Central Bank Digital Currency

1. What Is a CBDC

A Central Bank Digital Currency (CBDC) is a digital form of a country's fiat currency issued and backed by its central bank. It is a state-issued digital currency, distinct from cryptocurrencies and stablecoins.

2. How It Works

A CBDC is issued as a direct liability of the central bank, typically via a two-tier model where commercial banks distribute it to the public through digital wallets. Designs vary: account-based systems link balances to identities; token-based systems work more like cash. Most pilots run on permissioned infrastructure that the central bank controls, with programmability, offline payments, and programmability as design options.

3. Why It Matters

CBDCs could reshape monetary systems, payment rails, and financial inclusion — but they also raise privacy, surveillance, and disintermediation concerns that conflict with crypto's decentralization ethos. Their design choices (privacy, programmability, interest-bearing or not) will influence the global payments landscape and the demand for private digital money.

4. Key Facts

• Over 100 countries are exploring CBDCs (China's e-CNY is the largest pilot)
• The EU's digital euro and US efforts remain in design phases
• Programmable money can restrict or earmark how funds are used
• Privacy is the most contested design dimension

5. Related Concepts

• stablecoin
• fiat
• payment-rail
• regulation