Money Tech Blog

News and Views on the Technology of Money: Past, Present, and Future

(Banknotes, Cryptobanknotes, Stablecoins, CBDCs, Bitcoin, and More)

Franklin Noll, PhD Franklin Noll, PhD

History in Banknote Design

Look at almost any banknote design, and you will find historical subject matter depicted. There are good reasons for this.

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Franklin Noll, PhD Franklin Noll, PhD

Cash & the Zero Lower Bound

The Zero Lower Bound in interest rates is caused by the presence of cash, which has a 0% nominal rate. It complicates things when central banks want to go to negative rates to stimulate spending.

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Franklin Noll, PhD Franklin Noll, PhD

The $100 Legal Tender & Monetary Technology

One advantage to physical money over cryptocurrency is that we have an object to study. If we look at the first $100 bills issued by the US Government, it can tell us a lot about mid-nineteenth century monetary technology.

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Franklin Noll, PhD Franklin Noll, PhD

Retail CBDC Remuneration

If a central bank insists on having traditional banknotes as well as a CBDC it severely limits what the central bank can do with its new digital currency to conduct monetary policy.

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Franklin Noll, PhD Franklin Noll, PhD

Legal Tender in the US

Legal tender is a concept that varies from country to country. In many countries, any person or merchant is required by law to accept the legal tender for settlement of a debt. In the US, this is optional.

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Franklin Noll, PhD Franklin Noll, PhD

The $10,000 Bill

Let's talk about the highest denomination banknote that circulated publicly in the US. The first $10,000 bills were issued in the 1870s

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Franklin Noll, PhD Franklin Noll, PhD

CBDCs & Barriers to Adoption

An article on the adoption of contactless payment cards raises concerns for me over the widespread adoption of CBDCs via mobile platforms.

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Franklin Noll, PhD Franklin Noll, PhD

Denominations & the Cash Paradox

Recent work on the cash paradox focuses on the denominations involved. In a study of eight currencies over 30 years, two researchers see a correlation between the type of crisis and the demand for certain denominations.

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Franklin Noll, PhD Franklin Noll, PhD

Cryptocurrencies and Current Money

In the US, when could crypto run into trouble with existing law on private currencies? I believe it arises when crypto or stablecoins become defined as "current" or "lawful" money.

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Franklin Noll, PhD Franklin Noll, PhD

MLK on US Bonds and Notes

Here in the US, it is Martin Luther King Day, celebrating the achievements of the civil rights activist who changed US history. Unfortunately, we do not see many images of him on official US securities or cash.

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Franklin Noll, PhD Franklin Noll, PhD

Why is the Greenback Green?

Why is the Greenback green? The short answer is that green ink was a security feature in the mid-1900s.

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Franklin Noll, PhD Franklin Noll, PhD

CBDC Frontiers

What are the hot topics in CBDCs right now? I think they are privacy, consumer accounts, offline use, and cross-border payments.

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Franklin Noll, PhD Franklin Noll, PhD

Personal Stablecoins

In the remote reaches of the stablecoin future could we see personal stablecoins?

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Franklin Noll, PhD Franklin Noll, PhD

Cash from a Crypto Perspective

We often talk about e-money or crypto in terms of cash, let's take a moment to reverse things and talk about cash from a crypto perspective. Then, we see that cash is a hardware-based system for transferring value person to person.

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Franklin Noll, PhD Franklin Noll, PhD

Counting National Bank Notes, 1907

It's 1907, and two women are counting sheets of National Bank Notes inside the US Treasury Building before they are sent to individual private banks for issuance.

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Franklin Noll, PhD Franklin Noll, PhD

High-Denomination Notes, CBDCs, and Crime

What is the relationship between high-denomination banknotes and CBDCs? Well, there are two basic arguments for getting rid of high-denomination notes: enabling interest rates to go negative and to reduce crime.

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Franklin Noll, PhD Franklin Noll, PhD

Popular Culture and Banknote Design

Yes, this is a real note. In 1901, the US issued a banknote with a portrait of a bison. This is a fine example of how popular culture influences banknote design.

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Franklin Noll, PhD Franklin Noll, PhD

Crypto and US Currency/Security Hybrids

One of the long-running debates raging around cryptocurrency is whether a particular crypto is actually a currency or a security. The monetary history of the United States can shed light on this debate.

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Franklin Noll, PhD Franklin Noll, PhD

Are $2 Bills Unlucky?

$2 notes have long been considered bad luck in the US. The way to remove the bad luck was to tear a corner off the note. Does this make any sense? Yes, it does. Here's why.

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Franklin Noll, PhD Franklin Noll, PhD

Where Have the $500 Bills Gone?

Where have all the $500 bills gone? For much of its history, the US issued notes in the denominations of $500, $1000, $5000, and $10000. But, in 1969, the last notes were effectively retired.

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