Legal concept of money, Gleeson, Simon (partner, Clifford Chance Llp)

As new electronic payment mechanisms proliferate, this question of definition is likely to become an important issue in global legal, commercial, economic, macro-prudential and fiscal policymaking. The book re-examines money in this context by identifying the role it plays in various transactions
and to what extent, for example, cryptocurrencies and quasi-money are interchangeable with, analogous to, or different from traditional monetary systems.

Beginning with a summary of the legal nature of money, the book explains the distinction between money and payment obligations, as well as providing an overview of the fundamental characteristics of money. It analyses how the law identifies money by pinpointing characteristics of particular
transactions such as sale of goods transactions, including the position where the exchange of goods is for e-currency.