BIS Economist Behind CBDC Push to Lead Korea’s Central Bank
Hyun Song Shin spent 12 years on the Bank for International Settlements, shaping how central banks take into consideration digital cash. On March 22, South Korean President Lee Jae-myung nominated him to lead the Bank of Korea. He replaces outgoing Governor Lee Chang-yong when the time period ends in April.
The economist who constructed the case for central bank-anchored digital forex should now ship it — for a forex that isn’t the US greenback.
The Case Against Stablecoins
Shin studied and taught at Oxford earlier than holding professorships on the London School of Economics and Princeton. He joined BIS in 2014 as Economic Adviser and Head of the Monetary and Economic Department.
In a March 2026 paper titled “Tokenomics and Blockchain Fragmentation,” Shin made his most detailed case but. Public blockchains want validators to preserve consensus. More decentralization means larger validator rewards, paid by customers by fuel charges. When charges spike, customers flee to cheaper chains. Fragmentation follows.
Stablecoins inherit this downside straight. A USDC token on Ethereum and one on Solana sit on separate ledgers with no native manner to talk. Moving between chains requires bridges that add price, delay, and hacking threat. The outcome, Shin argues, shouldn’t be a single financial community however a set of chain-specific silos.
This breaks what Shin calls the singleness of cash. In conventional finance, central banks assure par conversion throughout establishments. No such anchor exists on decentralized rails. His resolution: a unified ledger during which central financial institution cash, deposits, and tokenized property coexist on a single programmable platform.
From Theorist to Central Banker
At BIS, Shin may analyze and suggest. The viewers was each central financial institution. The stakes have been theoretical.
As BOK governor, every part modifications. South Korea doesn’t concern a reserve forex. The US is institutionalizing dollar stablecoins through the GENIUS Act, framing them as instruments to prolong greenback dominance. For reserve forex nations, absorbing personal stablecoin innovation reinforces sovereignty. For non-reserve currency nations, it could possibly erode sovereignty.
Shin can’t block greenback stablecoins — and he is aware of it. In a 2018 assembly with Kim Yong-beom, then vice chairman of the Financial Services Commission and now presidential chief of workers for coverage, Shin mentioned that cross-border crypto trades and outright bans would fail. He suggested that banks — the channel by which fiat liquidity flows into crypto — have been the best management level. Kim recounted this in his 2022 book.
That logic factors to a two-track method. Use the banking system as a gatekeeper to handle greenback stablecoin flows. At the identical time, construct a aggressive home various. The BOK launched section two of its CBDC mission “Hangang” on March 18, with the central financial institution issuing digital forex and industrial banks distributing deposit tokens. The structure maps onto Shin’s unified ledger idea. Together, the 2 tracks goal to maintain the Korean gained related in a panorama the place dollar-denominated digital cash is changing into the default infrastructure.
Can the Theory Survive Practice?
South Korea hosts one of many world’s largest crypto markets. If Shin’s two-track method works, it can function a reference case for each non-dollar financial system going through the identical stress.
Critics be aware actual obstacles — and another path. Some argue that South Korea ought to enable the personal issuance of Korean-won stablecoins quite than depend on a CBDC that will arrive too late. A regulated gained stablecoin may compete straight with greenback stablecoins on pace and accessibility, with out ready for the central financial institution to end constructing its platform.
A unified ledger additionally concentrates threat. If a single platform holds central financial institution cash, deposits, and tokenized property, a single failure may paralyze the whole monetary system. The resilience that comes from distributed infrastructure — mockingly, the very fragmentation Shin criticizes — can be misplaced.
Governance is one other unsolved downside. Projects like BIS’s Agora, which entails seven central banks and 43 monetary establishments, present that agreeing on who controls shared infrastructure is more durable than constructing it. Meanwhile, world stablecoin provide already tops $315 billion. Bridging protocols like Circle’s CCTP are patching cross-chain fragmentation from the personal facet. The market shouldn’t be ready.
Shin authored the idea. He now owns the end result.
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