How Paypal robs the Bank of England

Digital currencies might start creating a sticky situation for central banks.

Have you ever wondered how the rise of digital currencies will impact on the monetary base, and the effects that will have on seigniorage revenue to governments worldwide? No? Well, this pair of articles by the Financial Times' Izabella Kaminska, "Why central banks should take charge of their digital currencies" and "Turning mobile money into M0" is interesting nonetheless.

Kaminska examines the typical problem central banks have with digital currencies, which is that they tend to mess around with the way banks expect the money supply of the nation to work. The immediate downside of that is that it impacts on seigniorage, the revenue accrued to a government by its right to mint coinage.

In other words, when you use PayPal rather than posting a £50 note, you need never hold that currency, and the government never receives the revenue for having printed it.

She writes:

Consequently, what you end up with is something very different to cash of the realm. In many ways, it’s worse than zero-yielding money due to the natural decay associated with transactional, creation and redemption costs. The other point is that Safaricom [the vendor of a hugely popular Kenyan mobile currency] is actually behaving much like a quasi-autonomous state within a state that’s issuing its own private money system, the value of which is constantly pegged to the official currency of the land.

How can nations fight back? (Assuming, of course, they ought to fight back — but that revenue is likely to be mighty tempting.) One possibility is by working with digital currency vendors to create payment mechanisms which don't require holding a parallel currency to work. And make no mistake, even though PayPal denominates its accounts in pounds and dollars, it's a parallel currency in all but name.

Jean-François Groff, one of the pioneers of the Web at CERN, is working on that option. Mobino, his company, is a mobile payment system which works on real-time debiting, not on keeping a float of a second currency on tap:

Mobino’s system aims to cut out as many intermediaries from the debit process as possible by getting you, the customer, to strike up a single direct debit agreement with itself. The company then charges the customer for transactions conducted with partner vendors, whilst the customer deals only with Mobino rather than a multitude of online or retail vendors.

And if that scheme was done by Mobino — or a similar system — working with a central bank, then the costs of running it could be funded from the seigniorage revenue it returns to the government. Rather than the cost of "printing" money being the actual ink and paper, it would become the price of maintaining servers and bandwidth.

In an ideal state-controlled money world, you could imagine the system mutating into one where the central bank itself ended up billing you directly for the use of their digital cash. So, rather than withdrawing physical cash to conduct your payments, you’d be transacting state-issued digital cash, now credited or debited from your account as quickly as a bank credits or debits cash to you at the ATM wall.

But, while Kaminska mentions it in passing, it would be interesting to see the analysis applied to Bitcoin. Lord knows the currency has its flaws, but it's the only one of the successful(ish) mobile payment systems which actually embraces the fact that it is a parallel currency — and a freely floating one, at that. The Bitcoin ecosystem has a specific method for distributing the seigniorage it generates, but also gradually reduces that rate; by 2140, the system will likely be in de-facto deflation.

By moving the transaction entirely into a parallel currency, the system is also more efficient than even Mobino could ever hope to be — provided you don't plan on converting Bitcoins into real-world money. If you do, things get trickier; the exchanges have had a number of high-profile failures, and are probably the weakest point in a network which manages to combine cryptographic perfection with an incredible amount of possibilities for human error.

It may be the case that central banks have to start examining what their role would be in a world of digital currencies; but if they do, it may be better for them to skip the sticking-plaster world of PayPal and Mobino and move straight to something designed for an all-digital world from the start.

Photograph: Getty Images

Alex Hern is a technology reporter for the Guardian. He was formerly staff writer at the New Statesman. You should follow Alex on Twitter.

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Labour to strip "abusive" registered supporters of their vote in the leadership contest

The party is asking members to report intimidating behaviour - but is vague about what this entails. 

Labour already considered blocking social media users who describe others as "scab" and "scum" from applying to vote. Now it is asking members to report abuse directly - and the punishment is equally harsh. 

Registered and affiliated supporters will lose their vote if found to be engaging in abusive behaviour, while full members could be suspended. 

Labour general secretary Iain McNicol said: “The Labour Party should be the home of lively debate, of new ideas and of campaigns to change society.

“However, for a fair debate to take place, people must be able to air their views in an atmosphere of respect. They shouldn’t be shouted down, they shouldn’t be intimidated and they shouldn’t be abused, either in meetings or online.

“Put plainly, there is simply too much of it taking place and it needs to stop."

Anyone who comes across abusive behaviour is being encouraged to email validation@labour.org.uk.

Since the bulk of Labour MPs decided to oppose Labour leader Jeremy Corbyn, supporters of both camps have traded insults on social media and at constituency Labour party gatherings, leading the party to suspend most meetings until after the election. 

In a more ominous sign of intimidation, a brick was thrown through the window of Corbyn challenger Angela Eagle's constituency office. 

McNicol said condemning such "appalling" behaviour was meaningless unless backed up by action: “I want to be clear, if you are a member and you engage in abusive behaviour towards other members it will be investigated and you could be suspended while that investigation is carried out. 

“If you are a registered supporter or affiliated supporter and you engage in abusive behaviour you will not get a vote in this leadership election."

What does abusive behaviour actually mean?

The question many irate social media users will be asking is, what do you mean by abusive? 

A leaked report from Labour's National Executive Committee condemned the word "traitor" as well as "scum" and "scab". A Labour spokeswoman directed The Staggers to the Labour website's leadership election page, but this merely stated that "any racist, abusive or foul language or behaviour at meetings, on social media or in any other context" will be dealt with. 

But with emotions running high, and trust already so low between rival supporters, such vague language is going to provide little confidence in the election process.