## Central Bank Digital Currencies: 4 Questions and Answers

_IMF Blog, December 12, 2019_

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**Canonical URL:** [Central Bank Digital Currencies: 4 Questions and Answers](https://www.imf.org/en/blogs/articles/2019/12/12/central-bank-digital-currencies-4-questions-and-answers)

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## Bibliographic details
- Authors: Tobias Adrian, Tommaso Mancini-Griffoli
- Published: December 12, 2019

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### IMF’s role around CBDCs
- Authors: Tobias Adrian, Tommaso Mancini-Griffoli; date: December 12, 2019.
- The IMF can help in three ways:
  - Informing the policy debate: investigating implications of CBDC available across borders; drawing on in-house experts; examining cross-border payments and international monetary system questions that relate to the IMF’s mandate.
  - Convening parties: fostering cooperation across countries and stakeholders (central bankers, regulators, investors, entrepreneurs, academics) using its universal membership and public-institution status; examples include bi-yearly meetings, yearly “fintech roundtable,” and ad-hoc research events.
  - Helping countries develop policies: through surveillance work, Financial Sector Assessment Programs, and technical assistance; IMF teams have worked with countries to modernize payment systems, advise on legislation related to digital payments, and review plans to issue CBDC; support can include regional workshops and bilateral technical assistance missions.
- Guiding principle: each country must weigh pros and cons of CBDC depending on its particular circumstances.

### How the IMF views global development and implementation of CBDC
- Country approaches vary across three broad groups:
  - Active pilots and preparation: countries running pilot projects, increasing central-bank resources for CBDC and fintech research, partnering with private advisors, revising legislation, studying competing CBDC designs, and engaging publics and legislatures.
  - Scaled-up analysis and limited testing: countries that have increased resources for CBDC and payment-systems work but focus primarily on analysis and limited hands-on technology testing; CBDC remains an option but alternatives are also explored.
  - No immediate need: countries focusing on improving existing payment arrangements and strengthening regulation rather than pursuing CBDC now.
- Recent stimuli for increased interest: announcement of Facebook’s Libra initiative and reports of possible CBDC launch by the People’s Bank of China.

### Potential benefits of CBDC (as highlighted by central banks)
- Cost of cash: CBDC could lower costs associated with providing a national means of payment in countries with high cash-management costs due to vast territory or remote areas (including small islands).
- Financial inclusion: CBDC may provide a safe and liquid government-backed means of payment that does not require a bank account, useful where cash use is diminishing and banking penetration is low.
- Stability of the payment system: CBDC could enhance resilience where payment systems are concentrated among a few large (sometimes foreign) companies.
- Market contestability and discipline: CBDC could offer competition to large payments firms and cap rents they extract.
- Countering private digital currencies: domestically issued CBDC denominated in the domestic unit of account could reduce adoption of privately issued currencies denominated in foreign currencies.
- Support for DLT-based markets: DLT-based CBDC could facilitate automatic “payment-versus-delivery” or “payment-versus-payment” using smart contracts; some central banks may provide CBDC only to institutional participants to develop DLT-based asset markets.
- Monetary policy transmission: academic views include that an interest-bearing CBDC could increase response to policy-rate changes and could be used to charge negative interest rates in prolonged crises, potentially breaking the “zero lower bound” constraint if cash is made costly.

### Key challenges and risks (and design considerations)
- Banking-sector disintermediation: large-scale CBDC holdings could prompt deposit withdrawals from commercial banks, forcing banks to seek more expensive runnable wholesale funding or raise deposit rates, compress margins, or raise loan rates; competition with deposits in normal times depends in part on interest paid on CBDC.
- “Run risk”: in crises, depositors could shift to CBDC seen as safer and more liquid; credible deposit insurance, existence of safe liquid alternatives (government bond funds, state banks), and historical evidence suggest limited systematic runs toward such alternatives, but context matters; central banks would find it easier to meet withdrawals in CBDC than cash; in many countries, bank runs coincide with runs from the currency, so local-currency CBDC may not change flight-to-foreign-currency behavior.
- Central bank balance sheet and credit allocation: high CBDC demand could expand central bank balance sheets; central banks may need to provide liquidity to banks facing rapid funding outflows, taking on credit risk and making allocation choices that could open doors to political interference.
- International implications: reserve-currency CBDC available across borders could increase currency substitution (“dollarization”) in countries with high inflation and volatile exchange rates; these implications require further study; IMF staff are investigating.
- Costs and reputational risks: providing full-fledged CBDC can be costly and operationally complex—front-end wallets, customer interfacing, technology maintenance, transaction monitoring, AML/CFT responsibilities—with cyber, technological, and human-error risks that could harm central bank reputations.
- Design mitigation: some challenges can be attenuated by appropriate CBDC design choices.

### Synthetic CBDC and public-private arrangements
- Synthetic CBDC model described by IMF staff:
  - Private firms issue digital coins to the public (accounts or tokens leveraging DLT) and manage innovation and customer interfacing.
  - Central bank provides trust by requiring coins to be fully backed with central bank reserves and by supervising coin issuers.
  - Outcomes: preserves comparative advantages of private firms and central banks, induces competition among private firms, limits costs and some operational risks to the central bank.

### Alternatives to CBDC and complementarities
- Improved payment systems: several countries are improving inter-bank payment systems to achieve speed and convenience similar to digital currencies (example referenced: the Federal Reserve’s “FedNow” initiative for nearly instantaneous and low-cost settlement of inter-bank retail payments).
- Complementary reforms: public digital identities, common communication standards, open APIs, and data portability and protection standards can enhance payments and competition.
- CBDC complementarities:
  - DLT-based CBDC can spur DLT-based asset markets.
  - CBDC can operate outside the banking system and promote financial inclusion.
  - CBDC can provide competition to banks and encourage use of fast payment systems.
  - DLT-based CBDC could facilitate cross-border retail payments, complementing efforts to link traditional inter-bank payment systems.
- Recommendation: central banks should remain engaged in examining the full range of CBDC issues, including synthetic CBDC options, and deepen familiarity with new technologies.

*IMF Blog entry from IMF staff.*

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## References

- [synthetic CBDC](https://www.imf.org/en/Publications/fintech-notes/Issues/2019/07/12/The-Rise-of-Digital-Money-47097)

_Source: https://www.imf.org/en/blogs/articles/2019/12/12/central-bank-digital-currencies-4-questions-and-answers_
