Since the invention of the credit card in the 1950s, almost all payments by households and businesses in advanced economies have been made through one of four routes: cash, cheque, card or bank-to-bank. Most new innovation to date hasn’t changed that. Even when we tap our phone or watch on an ipad to pay – we’re still generally paying by either card or bank-to-bank transfer. But fintechs, and in some cases big technology firms, are now proposing to change this by using cryptoassets known as ‘stablecoins’ for transactions currently processed by retail or wholesale payments systems. The basic idea of a stablecoin is not dissimilar from a pegged currency. Early forms of cryptoassets such as Bitcoin have so far proved too volatile for widespread use in payments. ‘Stablecoins’ aim to address this by pegging themselves to a fiat currency or basket of fiat currencies. Most propose to maintain reserves or backing assets to defend this peg. While some stablecoins proposals are designed as investment products, most seek stability in pursuit of becoming a new way to pay for goods and services or make peer-to-peer transactions. Many propose to integrate into popular social media or online technology platforms. With this backdrop and an estimated 3 billion social media users worldwide, it’s not hard to imagine that some of these proposals could quickly reach significant scale. 9  including open banking reforms in the EU and the introduction of a payments competition regulator in the UK.
International standards explicitly call on payment systems to settle in central bank money when possible and where that’s not possible, to settle in commercial bank money and to strictly limit any credit and liquidity risk of the instrument being transferred and settled. However stablecoin arrangements propose to transfer new instruments that they will create themselves – and to settle most of their transactions across their own books. With the right regulation, stablecoins may be safe for use in systemic payments chains. But the protections these stablecoins would offer are currently big question marks. Some major stablecoin proposals offer no legal claim for holders. None. This is significantly different from how we currently pay: When my parents pay for their groceries using their debit card, the shop ultimately receives an electronic deposit in the shop’s bank account - a promise from the shop’s bank to redeem the amount deposited in local currency on demand. When – pre-COVID – my parents paid in cash, the shop got banknotes with a central bank promise to “pay the bearer.” Were they to pay in the future with some proposed stablecoins, the shop would just get a bunch of stablecoins. If the shop can’t sell the stablecoin to get local currency or other goods in an amount equivalent to the price of the grocery order, tough luck. Additionally many stablecoins propose backing in instruments that may have market and liquidity risk. While these risks might be acceptable for speculative investment purposes, payments are different.