Author Archives: Dirk Niepelt

“Libra Paves the Way for Central Bank Digital Currency,” finews and WNM, 2019

My VoxEU column now also on finews and World News Monitor, September 17, 2019.

Digital currencies involve tradeoffs. Libra resolves them less favorably than other projects, and less favorably than CBDC.

When confronted with the choice between the status quo and a new financial architecture with CBDC, most central banks have responded cautiously. But Libra or its next best replica will take this choice off the table – the status quo ceases to be an option. The new choice for monetary authorities and regulators will be one between central bank managed CBDC on the one hand and – riskier – private digital tokens on the other. Central banks have a strong interest to maintain control over the payment system as well as the financial sector more broadly and to defend the attractiveness of their home currency. Nolens volens, they will therefore introduce ‘Reserves for All’ or promote synthetic CBDCs. In economics, things take longer than one thinks they will, as Rudi Dornbusch quipped, but then they happen faster than one thought they could.

How to Prevent Cash Hoarding when Interest Rates are Strongly Negative

On swissinfo.ch, Fabio Canetg explains how the Swiss National Bank prevents banks from hoarding cash rather than holding reserves at the central bank (which pay negative interest). He points to the following sentence in the SNB’s December 2014 press release (my emphasis) and he speculates that banks could, in principle, implement similar schemes to keep depositors from withdrawing cash:

The threshold currently corresponds to 20 times the minimum reserve requirement for the reporting period 20 October 2014 to 19 November 2014 (static component), minus any increase/plus any decrease in the amount of cash held (dynamic component). The change in the amount of cash held is calculated as the difference between the average cash holdings during the most recent reporting period for which the minimum reserve requirement is determined prior to the reference date (cf. section 5 below) and the cash holdings of the corresponding reporting period in a given reference period.

“Libra Paves the Way for Central Bank Digital Currency,” VoxEU, 2019

VoxEU, September 12, 2019. HTML.

Digital currencies involve tradeoffs. Libra resolves them less favorably than other projects, and less favorably than CBDC.

When confronted with the choice between the status quo and a new financial architecture with CBDC, most central banks have responded cautiously. But Libra or its next best replica will take this choice off the table – the status quo ceases to be an option. The new choice for monetary authorities and regulators will be one between central bank managed CBDC on the one hand and – riskier – private digital tokens on the other. Central banks have a strong interest to maintain control over the payment system as well as the financial sector more broadly and to defend the attractiveness of their home currency. Nolens volens, they will therefore introduce ‘Reserves for All’ or promote synthetic CBDCs. In economics, things take longer than one thinks they will, as Rudi Dornbusch quipped, but then they happen faster than one thought they could.

“On the Equivalence of Private and Public Money,” JME, 2019

Journal of Monetary Economics, with Markus Brunnermeier. PDF.

When does a swap between private and public money leave the equilibrium allocation and price system unchanged? To answer this question, the paper sets up a generic model of money and liquidity which identifies sources of seignorage rents and liquidity bubbles. We derive sufficient conditions for equivalence and apply them in the context of the “Chicago Plan”, cryptocurrencies, the Indian de-monetization experiment, and Central Bank Digital Currency (CBDC). Our results imply that CBDC coupled with central bank pass-through funding need not imply a credit crunch nor undermine financial stability.

“Macroeconomics II,” Bern, Fall 2019

MA course at the University of Bern.

Time: Wed 10-12. KSL course site. Course assistant: Christian Wipf.

The course introduces Master students to modern macroeconomic theory. Building on the analysis of the consumption-saving tradeoff and on concepts from general equilibrium theory, the course covers workhorse general equilibrium models of modern macroeconomics, including the representative agent framework, the overlapping generations model, and possibly the Lucas tree model. Lectures follow chapters 1–4 (possibly 5) in these notes.

The Bank of England’s “Future of Finance Report”

Huw van Steenis’ summarizes his report as follows (my emphasis):

A new economy is emerging driven by changes in technology, demographics and the environment. The UK is also undergoing several major transitions that finance has to respond to.

What this means for finance

Finance is likely to undergo intense change over the coming decade. The shift to digitally-enabled services and firms is already profound and appears to be accelerating. The shift from banks to market-based finance is likely to grow further. Ultra low rates, new regulations and the need to invest in updating their businesses mean many UK and global banks are struggling to make their cost of capital. Brexit and political and policy changes around the world will also impact the shape of financial services. Risks are likely to shift.
Regulators and the private sector have to collaborate in new ways as technology breaks down barriers. Finance is hugely important to the UK and the right infrastructure can support new finance.

