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Showing posts with the label fungibility

Revisiting stablecoins

Source: Gravity Glue (2014) Cryptocurrencies were supposed to destroy the traditional monetary system. Ten years on, where are we? Bitcoin has been wildly successful, but as a financial game --not as a medium of exchange. It's a fun (and potentially profitable) way to gamble on what Keynes once described as what "average opinion expects the average opinion to be." But no one really uses it to pay for stuff. It's nature as a gambling token makes it too awkward to serve as a true substitute for banknotes and credit cards. A number of stablecoins have emerged over the last five or six years. (I first wrote about stablecoins four years ago). Like bitcoin, stablecoins exist on a blockchain. But unlike bitcoin, these tokens have a mechanism for ensuring their stability. Stablecoin owners can convert tokens at par into underlying dollar balances maintained in the issuer's account at a regular bank. So stablecoin entrepreneur have basically built a new blockchain layer...

The difference between two colourful bits of rectangular paper

David Andolfatto had a provocative and open-ended tweet a few days back: The difference between money and debt. pic.twitter.com/CSQuLzUJPU — David Andolfatto (@dandolfa) April 26, 2019 We see two coloured pieces of paper, both with an old dead President on it. They each have a face value of $500. Both are issued by a branch of the government, the $500 McKinley banknote (at right) by the Federal Reserve while the $500 Treasury bond (at left) by the Treasury. Both are bearer instrument: anyone can use them. So why do we bestow one of them the special term "money" while the other is "credit"? I mean, they seem to be pretty much the same, right? The word money is an awful word. It means so many different things to different people that any debate invoking the term is destined to go off-track within the first fifty characters. So I'm going to try and write this blog post without using the term money. Why are the two instruments that David has tweeted about fundament...

Two notions of fungibility

A few centuries ago, lack of fungibility used to be a big weakness of monetary systems. But technological and legal developments eventually solved the problem. Nascent systems like bitcoin are finding that they must wrestle all over again with fungibility issues. Fungibility exists when one member of a population of items is perfectly interchangeable with another. So for instance, because your grain of wheat can be swapped out with my grain without causing any sort of change to our relative status, we would say that wheat grains are fungible. Fungibility is a desirable property of a monetary system. If all monetary items are interchangeable, then trade can proceed relatively smoothly. If monetary items are not fungible, then sellers cannot accept the monetary item without pausing for a few moments to verify and assay it, and this imposes frictions on trade.    In this post I argue that there are two ways for something to be fungible. They can be fungible for physical reasons or for leg...

Tainted money

In many parts of the world, cash held in ATMs or in cash-in-transit vehicles is protected by so-called intelligent banknote neutralization technology . When a thief tries to force the ATM open, plastic packs filled with dye explode, spraying both the thief and the banknotes. These notes have now been demarcated as stolen. A shopkeeper may refuse to accept marked notes or may only accept them at a large discount to their face value. At this point, cash has ceased to be fungible. One banknote is not a perfect substitute for another. The dye used in banknote neutralization is often mixed with a taggant , a chemical marker that contains a unique combination of elements chosen from thirty or so rare earth metals. This ensures that a given block of cash is protected by a one-of-its-kind dye pack. So if the authorities apprehend the ink-stained thief with the marked cash, they can actually trace the stuff back to its original owner and return it. This incentivizes any would-be ATM thief to th...

Paying interest on cash

Freigeld , or stamp scrip, is designed to pay negative interest, but it can be re-purposed to pay positive interest. Remember when global interest rates were plunging to zero and all everyone wanted to talk about was how to set a negative interest rate on cash? Now that interest rates around the world are rising again, here's that same idea in reverse: what about finally paying positive interest rates on cash? I'm going to explore three ways of doing this. As for why we'd want to pay interest on cash, I'll leave that question till the end. ------- The first way to pay interest on cash is to use stamping. Each Friday, the owner of a bill—say a $50 note—can bring it in to a bank to be officially stamped. The stamp represents an interest payment due to the owner. When the owner is ready to collect his interest, he deposits the note at the bank. For example, say that 52 weeks have passed and 52 stamps are present on the $50 note. If the interest rate on cash is 5%, then th...

An example of tax-driven money during the greenback era

Cartoon from 1864 poking fun at politicians and greenbacks ( source and explanation ) During the greenback era, the Union government issued irredeemable paper money to help pay for its war against the Confederates. What many people don't realize is that there were actually two different strains of greenbacks—those printed before March 1862 and those printed after. Although these two strains had only slightly different properties, they were not fungible with each other and would go on to have drastically different values in the marketplace. Looking at the respective properties of each type gives some insights a thorny problem: why do colored bits of paper money have value? One classic explanation for the value of fiat money is so-called 'tax-backing.' If the government stipulates that taxes must be paid using government-issued chits of paper, then that will be sufficient to give those chits a positive value. Back in 1910 economist Philip Wicksteed was one of the first econom...

When a rising stock market is a bad thing

If the world had a single cauldron for mixing various monetary phenomena, it would be Zimbabwe. Over the last two decades, it has experienced pretty much everything that can happen to money, from hyperinflation to deflation, demonetization to remonetization, dollarization and de-dollarization, bank runs, bank walks, and more. Adding to this mix, the Zimbabwe Industrial Index—an indicator of local stock prices—has recently gone parabolic, having more than tripled over the last twelve months. That's a good sign, right? Beware, these gains aren't real. As is often the case in Zimbabwe, the rise in stock prices is a purely monetary phenomenon. Ever since the great Zimbabwean hyperinflation led to the domestic currency becoming worthless in 2008, U.S. dollars have served as the nation's currency and unit of account. However, Zimbabwe's central bank, the Reserve Bank of Zimbabwe (RBZ), has spent much of the last two or so years surreptitiously bringing a new parallel monetary...

Leaving a monetary union is difficult, but Hawaii pulled it off

In campaigning for a departure from the Euro, both France's Marine Le Pen and Italy's Beppe Grillo,  make the process sound easy. But one does not simply walk out of a monetary union. There are all sorts of messy problems to deal with, including harmful bank runs, massive banknote shortages, and long legal battles with investors over wealth confiscation and the redenomination of debts. I recently stumbled on a successful and rarely-discussed exit from a monetary union: Hawaii in 1942. Hawaii's was a different sort of exit than a potential French or Italian euro exit. Whereas the latter are reactions to being straitjacketed in the face of a slow and grinding recovery from financial crisis, Hawaii's exit was executed in anticipation of a potential military invasion. Despite differing motivations, it's worth investigating the Hawaiian episode to see what it takes to pull off a successful exit. To understand the course of events, I drew on several Fed bulletins from 194...