As bitcoin becomes more important as a worldwide financial phenomenon, it also becomes important to understand its sources of value formation. There are three ways to obtain bitcoins: buy them outright, accept them in exchange, or else produce them by 'mining'. Mining employs computational...

A core function of any banking system is the provision of payments. However, a greater number of non-banks are becoming part of the payments landscape. Payments can be made via fiat or crypto currencies, bank credit or deposits, or funds transfers on the books of non-bank payment providers. Most...

Can competition work among privately issued fiat currencies such as Bitcoin or Ethereum? Only sometimes. To show this, we build a model of competition among privately issued fiat currencies. We modify the current workhorse of monetary economics, the Lagos-Wright environment, by including...

Can competition among privately issued at currencies such as Bitcoin or Ethereum work? Only sometimes. To show this, we build a model of competition among privately issued at currencies. We modify the current workhorse of monetary economics, the Lagos-Wright environment, by including...

We study how the introduction of a central bank-issued digital currency affects interest rates, the level of economic activity, and welfare in an environment where both central bank money and private bank deposits are used in exchange. Banks in our model are financially constrained, and the...

The New Monetary Economics predicts that a low-transaction-cost world will be characterised by monetary separation. Current innovations in the payment system seem to bring us closer to such a moneyless world. However, market microstructure theory suggests that transaction costs will not fall to...

The falling use of cash and the advent of digital technologies support the possibility of reconfiguration of monetary transactions without any intermediation of physical monetary tokens. The introduction of electronic money, especially in the guise card-based technologies but also as pre-charged...

The purpose of the paper is to consider how the financial system might change from technology that is introducing new forms of electronic money that by-passes banks, current laws and institutional practices. The introductory first Section identifies the illogical and inefficient features of the...

We study the economics of Bitcoin transaction fees in a simple static partial equilibrium model with the specificity that the system security is directly linked to the total computational power of miners. We show that any situation with a fixed fee is equivalent to another situation with a...

This paper discusses the externalities and market failures in cryptocurrency markets. In particular, I highlight the significant environmental externalities created by Proof-of-Work (PoW) cryptocurrencies, the most prominent of which is Bitcoin. The main goals of this paper are to quantify these...