MAS and NY Fed Publish Report on CBDC Cross-Border Payments
New York’s Federal Reserve Bank and the Monetary Authority of Singapore (MAS) have collaborated on an endeavor titled “Project Cedar Phase II x Ubin+,” examining the use of a central bank digital currency (CBDC) for wholesale cross-border payments using one or more vehicle currencies.
The joint effort has culminated in the publication of a report detailing their findings and results. Commenting on the initiative, MAS Managing Director Leong Sing Chiong stated:
“The Cedar x Ubin+ experiment envisages a future digital currency landscape where central banks can enable interoperability of wholesale CBDCs to facilitate more efficient cross-border payment flows including for less liquid currencies, without requiring a common infrastructure.”
Exploiting positive DLT characteristics
Specifically, the New York Innovation Center (NYIC) of the NY Fed was the entity that contributed directly towards the research project. The work built on previous phases of Project Cedar. The objective was to explore perceived advantages of digital ledger technology (DLT) such as reduced settlement risk and reduced settlement time, in the context of cross-border payments.
The conventional system primarily uses the SWIFT financial messaging network. The approach is highly inefficient. It’s time-consuming and needlessly ties capital up in vostro and nostro accounts (accounts held for another entity from an account another entity holds). Tying up capital proves to be a liquidity headache for corporations and any business entity that gets involved with international trade settlement.
Smart contracts and off-chain messaging
Against that backdrop, the project team was focusing on harnessing the ability to effect atomic or real-time settlement using DLT. Having commenced the work in November, the project team decided to rely on hashed timelock smart contracts in order to bridge distinct ledgers, so as to effect cross-currency and cross-border transactions.
According to the report, the proposed system also relied on off-chain messaging functionality. Cross-border trade settlement often involves a number of stakeholders. Off-chain messaging can be beneficial in disseminating information relative to the process to all stakeholders.
The researchers found that each simulated payment scenario achieved end-to-end settlement in under thirty seconds on average, realizing the goal of near real-time settlement. In turn, that speed of settlement meant that stakeholders could be notified of payment finality within a matter of seconds. Certainty of settlement, and thus reduction in counterparty risk was achieved by simulating atomic settlement, such that transactions only settled if all legs in the cross-currency payment chain executed successfully.
From the point of view of interoperability and autonomy, the experiment demonstrated the ability to safely execute across multiple ledgers without the need to involve a centralized clearing authority or the establishment of a shared central network.
The Bank of International Settlement (BIS) recently highlighted the finding that on a daily basis, $2.2 trillion of foreign exchange transactions don’t use a payment versus payment (PvP) settlement mechanism. PvP is a less risky form of settlement where two currency legs are exchanged simultaneously. Singapore is more exposed than most in this regard. Therefore, the use of DLT to counteract that risk in line with the experiment’s findings would be a progressive step.