What we ask the Bank of England to do

Shape tomorrow’s payment system
Enable innovation through modern financial infrastructure
Support the data economy through standards and protocols
Champion global standards for markets
Promote the smooth transition to a low-carbon economy
Support adaption to the needs of a changing demographic
Safeguard the financial system from evolving risks
Enhance protection against cyber-risks
Embrace digital regulation

Mark Carney’s June 2019 speech. See also the 2018 US Treasury report on financial innovation.

FedNow and Fedwire

The Federal Reserve Banks will develop a round-the-clock real-time payment and settlement service, FedNow. The objective is to support faster payments in the United States.

From the FAQs (my emphasis):

… there are some faster payment services offered by banks and fintech companies in the United States, their functionality can be limited. In particular, due to the lack of a universal infrastructure to conduct faster payments, most of these services rely on “closed-loop” approaches, meaning that users signed up to one service cannot exchange payments with users signed up to other services. Other services target ubiquity by relying on users’ bank accounts, but they may face challenges reaching enough banks to allow any two users to exchange payments. Moreover, these services typically use traditional retail payment methods to move funds between accounts. These methods result in a build-up of financial obligations between banks

… fragmented market for end-user faster payment services, with services that may provide faster payment functionality in some circumstances and for some specific uses, like person-to-person payments, but that do not have sufficient reach to advance the U.S. payment system as a whole. The Federal Reserve’s goal in announcing the planned actions is to provide a much broader scope of access to safe and efficient faster payments throughout the country.

… the European Central Bank, Banco de México, and the Reserve Bank of Australia have looked to support the development of faster payments in their jurisdictions by providing services that enable payment-by-payment, real-time settlement of retail payments at any time …

First, the Federal Reserve Banks (the Reserve Banks) will develop the FedNowSM Service, a new interbank 24x7x365 real-time gross settlement (RTGS) service with integrated clearing functionality, to directly support the provision of end-to-end faster payment services by banks (or their agents). Second, the Federal Reserve will explore the expansion of hours for the Fedwire® Funds Service and the National Settlement Service (NSS), up to 24x7x365, subject to further analysis of relevant operational, risk, and policy considerations, to support liquidity management in private-sector RTGS services for faster payments, as well as provide additional benefits to financial markets beyond faster payments.

… Board has concluded that private-sector real-time gross settlement (RTGS) services for faster payments alone cannot be expected to provide an infrastructure for faster payments with reasonable effectiveness, scope, and equity. In particular, private-sector services are likely to face significant challenges in extending equitable access to the more than 10,000 diverse banks across the country.

the service will settle obligations between banks through adjustments to balances in banks’ master accounts at the Reserve Banks; these funds will be eligible to earn interest and count toward banks’ reserve requirements. Consistent with the goal of supporting faster payments, use of the FedNow Service will require participating banks to make the funds associated with individual payments available to their end-user customers immediately after receiving notification of settlement from the service. The service will support values initially limited to $25,000

… the FedNow Service will be available to banks eligible to hold accounts at the Reserve Banks

By expanding Fedwire Funds Service and NSS hours, the Federal Reserve would provide further support to private-sector RTGS services for faster payments based on a joint account.

Some decision makers at the Fed believed that the Fed lacks authority to regulate banks operating payment systems in order to coerce them to offer access also to smaller banks.

Nordhaus on Climate Change

In his Nobel lecture (reprinted in the June issue of the American Economic Review), William Nordhaus concludes that we should focus on four goals:

First, people around the world need to understand and accept … Those who understand the issue must speak up and debate contrarians who spread false and tendentious reasoning. …

Second, nations must establish policies that raise the price of CO2 and other greenhouse-gas emissions. …

Moreover, we need to ensure that actions are global and not just national or local. … The best hope for effective coordination is a climate club, which is a coalition of nations that commit to strong steps to reduce emissions along with mechanisms to penalize countries who do not participate. …

Finally, … [d]eveloping economical low-carbon technologies will lower the cost of achieving our climate goals. Moreover, if other policies fail, low-carbon technologies are the last refuge—short of the salvage therapy of geoengineering—for achieving our climate goals or limiting the damage.

