The instinct of government is to borrow first then deal with consequences later, however default hangs like a guillotine over all the major currencies. A run on any of them - Euro, Pound Sterling, Yen, Won, Dollar - would quickly become a chaotic run on all of them, one and then another. Such a run is an article in Bloomberg away.

I know what a run on the bank is, but you got me with this concept of a run on a currency. What is it?

If you said there would be a run on one currency, I would have assumed it meant people massively selling the currency and converting cash assets into some other currency. But you talk about a run on all currencies at once. Where would the cash go?

But you talk about a run on all currencies at once. Where would the cash go?

This is a good, hard question to answer! Such a phenomenon hasn't happened before! In this instance, the cash - the paper - would remain, values would sharply diminish. Post-modern credit- based 'Money' only exists insofar as it is useful in credit transactions. If it is useless there, it's utility elsewhere is negligible.

I can only honestly answer that any sovereign default by any of the major industrialized nations would not leave 'survivor' currencies, that is any currencies having much 'wealth value' at all. Since all the major currencies are more or less identical and are all debt based and all require acceptance of value as a matter of faith, the collapse of one could hardly fail to cast fatal doubt upon the rest. This is not so much a matter of disavowing one particular creed in favor of another, it is more a matter of dismissing all creeds together, then dismissing the entire creed concept.

This kind of fratricide - the war of all against all - is happening right now in the other markets, where different services - stocks, bonds, commodities, swaps, interbank lending, options, real estate - are subject to runs in turn with the markets all declining in chaotic fachion. The complexity and volatility of the unwinding transactions transmits the instability of the markets themselves against the values of all participants.

In a default scenario, a creditor nation would race to recover as much currency (of their choice) as they could for what bonds they hold, however denominated ... for any reason at all. This could be a Korean government trying to obtain local currency for Yen bonds or Saudi government 'dumping' Treasuries for Euros. At this, government creditors would then hesitate to make any more loans or accept any more of a particular currency as repayment for outstanding debt - as is happening in the interbank lending sector. With the commingling of currencies, if one is unacceptable, all would eventually be unacceptable as well. The 'laundering process' of trading one currency for another and another and so forth ... would be the visible run. The actual damage would be don by the freeze in lending, amplified by the 'noise' in the currency and related swaps markets. In a short time the damage would be done. Without the flow of funds and credit the actual value of the money so engaged in the credit transactions would soon be zero.

Thanks for your answer. It seems that my intuition about what a run on the currency is was right.

Call me dense if you want but I still don't get this idea of a run on all currencies at once. Here are a few areas that don't add up in my mind.

the cash - the paper - would remain, values would sharply diminish. Post-modern credit- based 'Money' only exists insofar as it is useful in credit transactions. If it is useless there, it's utility elsewhere is negligible.

If paper remains and credit disappears, isn't this the very definition of deflation? In such a scenario money gains value and a hoarding mentality installs. This would be the opposite of a run on a currency.

Since all the major currencies are more or less identical and are all debt based and all require acceptance of value as a matter of faith, the collapse of one could hardly fail to cast fatal doubt upon the rest. This is not so much a matter of disavowing one particular creed in favor of another, it is more a matter of dismissing all creeds together, then dismissing the entire creed concept.

This dismissing of the creed concept is beyond my ability to imagine. Every economic actor depends on having a monetary system to execute transactions. They all need a monetary system to assign a value to assets and pay taxes. There is no substitute to money to perform any of these functions. This is obvious to everyone. If people stop believing in the creed of fiat money, they may as well slit their own throat. Things have to be extremely dire for a long time before the creed in fiat money goes away.

Belief systems are very sturdy. We have seen in the case of peak oil how people can deny the existence of problems in spite of mountains of evidence. Wont' this same psychological mechanism support the creed of fiat money? I can see how the collapse of one currency may cast doubts on others, but I don't see how the doubts can be fatal. People will just do a risk analysis and put their trust in what they perceive to be the less bad option.

The 'laundering process' of trading one currency for another and another and so forth ... would be the visible run. The actual damage would be don by the freeze in lending, amplified by the 'noise' in the currency and related swaps markets. In a short time the damage would be done.

Isn't the credit market already frozen?

Timing is everything; just as our conversation got underway, aeldric's topic appeared on TOD Australia! "The Failure of Networked Systems: The Repercussions of Systematic Risk"

You are far from being dense, this is a very valid discussion. The currency issues have not been resolved by economists including the central bank chairmen as well as many other thinkers and traders I personally admire. It is part of the big 'Inflation vs. Deflation' argument. The inflationists suggest there is no danger to running large deficits denominated in dollars bacause the resulting overseas fraction of our debts can be paid for with printing press money; inflated out of existance. The deflationists suggest that the shrinkage of money generally available would make a default less and less likely, as the dollar would maintain inherent value. This would be true even with the large increases in money at the institutional level resulting from the various stimulus and rescue attempts by central banks. This is an ongoing mental puzzle for many thinkers, this includes you, me, and a lot of others here on TOD. I certainly don't have all the answers; the biggest issue to to figure a way out of this mess.

