Wednesday, October 1, 2008

wealth and money

In economics, money is a broad term that refers to any financial instrument that can fulfill the functions of money. Modern monetary theory distinguishes among different types of monetary aggregates, using a categorization system that focuses on the liquidity of the financial instrument used as money.
Representative money is money that consists of token coin, other physical tokens such as certificates, and even non-physical "digital certificates" (authenticated digital transactions) that can be reliably exchanged for a fixed quantity of a commodity such as gold, silver or potentially water, oil or food. Representative money thus stands in direct and fixed relation to the commodity which backs it, while not itself being composed of that commodity.

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