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Journal Article
Bitcoin vs. the Buck: Is Currency Competition a Good Thing?
Ever since the U.S. established a single currency in the 19th century, the idea of private money has evoked panics and bank failures. In the cryptocurrency era, can the dollar stay sound?
Discussion Paper
Bitcoin Is Not a New Type of Money
Bitcoin, and more generally, cryptocurrencies, are often described as a new type of money. In this post, we argue that this is a misconception. Bitcoin may be money, but it is not a new type of money. To see what is truly new about Bitcoin, it is useful to make a distinction between “money,” the asset that is being exchanged, and the “exchange mechanism,” that is, the method or process through which the asset is transferred. Doing so reveals that monies with properties similar to Bitcoin have existed for centuries. However, the ability to make electronic exchanges without a trusted ...
Working Paper
Beyond the Doomsday Economics of “Proof-of-Work” in Cryptocurrencies
This paper discusses the economics of how Bitcoin achieves data immutability, and thus payment finality, via costly computations, i.e., ?proof-of-work.? Further, it explores what the future might hold for cryptocurrencies modelled on this type of consensus algorithm. The conclusions are, first, that Bitcoin counterfeiting via ?double-spending? attacks is inherently profitable, making payment finality based on proof-of-work extremely expensive. Second, the transaction market cannot generate an adequate level of ?mining? income via fees as users free-ride on the fees of other transactions in a ...
Working Paper
The Lightning Network: Turning Bitcoin into Money
The Lightning Network (LN) is a means of netting Bitcoin payments outside the blockchain. We find a significant association between LN adoption and reduced blockchain congestion, suggesting that the LN has helped improve the efficiency of Bitcoin as a means of payment. This improvement cannot be explained by other factors, such as changes in demand or the adoption of SegWit. We find mixed evidence on whether increased centralization in the Lightning Network has improved its efficiency. Our findings have implications for the future of cryptocurrencies as a means of payment and their ...
Speech
Transcript of Fireside Chat at Rutgers University—New Brunswick: November 29, 2017
Transcript of Fireside Chat at Rutgers University?New Brunswick: November 29, 2017.
Discussion Paper
Is Bitcoin Really Frictionless?
Bitcoin is the most popular virtual currency yet developed. Proponents assert that bitcoin can remove frictions involved in payment and settlement systems by eliminating the need for the financial intermediaries that exist in traditional currencies. In this blog post, we show that while bitcoin transfers themselves are relatively frictionless for the user, there are significant frictions when bitcoins trade in exchange markets resulting in meaningful and persistent price differences across bitcoin exchanges. These exchange-related frictions reduce the incentive of market participants to use ...
Discussion Paper
Token- or Account-Based? A Digital Currency Can Be Both
Digital currencies, including potential central bank digital currencies (CBDC), have generated a lot of interest over the past decade, since the emergence of Bitcoin. The interest has only grown in recent months because of a desire for contactless payment methods, stemming from the coronavirus pandemic. In this post, we discuss a common distinction made between “token-based” and “account-based” digital currencies. We show that this distinction is problematic because Bitcoin and many other digital currencies satisfy both definitions.
Briefing
A Historical Perspective on Digital Currencies
This article reviews private currencies in U.S. history to shed light on the contemporary issue of digital currencies. This perspective suggests that government interventions have a critical role in creating a well-functioning money and payments system. Particularly, a central bank digital currency (CBDC) can be a useful tool to supplement regulation in addressing long-standing concerns and risks associated with private currencies.