I personally don't think the inflation scenario is possible. In order for this to work, our creditors would have to accspt the printing press dollars knowing full well these dollars are being devalued by the process of their acceptance. In other words, the only way the dollar can maintain value in an inflationary context is for dollar buyers not to accept them. So far, our creditors are accepting dollars, and lending them back to us as well, so the level of inflation-of-the- moment is considered acceptably small.

Meanwhile, the credit swap and bond markets are reflecting concern about the worthiness of the US as a debtor; this is despite or because of the ongoing deflation.

We have a multi- polar situation with many contradictions.

Partly because of deflation the default scenario seems structurally unlikely to most economists that I follow. Unfortunately, in our ironic universe, the least- likely appearing event is what actually most likely to happen.

If paper remains and credit disappears, isn't this the very definition of deflation? In such a scenario money gains value and a hoarding mentality installs. This would be the opposite of a run on a currency.

This is of course true, but there are two things happening because of stratification of the money system. Goods are declining in value relative to currency to most of us in the real world - and credit is shrinking - which is deflation. Meanwhile, back at the ranch, there are trillions of loose fiat dollars floating around the banking system worldwide looking for something to destroy. The supply and demend situation at this level makes dollars tremendously cheap relative to goods, which is inflationary. For good or ill, all these dollars are held as if by gravity within the circle of high finance, taking the place of monies that have vanished into bad loan rat-holes.

In my opinion, what matters most to creditors is not so much the goods/dollar relationship of the moment, rather the absolute ability of the US to pay its debts. Relative value here is an indicator of ability to pay, or willingness. If inflation appeared to start leaking out of the tight circle of high finance it would instantly signal our creditors the US is trying to inflate its debts out of existance.

At that point, our creditors would refuse to accept our dollars, or would demand higher interest rates for loans. These rates would become onerous for the US to pay due to the size of our borrowings. Either would precipitate a race to unload the unwanted dollars or dollar- denominated securities for whatever else of value could be had; gold, commodities or polyester leisure suits from the 1970's.

I still don't get this idea of a run on all currencies at once.

This run would be by central banks or international finance companies. Unfortunately, the run would not likely be limited to one or two currencies, since international finance is a complex, interconnected and overloaded system. The end would be a general breakdown similar to the network malfunction described by aeldric. You can insert your own scenario, but a likely one would have the other fiat currencies considered as proxies for the now- unloved and unwanted dollar ... currencies bought and paid for in dollars for the sole purpose of being traded in its place. These currencies would soon enough be unmasked and dumped in their turn ...

Eventually, the US would run out of currencies to buy; since we borrow so much and consume so much overseas goods, any secondary currency - even yen - would have to be massively printed ... a 'run on all currencies'.

Ultimately ... the idea of fiat money itself could be judged along with floating exchange rates, computerized over the counter capital flows, hedging with swaps, having no centralized money disciple or treaty structure and having no 'lender of last resort' to answer demands for some, any or all currency in times of stress.

What would happen afterward, besides throat- cutting and window sill jumping is anyone's guess.

The credit markets are frozen to the degree that most transactions require a (much) higher rate of return. It is unlikely that more expensive money will remain confined to the banking and credit markets. Higher rates by themselves could precipitate a run on the dollar as higher rates could be interpreted as a pricing of increased repayment risk ... even if repayment was not an issue.

Great post.

The only thing I think thats missing is time. There is a huge difference between loaning the US x amount for 1 month and thirty years.

They way out of this dilemma is to loan money over ever shorter periods for ever higher interest rates. Its the loan shark approach and it works regardless of how depressed or messed up the economy or in this case the borrower is.

If your loaning money at 300% annual rates then its all good.

Seriously though when things get this messed up you simply fall back to traditional loan shark approaches. You don't really car what they do if your loan duration is short enough and your interest rate high enough you can extract money from the most worthless of borrowers.

I concur that this is a great post.

It is funny that you point out aeldric's article. I have two decades of professional experience with computer networks and cascading failures. I did troubleshoot them, I fixed them, analyzed them after the fact and designed networks to make sure the impacts of failures were mitigated or contained and critical functions kept working. To someone with my background, aeldric's article is amusingly simplistic. But this article fulfills the purpose if was written for and I saw no point in raining on the parade. I didn't replied to aeldric's article.

But for purpose of this discussion, there is an important detail that needs to be fleshed out. When cascading failures occur, it is normal and usual to have to identical devices such as routers or switches that are connected next to each other in the network and one of them is part of the cascade of failure where the other keeps running just fine. The reasons are that although the devices are identical to the point of being of the same make and brand, their interconnections with the rest of the world are totally different.

Lessons to be learned: it is not because two components of a network are connected and identical that they will behave the same. The specifics of the interconnections are of paramount importance.

I think this applies to this discussion of the currencies. They are structured the same and are connected. But they have different relationships with the various national economies and national governmental debt. My expectation is they will behave differently unless there is something in the specifics of their interconnections that will cause them to behave the same.

This is part of why I have such a hard time imagining a run on all currencies at once. I look for a specific cause and find only general principles that I think are unconvincing.