cbdc
Executive summary
Central banks have been providing trusted money to the public for hundreds of years as part of their
public policy objectives. Trusted money is a public good. It offers a common unit of account, store of value
and medium of exchange for the sale of goods and services and settlement of financial transactions.
Providing cash for public use is an important tool for central banks.
Yet the world is changing. Even before Covid-19, cash use in payments was declining in some
advanced economies. Commercially provided, fast and convenient digital payments have grown
enormously in volume and diversity. To evolve and pursue their public policy objectives in a digital world,
central banks are actively researching the pros and cons of offering a digital currency to the public (a
“general purpose” central bank digital currency (CBDC)). Understanding of CBDCs has advanced
significantly in the last few years. Published research, policy work and proofs-of-concept from central
banks have gone a long way towards establishing the potential benefits and risks.
For the central banks contributing to this report, the common motivation for exploring a general
purpose CBDC is its use as a means of payment. Providing cash to the public is a core responsibility of
central banks and a public good. All the contributing central banks commit to continue providing cash as
long as there is public demand. Yet a CBDC could provide a complementary central bank money to the
public, supporting a more resilient and diverse domestic payment system. It might also offer opportunities
not possible with cash while supporting innovation.
CBDC issuance and design are sovereign decisions to be made by each jurisdiction. This report
is not about if or when to issue a CBDC. Central banks will make that decision for their jurisdictions (in
consultation with governments and stakeholders). None of the central banks contributing to this report
have reached a decision on whether or not to issue a CBDC. Instead, this report advances the foundational
international work by outlining common principles and the key features a CBDC and supporting
infrastructure would need in order to contribute to central bank public policy objectives.
The principles emphasise that: (i) a central bank should not compromise monetary or financial
stability by issuing a CBDC; (ii) a CBDC would need to coexist with and complement existing forms of
money; and (iii) a CBDC should promote innovation and efficiency. The possible adverse impact of a CBDC
on bank funding and financial intermediation, including the potential for destabilising runs into central
bank money, has been a concern of central banks. Any decision to launch a CBDC would depend on an
informed judgment that these risks can be managed, likely through some combination of safeguards
incorporated in the design of a CBDC and financial system policies more generally. Understanding the
potential market structure effects of CBDC, their implications for financial stability, and any potential
mitigants is a further area of work for this group.
A CBDC robustly meeting these criteria and delivering the features set out by this group could
be an important instrument for central banks to deliver their public policy objectives.
This potential, together with the agreement on common principles and features, means there is
considerable scope for future international collaboration, knowledge-sharing and experimentation on
CBDC. Simultaneous research and development of CBDC by central banks could also explore ways to
improve cross-border payments, as part of the G20 roadmap (CPMI (2020)), while avoiding spillovers and
unintended consequences.
The next stage of CBDC research and development will emphasise individual and collective
practical policy analysis and applied technical experimentation by central banks. This report highlights
CBDC design and technology considerations, including initial thoughts on where trade-offs lie. Far more
work is required to truly understand the many issues, including where and how a central bank should play
2 Central bank digital currencies: foundational principles and core features
a direct role in an ecosystem and what the appropriate role might be for private participation. The speed
of innovation in payments and money means that these questions are ever more urgent.
A CBDC could be an important instrument for central banks to continue to provide a safe means
of payment in step with wider digitalisation of people’s day-to-day lives. Public trust in central banks is
central to monetary and financial stability and the provision of the public good of a common unit of
account and secure store of value. To maintain that trust and understand if a CBDC has value to a
jurisdiction, a central bank should proceed cautiously, openly and collaboratively.
This group of central banks will continue to work actively and collaboratively on CBDC, further
exploring the practical implications of the core features. Individually, the contributing central banks will
continue outreach efforts in order to foster an open and informed dialogue with domestic stakeholders
on CBDC. Collaboratively, we will also explore practical issues and challenges for broad interoperability of
domestic CBDCs in accord with related international workstreams (eg the G20 roadmap on cross-border
payments) We welcome further BIS information sharing on CBDC and BIS Innovation Hub plans to explore
the technologies that could support CBDCs.
1. Introduction
Central banks have a mandate for monetary and financial stability in their jurisdictions and, explicitly or
implicitly, to promote broad access to safe and efficient payments. A core instrument by which central
banks carry out their public policy objectives is providing the safest form of money to banks, businesses
and the public – central bank money.
This money acts as a means of payment, unit of account and store of value for a jurisdiction. A
common unit of account is a public good that allows goods and services to be exchanged and financial
transactions to be settled efficiently and safely. Today, central banks provide money to the public through
cash and to banks and other financial companies through reserve and settlement accounts. In this way,
some of the smallest and largest payments in an economy are carried out using central bank money. Yet
the ongoing digitalisation of the economy is changing the way people pay. The use of cash, currently the
only form of central bank money available to the public, is falling in many jurisdictions. The Covid-19
pandemic may be accelerating this trend. Taking cash’s place is private digital money and alternative
payment methods.
Many central banks’ public policy objectives have remained broadly unchanged for the last
hundred years. Yet the significant changes of that period have required central banks to innovate and
evolve in how they met their objectives. A potential further evolution being considered is through issuing
a new form of money: central bank digital currency (CBDC). A recent survey found that 80% of central
banks are engaged in investigating CBDC and half have progressed past conceptual research to
experimenting and running pilots (Graph 1). To coordinate and consolidate some of this work, the central
banks of Canada, Japan, Sweden, Switzerland, the United Kingdom and the United States have come
together, along with the European Central Bank and the Bank for International Settlements. This report
summarises where they collectively stand.
Arguments for and against issuing a CBDC and the design choices being considered are driven
by domestic circumstances. There will be no “one size fits all” CBDC. Yet domestic CBDCs would still have
international implications. Cooperation and coordination are essential to prevent negative international
spillovers and simultaneously ensure that much needed improvements to cross-border payments are not
overlooked.
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