Because of its universal acceptance.
Barter--exchanging goods or services for other goods or services--existed before money and it's still used. There are a couple problems with it...the first is the person who has what you need might not need what you have. If you're a barber who needs scissors, you might have to trade haircuts to ten people for potatoes. You'd then trade the potatoes for hams, the hams for beer and then the beer for scissors. You'd have to hire a secretary just to trade all the stuff people gave you for haircuts. The other problem is fractional worth. You make wagon wheels. A wagon wheel is worth more than a haircut, and you can't trade part of a wagon wheel for anything--they only work when intact. To get a haircut you must first sell a wheel for a barrel of crackers, which you can then use to buy haircuts, grease or whatever you need.
Money is better than barter first because everyone accepts it in trade for their wares, and second because you can make change for it. If you sell a wagon wheel for $10, and a haircut costs a quarter, you can take one dollar to the barber, get your hair cut and receive three quarters in change.
There was a time when money was not used as a medium of exchange. In fact in many parts of the world it isn't. Once upon a time merchants and the like exchanged their products. For instance a fruit seller might give a number of apples to a fabric maker and they would call it a fair exchange.
But currency dates back thousands of years. Ancient Roman coins are displayed in virtually every museum in the world.
It is possible that money became more valuable as a medium of exchange as society grew more sophisticated. It wasn't possible to buy or build a house by exchanging wares. Hence money became the standard exchange.
Of course all money is not equal. Consider the value of the American dollar compared to that of Mexico or England. In that situation we look for the exchange rate in order to keep the exchange as fair as possible.
Bb
money is called a medium of exchange because it acts as an intermediate in exchange of commodities
The most important requirement for money to be medium of exchange is the value of money.
Money serves as a medium of exchange because it can be used to exchange many different types of goods or services by itself.
A _barter_ system involves the direct exchange of goods and services without the use of money as a medium of exchange.
Laws set by the government give Fiat money its value as a medium of exchange. Unlike traditional money or currency, it has no good which act as a medium to back it up.
money is called a medium of exchange because it acts as an intermediate in exchange of commodities
money is called a medium of exchange because it acts as an intermediate in exchange of commodities
The most important requirement for money to be medium of exchange is the value of money.
Money serves as a medium of exchange because it can be used to exchange many different types of goods or services by itself.
Money!
A _barter_ system involves the direct exchange of goods and services without the use of money as a medium of exchange.
Laws set by the government give Fiat money its value as a medium of exchange. Unlike traditional money or currency, it has no good which act as a medium to back it up.
Products or services
It serves as a medium of exchange.
Commodity money has become a medium exchange. This money has a common value and can be easily divided. Generally, a single item that would be accepted in exchange for other goods. For example: Coins, gold, grains, silver, currency, etc.
A medium of exchange
medium of exchange