Central Banking at the Frontier

This introduction chapter provides a map for the rest of the book. It starts with the rationale why this book is needed. It then provides an overview of the book, which has four parts. Part I examines how emerging new technologies are leading to new types of players, new types of products and business models, which are foundation to the emerging digital financial landscape which in turn, is itself rife with new challenges for the central banks. Part II examines regulatory updates, the first area of response that the central banks can engage in to help the address the challenges from digital disruption in the financial sector. Part III examines how central banks can engage in the promotion of open digital infrastructures, the second key area of response that the central banks can engage in to address the challenges and shape the digital financial landscape. Part IV examines how central banks might need to upgrade their internal capabilities, such that they can effectively operate in the emerging digital financial landscape, which is a new frontier of central banking.

This chapter reviews new technologies, new types of players and new types of financial products that together are fundamentally affecting supply and demand dynamics in the financial sector and contributing to the emerging digital financial landscape. The aim of this chapter is to set a common understanding on the underlying forces of digital disruption in the financial sector before exploring the challenges to monetary and financial stability that are arising. In later chapters, the book will examine how central banks might deal with the challenges and help shape the emerging digital financial landscape.

This chapter first examines how the confluence of the three forces discussed in the previous chapter is affecting demand and supply dynamics and giving rise to new business models that could form the core of the emerging digital financial landscape. This chapter then examines the challenges that arise from these new business models as well as from digitalization of financial services in general. The next chapter will review how these challenges might affect monetary and financial stability and the strategy that central banks might use to address them.

This chapter looks at challenges that are arising from emerging business models and those that are related to digital finance in general. This chapter first looks at the four challenges relating to new business models, i.e. walled gardens, shadow banking, monetary sovereignty and singleness of money. The chapter then looks at the four challenges relating to digital finance in general, i.e. consumer's data rights, AI ethics, cybersecurity and financial exclusion.

This chapter first reviews the central banks' two key remits, monetary stability and financial stability, and examines how they will be affected either directly or indirectly by the emerging challenges relating to walled gardens, shadow banking, singleness of the money, customers' data rights, artificial intelligence (AI) ethics, cybersecurity and financial exclusion. This chapter will then review three possible areas of responses that the central banks might take to address the emerging challenges: (1) regulations, (2) promotion of open digital infrastructures and (3) central banks' capabilities upgrade. This chapter will then review possible tools that the central banks might use to implement actions in those three key areas.

This chapter starts by reviewing four broad regulatory approaches that exemplified state-of-the-art in major jurisdictions: market-driven approach (the United States), state-driven approach (China), rights-driven approach (the European Union) and innovation-driven approach (the United Kingdom, Singapore, Hong Kong SAR). This chapter then examines possible regulatory updates with regards to walled gardens and shadow banking, the first two of the challenges first identified in Chapter 3. The next two chapters will then examine possible regulatory updates to address the remaining challenges identified.

This chapter examines possible regulatory updates to address the challenges of monetary sovereignty and singleness of money. These two challenges are particularly pertinent to the new means of payments enabled by the use of distributed ledger technology (DLT). These new means of payment include cryptoassets such as bitcoin and ether, stablecoins and tokenized deposits. The degree to which these new means of payment can be a threat to monetary sovereignty and singleness of money can differ widely, depending on the contexts of the jurisdictions, as well as the details of these new means of payment themselves.

This chapter reviews possible regulatory updates needed to address the four general challenges arising from digitalization of financial services, regardless of the business models of the financial services providers. These challenges are customers' data rights, artificial intelligence (AI) ethics, cybersecurity and financial exclusion.

This chapter takes an overview look at open digital infrastructures for financial services: what they are, why they are important for digital financial landscape, and thus why the central banks might need to take an active role to promote them. This chapter also reviews some concrete examples of open digital infrastructures in various jurisdictions to give some context.

This chapter reviews some of the technical background relating to the designs of digital infrastructures for financial services. Such technical background could be useful to the understanding of the design choices that the central banks and pertinent regulators face when developing or promoting open digital infrastructures for financial services. First, the chapter reviews modularity and interoperability in the design of digital infrastructure. The chapter then examines three broad architectural models of open digital infrastructures: decentralized, centralized and distributed. The chapter ends with some lessons learnt from the different architectural models that have been implemented in practice.

This chapter introduces what a digital ID is, why it is important, how it works, the design choices, as well as how central banks can collaborate with other stakeholders in promoting digital ID infrastructures for use in digital financial services.

This chapter reviews digital payment infrastructures at the retail, wholesale and cross-border levels, available operating and governance models and trade-offs. Various developments in the field of digital payments, key challenges and the role of the central banks in helping to address those challenges are introduced. This chapter starts by examining issues in retail payments, before moving on the wholesale and large-value payments, real-time gross settlement (RTGS) which is the core settlement of payment systems before examining cross-border payments. This chapter ends with an overview of the role of central banks in promoting digital payment infrastructures.

This chapter first reviews open banking, a key data sharing initiative promoted by various central banks and regulators around the world to help nudge competition, innovation and better financial services for consumers in the digital age. The chapter then reviews various models and approaches as well as key success factors of open banking, as well as the extensions of open banking into open finance in various jurisdictions.

This chapter first reviews some of the background concepts on central bank digital currency (CBDC) to provide a broad context, before diving into wholesale CBDC often a starting point for central banks to build CBDC prototypes based on distributed ledger technology (DLT), as it involves less complexity in experimentation. This chapter also examines cross-border CBDC, often an extension of wholesale CBDC prototypes based on DLT. The next chapter will then discuss retail CBDC as well as the prospects of economy-wide roll out of CBDC going forward.

This chapter first reviews the current stages of retail CBDC development before examining some of the common characteristics of retail CBDC projects being proposed in various jurisdictions. This chapter then examines the possible future of retail CBDC going forward.

This chapter looks at the need for the central bank to shift their mindset more towards resilience instead of stability at all costs, as well as embracing innovation, experimentation and testing. The chapter then looks at the need for the central bank to upgrade their mode of operations, particularly to achieve a better balance between rules-based and goals-based regulations, and a more collaborative approach towards stakeholders. This chapter ends by looking at the need for digital transformation of central banking operations, both for those external oriented, e.g. SupTech and RegTech, and those internal-oriented.

This chapter examines why the central banks might need to engage in innovation work. Externalities and public good rationales for innovation at central banks are examined. This chapter then looks at different tools such as sandboxes, innovation hubs and TechSprints that the central banks might use to promote innovation with external stakeholders, and how the central banks can promote internal innovation within the central banks. Governance issues related to innovation promotion are also examined.