Transfer globally, or in transactions where other payment options are prohibitively expensive, and exchange bitcoin for your local currency by local and transparent means.

javert 14y ago

Proving once again that the economics departments are about as useful as the philosophy departments. (No offence to those few good academic economists and philosophers.)

deleted 14y ago
[deleted]
BrianEatWorld 14y ago
I don't know that you would be insulting actual economists. You learn pretty quickly that EMH is an abstract model and should be treated as such. It is unfortunate that such caveats rarely make it across campuses into business/finance departments. The article itself clearly falls victim to this and commits the further sin of casually dismissing the transactional uses of bitcoin. EMH has issues and bitcoin may fail, but it is unlikely to be for the reasons the author cites.

baby 14y ago

Seems like the author never really understood bitcoins. Bitcoin is not a bubble. It's a way to move money efficiently on internet. The speculation around bitcoin was a bubble. Bitcoins will still remain used and useful as long as people use them.

illuminate 14y ago
"Bitcoin is not a bubble. It's a way to move money efficiently on internet." The two are by no means mutually exclusive.
- baby 14y ago
  This is exactly what I wrote.

bcoates 14y ago

Calling the Bitcoin Bubble "final refutation of the efficient-markets hypothesis" is a stretch. MtGox is opaque and illiquid for something that looks like a stock market, and the market is tiny and centered around the very long-shot possibility of distant future value. If you can't arbitrage a a market, EMH puts no bounds on how wrong it can be, and mtgox is very difficult to arbitrage, so the price wanders around chaotically between prices extreme enough to actually make risk-adjusted profit off them. The situation for options/futures is even worse than at mtgox, and a broad acceptance of bucket shop behaviors based on mtgox market feeds can't be helping. From top to bottom, this is not a market oriented towards the efficient discovery of prices.

bayesianhorse 14y ago
I think the main point about the EMH and Bitcoin is that a market can be quite efficient without anyone knowing that it is efficient or why this is so...

ryanthejuggler 14y ago

The fact that he calls the computations "useless" in his second paragraph proves he doesn't understand the concept. Miners are being rewarded for double-checking the validity of recent transactions... If he said the same of Visa's or American Express's computer computations he'd never get published!

qengho 14y ago

It is quite incorrect to say that "Historically, money arose from, and in conjunction with, this power." (the power of taxation by states). He gives no evidence for this claim except to reference a "controversial" book - perhaps controversial because of its wildly inaccurate thesis? Unless the contention is that humans traded solely by barter before states came along to tax them, mediums of exchange (money) obviously predate the statist invention of fiat money. In fact fiat money is a relatively recent phenomenon, as money was historically backed by precious metals long before states invented unbacked fiat money and central (statist) banking. Which doesn't in any way invalidate his argument that Bitcoin is a bubble. It's totally irrelevant to the Bitcoin issue. It's just wrong by itself. Another thing that's just plain wrong is the attempt to refute the efficient markets hypothesis (EMH). The only reason Bitcoin actually does have a value above 0 at the moment is precisely because statist meddling in the market has created a huge demand for an alternative to fiat money - such a huge demand in fact that people are willing to try almost anything, including Bitcoin, or even riskier methods with a high failure rate (such as J. Orlin Grabbe's early anonymous banking system DMT, or unaudited gold-backed e-currencies that may actually be backed by nothing at all, among many other examples). If we had uncrippled free-market gold-backed electronic currencies (such as e-gold was before it was attacked and destroyed by the feds) there would be zero demand for bitcoin as the existing currencies would have all the benefits of Bitcoin, while also being backed by a commodity with a base value (not 'intrinsic value'). So, it _might_ be a refutation of EMH if Bitcoin were to be successful long-term in an actual free market. As nowhere on this planet do we find anything even remotely resembling an actual free market, his argument against EMH is as much of a straw man as all the other examples that pinkos trot out as examples of "market failure" while pretending that there is a free market somewhere, which there isn't. All such examples are really examples of statist intervention failure, not market failure, as the market we are talking about is highly crippled and not remotely free.

gph1 14y ago
This is just fetishism. All currencies are fiat currencies, and all currencies are creatures of the state. If a currency is set at a fixed exchange rate to a precious metal, it's because a "statist fiat" made it so.

enoch_r 14y ago

> According to the efficient-markets hypothesis (EMH), which still dominates the analysis of financial markets, this should be impossible. The EMH states that the market value of an asset is equal to the best available estimate of the value of the services or income flows it will generate. In the case of a company stock, this is the discounted value of future earnings. Since Bitcoins do not generate any actual earnings, they must appreciate in value to ensure that people are willing to hold them. But an endless appreciation, with no flow of earnings or liquidation value, is precisely the kind of bubble the EMH says can’t happen. No. No no no no no. EMH doesn't say that everything must be priced according to the "best available estimate of the value of the services or income flows it will generate." For example, if I pay $20,000 for a car, that doesn't mean that the present value of the extra income I'll earn thanks to that car is $20,000. It might mean the car makes my life more pleasant and convenient. Dollars are valuable for exactly the same reason--since everyone I know will accept dollars instead of whatever it is they'd like to buy with dollars, having dollars makes my life extremely convenient. That, not the fact that I need them to pay taxes, is what makes dollars so valuable. The issue here is that there are network effects. Just as dollars are more valuable to me because they're used and accepted by everyone I know, or a fax machine is only valuable to me if I know someone who can receive my faxes, a currency is only valuable when someone else is willing to accept payment in it. This means that, as a currency is adopted by higher and higher proportions of the population (or as the perceived odds of that rise), its value also rises. Bitcoin definitely looks like a bubble to me. It's a small market, it's dominated by people with strong philosophical positions that predispose them towards BTC. And shorting is difficult. But the reasoning in the article is absurd.

thatthatis 14y ago
The EMH applies to market-traded securities. Your car is not a marketable security.
- enoch_r 14y ago
  That's probably a better way to put it. I guess the point is that EMH doesn't apply to BTC for some of the same reasons it doesn't apply to cars--both cars and currencies get much of their value from utility that's unrelated to the income flows they generate.