Another interesting look at the psychological theory of money on a recent This American Life: http://www.thisamericanlife.org/radio-archives/episode/423/the-in

Another interesting look at the psychological theory of money on a recent This American Life: http://www.thisamericanlife.org/radio-archives/episode/423/the-invention-of-money http://www.thisamericanlife.org/radio-archives/episode/423/t... In particular, the section from about 10:30 discusses how Brazil combatted inflation by essentially replacing their currency with something that everyone agreed was valuable.