- A private money is a widely accepted medium of exchange or payment issued by a non-governmental body in the absence of any legal privileges. Private monies do not have to be generally acceptable; they merely have to be widely accepted. Three examples of contemporary private monetary systems are the Liberty Dollar, e-gold and cryptocurrencies. The former two are based on precious metals and the best-known instance of the latter is Bitcoin.
- There is a public demand for and interest in private currencies from various groups of people. Some wish to hold private currencies in the expectation that they will not diminish in purchasing power as state money has; some wish to conduct illegal activity; some wish to be part of a movement against increasing state control of economic and personal behaviour; and others just want better money.
- The Liberty Dollar was based on a private mint that issued gold and silver coins; it also issued notes redeemable in precious metals. It was periodically revalued against the US dollar as the value of the latter fell over time against the precious metals. The Liberty Dollar was specifically designed to function in parallel with and in competition to the US dollar and never marketed or represented as official US currency.
- The Liberty Dollar was highly successful and became the second most popular currency in the US. Though initially tolerated, the US government turned against the Liberty Dollar, declared its use a federal crime and eventually secured a conviction against its founder for counterfeiting, fraud and conspiracy against the United States. This was an extraordinary result given that the purpose of the founders of the Liberty Dollar was