A Central Bank Digital Currency (CBDC) is a digital form of a country’s fiat currency, issued and controlled by its central bank.
It’s a direct liability of the central bank, just like physical cash.
Unlike decentralized cryptocurrencies like Bitcoin, a CBDC is centralized and backed by the full faith and credit of the government, making its value stable.
How Does Central Bank Digital Currency (CBDC) Work?
CBDCs can be designed in different ways, but the two main types are retail and wholesale.
- Retail CBDC: This type is intended for use by the general public for everyday payments. It’s a digital equivalent of banknotes and coins, allowing individuals and businesses to hold digital currency directly with the central bank or through commercial banks.
- Wholesale CBDC: This is designed for financial institutions to settle interbank transactions more efficiently. It’s essentially a digital version of central bank reserves, aiming to streamline large-value payments and securities settlement.
The underlying technology can vary, from a centralized database to a distributed ledger technology (like a blockchain), but the key difference from private digital currencies is the central bank’s control. Transactions are secure and transparent, and the system is designed to be highly resilient and scalable.
Potential Benefits
- Improved Payments: CBDCs can facilitate faster, cheaper, and more efficient domestic and cross-border payments by removing intermediaries and reducing transaction costs.
- Financial Inclusion: They can provide a safe and reliable way for unbanked and underbanked populations to access financial services, as a CBDC can be held and transacted using a simple mobile device without a traditional bank account.
- Monetary Policy Effectiveness: Central banks could have more direct control over the money supply and potentially implement monetary policy more precisely, for instance, by directly issuing stimulus payments to citizens.
- Reduced Risks: A CBDC offers a stable and secure alternative to private digital currencies and stablecoins, which can be prone to volatility and “bank-run” dynamics if not properly backed.
Potential Risks and Concerns
- Financial Stability: A widespread shift from commercial bank deposits to a CBDC could reduce the funding available for commercial banks to lend, potentially increasing their funding costs and impacting their ability to provide credit.
- Privacy and Surveillance: A major concern is the potential for government surveillance. A CBDC could create a digital trail of every transaction, raising significant privacy concerns and potentially allowing for the government to monitor or even control how money is spent.
- Cybersecurity: A centralized CBDC system would be a highly attractive target for cyberattacks by both state and non-state actors, posing a systemic risk to a nation’s financial infrastructure if compromised.
- Disintermediation of Banks: If a CBDC is held directly with the central bank, it could bypass commercial banks, changing their role and potentially destabilizing the traditional banking system.
Global Examples of Central Bank Digital Currency (CBDC)
Many countries are at different stages of exploring, piloting, or launching a CBDC. Here are a few notable examples:
1. China’s Digital Yuan (e-CNY) 🇨🇳
China is a leader in the development of a large-scale retail CBDC. The e-CNY (or digital renminbi) is a major pilot project with the primary goals of improving the efficiency of its domestic payment systems and providing a backup to its highly concentrated private payment services like Alipay and WeChat Pay. The e-CNY uses a two-tiered system where the central bank issues the digital currency to commercial banks, which then distribute it to the public. Trials have been conducted in numerous cities, allowing citizens to use the digital currency for a wide range of transactions, from paying for groceries to riding public transport.
2. Nigeria’s e-Naira 🇳🇬
Nigeria was the first country in Africa to launch a CBDC. The e-Naira was introduced in October 2021 with the aim of promoting financial inclusion, improving the efficiency of the payment system, and reducing the cost of cash management. Adoption has been slow, however, due to a number of challenges including weak technology infrastructure and limited public awareness. To incentivize use, the government has offered discounts for transactions made with the e-Naira.
3. India’s Digital Rupee (e₹) 🇮🇳
The Reserve Bank of India (RBI) is actively piloting its CBDC, the Digital Rupee (e₹). It is being tested for both wholesale and retail use. The retail pilot allows users to transact with merchants by scanning QR codes, similar to existing digital payment methods. A key motivation for India is to offer a safe, stable, and sovereign-backed digital currency that can coexist with existing payment systems while also improving the efficiency of high-value transactions between financial institutions.
4. The Bahamas’ Sand Dollar 🇧🇸
The Bahamas’ Sand Dollar is a groundbreaking example of a live retail CBDC. Launched in 2020, it was one of the first fully deployed CBDCs in the world. The primary goal was to improve financial inclusion for the scattered island population, especially those who may not have easy access to a physical bank branch. The Sand Dollar allows residents to transact using a digital wallet on their mobile phones, making payments more accessible and efficient across the archipelago.
Wholesale Central Bank Digital Currency (CBDC) Projects
While some countries are focusing on retail CBDCs for the public, others are exploring wholesale CBDCs for interbank use. For example:
- The Eurosystem (European Central Bank and other central banks of the Eurozone) is in the preparation phase for a Digital Euro, with a focus on both retail and wholesale applications.
- The Bank of England is considering a “digital pound” to support payments, but with a strong focus on maintaining financial stability.
- In the United States, the Federal Reserve Bank of Boston and MIT have collaborated on Project Hamilton, a research initiative that explored the technology behind a potential wholesale U.S. CBDC.
In summary, Central Bank Digital Currency (CBDC) is a digital form of a country’s national currency, issued and controlled by the central bank.
It is different from private digital currencies because it is a direct liability of the central bank and holds the same legal status and value as physical cash.
CBDCs are being developed and piloted around the world with various goals, ranging from improving payments to promoting financial inclusion.