Views on Libra

Different aspects of the Libra proposal that various authors have emphasized:

  • Jameson Lopp on OneZero: A “database of programmable resources;” Move; “[p]erhaps the network as a whole can switch to proof of stake, but in order for the stablecoin peg/basket to be maintained, some set of entities must keep a bridge open to the traditional financial system. This will be a persistent point of centralized control via the Libra Association”; not a blockchain, the “data structure of the ledger history is a set of signed ledger states”; initially, 1,000 payment transactions per second with a 10-second finality time; technical aspects.
  • Laura Noonan and Nicholas Megaw in the FT: Gaining regulatory approval (in each US state, as well as in many countries) is burdensome even if Carney signals “open mind but not open door”; ING declined to be part of consortium; how can merchants be brought onboard?
  • James Hamilton on Econbrowser: Currency board; currency competition.
  • JP Koning on Moneyness: Competition for national banking systems; new unit of account; global monies (or languages) never worked out.
  • Stephen Williamson on New Monetarism: Narrow bank or mutual fund; why “krypto” or “blockchain?” [T]ere’s never been a successful banking system that didn’t have a strong regulatory hand behind it.
  • Corinne Zellweger-Gutknecht and Dirk Niepelt in NZZ, Jusletter: Role of resellers; regulation in Switzerland.
  • Kari Paul in the Guardian: Astrology.

Jordan Peterson’s “12 Rules for Life”

In 12 Rules for Life, Jordan Peterson argues for the kind of values instilled by a socially conservative parental home: Aim for paradise, but concentrate on today. Meaning is key, not happiness. Assume responsibility. Listen carefully, speak clearly, and tell the truth. And stand straight, even in the face of adversity.

Here they are, Peterson’s 12 rules:

  1. Stand up straight with your shoulders back
  2. Treat yourself like you would someone you are responsible for helping
  3. Make friends with people who want the best for you
  4. Compare yourself with who you were yesterday, not with who someone else is today
  5. Do not let your children do anything that makes you dislike them
  6. Set your house in perfect order before you criticise the world
  7. Pursue what is meaningful (not what is expedient)
  8. Tell the truth – or, at least, don’t lie
  9. Assume that the person you are listening to might know something you don’t
  10. Be precise in your speech
  11. Do not bother children when they are skate-boarding
  12. Pet a cat when you encounter one on the street

Peterson motivates the rules by telling stories and anecdotes from his experience as a clinical psychologist, which he mixes with interpretations of religious (mostly biblical) texts as well as Nietzsche, Freud, Jung, Frankl, or Dostoevsky. Peterson gets politically incorrect when discussing his 11th rule: He strongly rejects postmodernism and nihilism; and he shows little respect for management science: “[T]he science of management is a pseudo-discipline.”

As so often, what the author has to say could be said much more concisely. The book is far too long to precisely communicate the core ideas. What are they? Dean Bokhari suggests the following three key quotes from the book:

“We must each adopt as much responsibility as possible for individual life, society and the world. We must each tell the truth and repair what is in disrepair and break down and recreate what is old and outdated. It is in this manner that we can and must reduce the suffering that poisons the world. It’s asking a lot. It’s asking for everything.”

“Clear rules and proper discipline help the child, and the family, and society establish, maintain, and expand the order that is all that protects us from chaos and the terrors of the underworld. Where everything is uncertain, anxiety provoking, hopeless and depressing. There are no greater gifts that a parent can bestow.”

“The successful among us delay gratification. The successful among us bargain with the future.”

He also offers a “tweetable summary:”

Always tell the truth. Admit and learn from the past, make order of its chaos, and work towards not repeating the same mistakes. Pay close attention.

Other reviewers stress that Peterson wants his rules to help us strike the right balance between order and chaos (see also Philippa Perry’s “How To Stay Sane”). For example, Wyatt Graham condenses Peterson’s thinking as follows:

… life (or Being) involves suffering. … So, “We must have something to set against the suffering that is intrinsic to Being. We must have the meaning inherent in a profound system of value or the horror of existence rapidly becomes paramount” (xxxi).

We need to embrace Being, to not give in to suffering, and to find meaning. We need to live in the border between chaos and order and find our meaning there. …

For Peterson, to find meaning is to take on the responsibility of Being. We find it when we realize “that the soul of the individual eternally hungers for the heroism of genuine Being, and that the willingness to take on that responsibility is identical to the decision to live a meaningful life” (xxxv). He continues, “If we live properly, we will collectively flourish” (xxxv).

