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ver, by acting as an intermediary, money increases the ease of trade. Money is also called a bearer of options or generalized purchasing power. This indicates the freedom of choice that the use of money offers. The owner of the cow need not procure goods and services from those to whom he sold his cow. He can use the money to buy the things he wants most, from those who offer him the best bargain (not necessarily those who bought his cow), at the time he considers most advantageous (not necessarily immediately). Again, this function can only be performed properly if the value of money remains constant.

Money as a Standard of Deferred Payments作为延期付款的标准

If money performs the previous two functions then it may also perform the function of being the unit in terms of which deferred or future payments are stated. Examples of situations where future payments are to be made are pensions, principal and interest on debt, salaries etc. As long as money maintains a constant value through time, it will overcome the problems associated with making future payments with specific commodities. 

Money as a Store of Value作为价值储存的金钱

If money becomes a unit of value and a means of payment then it may also perform the function of serving as a store of value. The holders of money are holders of generalized purchasing power that can be spent through time. They know that it will be accepted at any time for any good or service and is thus a store of value. This function will be performed well as long as money retains a constant purchasing power. 
It may be noted that any asset other than money may also perform the function of store of value, for example, bonds, land, houses, etc. These assets have the advantage that, unlike money, they yield income and may appreciate in value over time. However, they are subject to the following:
(1) They may involve storage costs,
(2) They may not be liquid in the sense that they could not be quickly converted into money without loss of value, and
(3) They may depreciate in value. A person may choose to store value in any form depending on considerations of income, safety and liquidity. 
Kinds种类

Commodity Money商品货币

Commodity money refers to money whose value comes from a commodity out of which it is made. Examples of commodities that have been used as money include gold, silver, copper, salt, large stones, decorated belts, shells, and cigarettes.
Commodity money is to be distinguished from representative money which is a certificate or token which can be exchanged for the underlying commodity. A key feature of commodity money is that the value is directly perceived by the users of this money, who recognize the utility or beauty of the tokens as they would recognize the goods themselves. That is, the effect of holding a token for a barrel of oil must be the same economically as actually having the barrel at hand. This thinking guides the modern commodity markets, although they use a sophisticated range of financial instruments that are more than one-to-one representations of units of a given type of commodity.
In situations where the commodity is metal, typically gold or silver, a government mint will often coin money by placing a mark on the metal that serves本论文由英语论文网提供整理，提供论文代写，英语论文代写，代写论文，代写英语论文，代写留学生论文，代写英文论文，留学生论文代写相关核心关键词搜索。