английский текст на тему "финансы" или то, что с этой темой связанно..

Money as a unit of account
In performing its roles as a medium of exchange and a store of value, money serves a third purpose. It is a way of measuring the relative values of different goods. This is the unit of account function of money. If a banana costs 25 pence and a peach 50 pence, then a peach is worth twice as much as banana. A person who wishes to trade bananas for peaches can do so at the rate of two bananas for one peach. Money thus provides a simple and convenient yardstick for measuring relative market values.
Imagine how difficult it would be for firms to keep track of how well they were doing without such a yardstick. The leaders might describe how many of each item the firm bought or sold. But the fact that the firm sold more items than it purchased would tell you nothing about how well that firm was doing. You need to know the value of what the firm sells relative to the value of what it purchases. Money provides the unit of account, the means by which the firm and others take these measurements. Money is anything that is generally accepted as a medium of exchange, a store of value, and a unit of account. Money is, in other words, what money does.
One of the problems of defining money is that there are many financial assets differing in the ease or convenience or effectiveness with which they can be used as a means of payment or store of value. Each tends to be very similar to the next, so that it is not clear where to draw the line in deciding what is and what is not money.