Yet others offer longer summaries, for example u/AresProductions on reddit, James Razko, or Neil Soni. Nat Eliason collects quotes from the book. Here is my summary of the summaries:

  1. Dare. Show strength in the face of adversity.
  2. Avoid self contempt. Be self-conscious and have a vision.
  3. Assume that you chose the easy path, and then take a different one. Improving is much harder than the opposite. “If you have a friend whose friendship you wouldn’t recommend to your sister, or your father, or your son, why would you have such a friend for yourself?”
  4. Focus on taking one step at a time. And take it.
  5. Teach your kids to behave properly (not least, to make them socially desirable). Discipline is not revenge.
  6. Conduct yourself as if Being is more valuable than Non-Being (or risk becoming a serial killer). Set your own house in order before trying to improve the world. Blame yourself—not for life’s tragedies, but for surrendering to them.
  7. Search for meaning, not for happiness. Sacrifice, i.e., invest.
  8. Be authentic. Avoid life-lies. Tell the truth to yourself and others. Big Wrongs are based on countless small lies. Only truth is compatible with meaning.
  9. Listen.
  10. Lack of precision breeds chaos. Precise speech brings things out of the realm of the unspeakable. Precision separates the unique terrible thing that happened from the others that might have happened—but did not.
  11. Respect culture, and human nature. Pity today’s boys.
  12. Our vulnerability is what makes us human. So celebrate the small joys of life.

In The Guardian, Tim Lott summarized Peterson’s worldview as follows:

“Life is tragic. You are tiny and flawed and ignorant and weak and everything else is huge, complex and overwhelming. Once, we had Christianity as a bulwark against that terrifying reality. But God died. Since then the defence has either been ideology – most notably Marxism or fascism – or nihilism. These lead, and have led in the 20th century, to catastrophe.

“‘Happiness’ is a pointless goal. Don’t compare yourself with other people, compare yourself with who you were yesterday. No one gets away with anything, ever, so take responsibility for your own life. You conjure your own world, not only metaphorically but also literally and neurologically. These lessons are what the great stories and myths have been telling us since civilisation began.”

In another discussion in The Guardian, John Crace made it even clearer that he didn’t like the book at all.

Goodreads contains many reader reviews. Wikipedia page.

Where the Phillips Curve is Alive

In an NBER working paper, James Stock and Mark Watson argue that the correlation between cyclically sensitive inflation (CSI) and bandpass filtered activity measures is high and has not declined over the last decades, contrary to standard measures of the slope of the Phillips curve.

… we construct a new price index designed to maximize the cyclical variation in the price index. This index, which we call Cyclically Sensitive Inflation (CSI), estimates the weights on the component prices to maximize the correlation of the CSI with our bandpass measure of aggregate cyclical variation. … this index places low weights on tradeable goods, such as energy, motor vehicles & parts, and durable household equipment. The index also places low weight on the least well-measured sectors, such as clothing & footwear and final consumption of nonprofit institutions serving households (NPISH). The sectors that receive the greatest weight – housing excluding gas & electric utilities, followed by food & beverages for off-premises consumption, and recreational services – tend to be both locally determined (nontradeable) and relatively well-measured.

 

 

“Libra oder lieber nicht? (Libra, or Better Not?),” NZZ, 2019

NZZ, 10 July 2019, with Corinne Zellweger-Gutknecht. PDF.

Libra is supposed to be backed; the returns on the securities backing it are going to be distributed among the Libra partners; and Libra’s price is supposed to be managed by a network of market makers. We don’t know much more. Will market makers have the incentive to deliver?

See also the longer article in Jusletter.

“On the Equivalence of Private and Public Money,” JME, 2019

Accepted for publication in the Journal of Monetary Economics, with Markus Brunnermeier. (NBER wp.)

When does a swap between private and public money leave the equilibrium allocation and price system unchanged? To answer this question, the paper sets up a generic model of money and liquidity which identifies sources of seignorage rents and liquidity bubbles. We derive sufficient conditions for equivalence and apply them in the context of the “Chicago Plan”, cryptocurrencies, the Indian de-monetization experiment, and Central Bank Digital Currency (CBDC). Our results imply that CBDC coupled with central bank pass-through funding need not imply a credit crunch nor undermine financial stability.

