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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Harriet Harman warns that the Brexit debate has been dominated by men

The former deputy leader hit out at the marginalisation of women's voices in the EU referendum campaign.

The EU referendum campaign has been dominated by men, Labour’s former deputy leader Harriet Harman warns today. The veteran MP, who was acting Labour leader between May and September last year, said that the absence of female voices in the debate has meant that arguments about the ramifications of Brexit for British women have not been heard.

Harman has written to Sharon White, the Chief of Executive of Ofcom, expressing her “serious concern that the referendum campaign has to date been dominated by men.” She says: “Half the population of this country are women and our membership of the EU is important to women’s lives. Yet men are – as usual – pushing women out.”

Research by Labour has revealed that since the start of this year, just 10 women politicians have appeared on the BBC’s Today programme to discuss the referendum, compared to 48 men. On BBC Breakfast over the same time period, there have been 12 male politicians interviewed on the subject compared to only 2 women. On ITV’s Good Morning Britain, 18 men and 6 women have talked about the referendum.

In her letter, Harman says that the dearth of women “fails to reflect the breadth of voices involved with the campaign and as a consequence, a narrow range [of] issues ends up being discussed, leaving many women feeling shut out of the national debate.”

Harman calls on Ofcom “to do what it can amongst broadcasters to help ensure women are properly represented on broadcast media and that serious issues affecting female voters are given adequate media coverage.” 

She says: "women are being excluded and the debate narrowed.  The broadcasters have to keep a balance between those who want remain and those who want to leave. They should have a balance between men and women." 

A report published by Loughborough University yesterday found that women have been “significantly marginalised” in reporting of the referendum, with just 16 per cent of TV appearances on the subject being by women. Additionally, none of the ten individuals who have received the most press coverage on the topic is a woman.

Harman's intervention comes amidst increasing concerns that many if not all of the new “metro mayors” elected from next year will be men. Despite Greater Manchester having an equal number of male and female Labour MPs, the current candidates for the Labour nomination for the new Manchester mayoralty are all men. Luciana Berger, the Shadow Minister for mental health, is reportedly considering running to be Labour’s candidate for mayor of the Liverpool city region, but will face strong competition from incumbent mayor Joe Anderson and fellow MP Steve Rotheram.

Last week, Harriet Harman tweeted her hope that some of the new mayors would be women.  

Henry Zeffman writes about politics and is the winner of the Anthony Howard Award 2015.