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A Price and Value
In this; chapter we discuss the basic determinants of price . Price is not the same thing as value. Things are 'valu-able' because people think theу are, and for no other reason. The "value' which an individual places on a commodity can not be measured; its value will be different for different people. This kind of subjective value is not the concern of the economist "who is interested only in ' value £n exchange'. The economic worth of value of a good can only be measured in some kind of market transaction which reveals the value of the good in terms of what is offered in exchange for it. If 5 lb of potatoes will exchange for 5 lb of sugar, then the 'price' of 1 lb of sugar is 5 It» of potatoes. Nowadays practically all exchanges represent an exchange of goods and services for money, and prices in terms of money are the market value of the things they buy.
Markets
Prices arise in exchange transactions and this implies some kind of market. This need not, necessarily, be a fixed location — a building, or a market place. We are all familiar with the open and covered markets in the centers of our towns, but in the modern world the word 'market' has a much wider meaning. Any effective arrangement for bring-ing buyers and sellers into contact with one another is; defined as a market. The small ad. columns of the local newspaper provide a very efficient market for second-hand cars. Face to face contact between buyers; and sellers is not a requirement for a market to be able to operate efficiently. In the foreign exchange market, buyers and sellers are separated by thousands of miles, but the knowledge of what is happening in the market is just as complete, and the ease of ' dealing is just as effective as if the participants were in the same room.