On the Gains from Integration in the European Union

In an interview with the NZZ, Gabriel Felbermayr explains where the European Union adds value, and where it doesn’t. The key points:

  • Free trade for goods and services as well as capital and labor mobility are partial substitutes. Partial, because factor mobility fosters trade and technology transfer.
  • Estimates suggest that free trade and capital mobility generate more than 80% of the welfare gains from European integration.
  • Even labor mobility does not require admission into welfare systems. “… der Nutzen uniformer Regeln im Güter-, Dienstleistungs- und Kapitalbereich [ist] sehr hoch … Dies stimmt indes nicht für das Sozial-, Arbeits- und Steuerrecht, auch innerhalb der EU. … Politisch will die EU die Harmonisierung im Arbeits- und Sozialbereich möglichst ausdehnen, um den Wettbewerb zwischen den Staaten zu disziplinieren. Das ist traditionell ein französisches Anliegen.”
  • The EU’s budget is mis-allocated: “Wenn man das EU-Budget ansieht, gehen 40% in die Landwirtschaft. Es gibt keinen einzigen guten Grund, dass das auf der zentralen Ebene angesiedelt werden muss. Es widerspricht dem Subsidiaritätsprinzip.”
  • What is missing: Capital requirements for government bonds held by banks; a European Monetary Fund; Germany’s long-overdue investments in cross-border rail and energy networks; more EUIs.
  • What is not missing: European redistribution mechanisms disguised as “insurance” schemes. “In den EU-Ländern ist die Qualität der Institutionen sehr unterschiedlich. Das erklärt, warum die Wirtschaftsleistung in manchen Ländern hoch, in anderen niedriger ist. Wir können nicht so tun, als hätten Griechenland und Italien immer Pech, die Niederlande und Deutschland immer Glück. Versicherungen sind gut bei zufälligen Schocks. Die sind aber nicht das Problem.”

Jean-Pierre Landau Argues for CBDC

In the FT, Jean-Pierre Landau argues that central banks should introduce central bank digital currency:

A CBDC would protect the pre-eminence of public money in a digitalised economy. It would maintain effective convertibility of private into public money and provide a defence against digital dollarisation.

For that purpose, a CBDC should be as close as possible to cash. It should be a complement, not a substitute, to bank deposits. It should not carry interest. Whether it should be anonymous, as cash currently is in certain limits, is a fundamental social choice. It must be openly debated as the digitalisation of money forces us to reconsider and rethink the place of privacy in our lives.

“Das Geschäftsmodell hinter Libra (Libra’s Business Model),” Jusletter, 2019

Jusletter, 1 July 2019, with Corinne Zellweger-Gutknecht. PDF.

Libra is supposed to be backed; the returns on the securities backing it are going to be distributed among the Libra partners; and Libra’s price is supposed to be managed by a network of market makers. We don’t know much more. Will market makers have the incentive to deliver?

“Digitales Zentralbankgeld (Central Bank Digital Currency),” FuW, 2019

Finanz und Wirtschaft, June 29, 2019. PDF. Related article in Oekonomenstimme, July 9, 2019. HTML.

    • It is not central bank digital currency (CBDC) per se which might act as a game changer in financial markets. What will be key is how central banks accommodate the introduction of CBDC.
    • In principle, this accommodation can go very far, to the point where the introduction of CBDC does not affect macroeconomic outcomes.
    • But such complete accommodation is unlikely. On the one hand, central banks will want to exploit the new monetary policy options that CBDC opens up; that is, central banks will not choose to fully accommodate.
    • On the other hand, the introduction of CBDC increases transparency and this will increase political pressure; as a consequence, central banks will not be able to fully accommodate.

The Bank of England Welcomes Fintech

In the FT, Chris Giles, Caroline Binham, and Delphine Strauss report about plans of the Bank of England to let fintech companies

bank at Threadneedle Street and thereby offer payments systems on a level playing field with commercial banks.

The editorial board of the FT welcomes the plans; it seems to have in mind not only competition but also “synthetic” CBDC:

By offering fintech companies access to the BoE’s vaults, the governor may inject much-needed competition into the sector. What must follow is proactive regulation …

Commercial banks have traditionally had exclusive access to deposits at the UK’s central bank, offering them a competitive advantage through cheap banking services. … Another potential advantage for consumers is they could be paid the central bank’s often favourable interest rate directly — rather than relying on traditional banks to pass on rate rises.

Mark Carney outlined the plans in his Mansion House speech. Here are some excerpts from the section on digital finance:

… the Faster Payment System (FPS) launched a decade ago has made payments quicker (within two hours) and more cost effective by encouraging direct bank-to-bank transfers.

While mobile app PayM uses FPS to facilitate direct bank-to-bank payments between individuals via text, it requires both the sender and recipient to be signed up to the third party service. But few are. And FPS is not yet used for in-store or online purchases as the infrastructure required at the point of sale does not reliably exist in the UK.

