Chile’s Central Bank Considers CBDC to Settle Tokenized Assets (BCCh)
The Central Bank of Chile (BCCh) is preparing to launch a proof of concept to simulate the transfer of tokenized assets between agents on a blockchain ledger using a wholesale central bank digital currency (CBDC) as the settlement instrument. [Source: BCCh]
Optimal Policy for Financial Market Tokenization (IMF)
The IMF published a paper that analyzes how policymakers should approach the emergence of broker-led platforms that tokenize financial assets, promising efficiency gains but risking market fragmentation. The authors model competing brokers—each with varying numbers of clients—who can form coalitions to set up tokenized markets offering faster, cheaper settlement, but which may exclude rivals. The resulting equilibrium tends to produce partial coalitions, meaning either excessive investment in platforms (where private incentives for trade diversion outweigh social costs) or insufficient tokenization (excluding brokers who would increase welfare), while the welfare-maximizing outcome is either full participation or no tokenization. The analysis shows that neither mandating interoperability among platforms nor public-private cost-sharing alone is sufficient for optimal market structure—but their combination is. Even if open-access (public blockchain) platforms are allowed, policy intervention is still required to achieve the social optimum. Thus, the study suggests efficiency gains from tokenization are real, but policy must carefully balance interoperability mandates and cost sharing to avoid market fragmentation or inefficient investment. [Source: IMF]
Blockchain Consensus Mechanisms: A Primer for Supervisors (IMF)
The IMF published an update of a 2022 paper on blockchain consensus mechanisms such as proof-of-work, proof-of-stake, and Solana’s Tower BFT/proof-of-history, emphasizing their mechanics, incentives, and supervisory risks. The paper details operational risks (e.g., centralization of mining, energy use, network attacks), economic and market integrity challenges (e.g., validator dominance, slashing, liquid staking, maximal extractable value), and settlement finality differences across major networks. Additionally, it reviews scalability solutions (state channels, rollups, sidechains), highlighting the “scalability trilemma” and new complexities and risks these layer 2 solutions introduce. It notes regulatory challenges around staking, embedded supervision, and the trend toward distinguishing mature (decentralized) vs. centralized networks in regulation. [Source: IMF]
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I produce a monthly digest of digital fiat currency (DFC) developments exclusively for the official sector (e.g., central banks, ministries of finance and international financial institution (e.g., the BIS, IMF, OECD, World Bank)) plus academics and firms that are active in the DFC space (commercial banks, technology providers, consultants, etc.). (DFCs include central bank digital currency (CBDC), stablecoins and tokenized deposits.) It goes out via email on the first business day of every month, and if you’re interested in being on the mailing list, please email me at john@kiffmeister.com.