In these regards, the UK is still a long way behind countries such as Sweden, the Netherlands and India …

The revolution of payments may not be driven by the old bank-based systems … Major changes are on the horizon … That’s why the Bank fully supports the Payments Strategy Review the Chancellor has launched this evening.

To support private innovation and to empower competition, the Bank is levelling the playing field between old and new. This means allowing competitors access to the same resources as incumbents while holding the same risks to the same standards.

… we are now making it easier for a broad set of firms to plug in and compete with more traditional providers. In July 2017, we became the first G7 central bank to open up access to our payment services to a new generation of non-bank PSPs. …

Responding to demands from innovators, the RTGS rebuild will also now provide API access to users to read and write payments data, as well as implementing a system whereby each payment will be tagged with information in a standardised format across the world. This global messaging standard will speed up settlement both domestically and across borders.

… Today, the Bank of England is announcing plans to consult on opening access to our balance sheet to new payment providers. Historically, only commercial banks were able to hold interest-bearing deposits, or reserves, at the Bank. …

From the Bank’s perspective, expanding access can improve the transmission of monetary policy and increase competition. It can also support financial stability by allowing settlement in the ultimate risk free asset, and reducing reliance on major banks. Users should benefit from the reduced costs and increased certainty that comes with banking at the central bank. …

This access could empower a host of new innovation. … settlement systems using distributed ledger technology … consortia, such as USC, propose to issue digital tokens that are fully backed by central bank money, allowing instant settlement. This could also plug into ‘tokenised assets’ – conventional securities also represented on blockchain—and smart contracts. This can drive efficiency and resilience in operational processes and reduce counterparty risks in the system, unlocking billions of pounds in capital and liquidity that can be put to more productive uses.

The potential transformation in retail payments is even more fundamental. …

The Bank of England approaches Libra with an open mind but not an open door. Unlike social media for which standards and regulations are being debated well after they have been adopted by billions of users, the terms of engagement for innovations such as Libra must be adopted in advance of any launch.

Carney also outlines plans to support initiatives that aim at giving households and firms control over “their” data:

To make real inroads, SMEs must be able to identify the data relevant to their businesses, incorporate it into their individual credit files, and easily share these files with potential providers of finance through a national SME financing platform.

This would put into practice the recommendations from Professor Jason Furman’s Digital Competition Panel report on how to extract value from data and promote competition. One of the most important recommendations in this regard is to give consumers control of their data. This would allow consumers to move their personal information from one platform to another and avoid lock-in effects, opening the door to new services. To some extent, this is what Open Banking hopes to achieve. Although to make this a success means establishing common off the-shelf API standards and operating platforms onto which developers can build. …

It is not for the Bank of England to build this platform but we can help lay some of groundwork. The messaging standards we are adopting in the new RTGS will also include tagging payments with a unique ID called a Legal Entity Identifier (LEI).

Link to earlier post on the SNB’s policy.

Libra

In the FT, Hannah Murphy reports about Facebook’s launch of Libra.

Lots of skepticism in the comments section.

And Hannah Murphy reports that

[p]ositive Money, a consumer campaign group, attacked the proposal. “Our money is increasingly in the hands of a small number of banks and payment companies, and we should avoid ceding further control to unaccountable corporate interests. Facebook’s plans pose alarming implications for privacy and power in the economy,” said David Clarke, the head of policy at the group.

The Future of Money – CBDC and Beyond

At the conference of “Positiva Pengar” and “Monetative” in Stockholm, I argued that it is not so much the introduction of CBDC which would make a difference, but the policies accompanying such an introduction. This view is backed by research of Markus Brunnermeier and myself, as well as by myself.

Many of the proponents of the sovereign money movement appeared open to the argument. Some of the followers, however, did not; they associate CBDC with many benefits that money, in whatever form, will not be able to deliver.

“On the Equivalence of Private and Public Money,” CEPR, 2019

CEPR Discussion Paper 13778, June 2019, with Markus Brunnermeier. PDF. (Local copy of NBER wp.)

We develop a generic model of money and liquidity that identifies sources of liquidity bubbles and seignorage rents. We provide sufficient conditions under which a swap of monies leaves the equilibrium allocation and price system unchanged. We apply the equivalence result to the “Chicago Plan,” cryptocurrencies, the Indian de-monetization experiment, and Central Bank Digital Currency (CBDC). In particular, we show why CBDC need not undermine financial stability.