Later, when the expanding society. The population increased rapidly. The needs of the population began to change from a requirement of four factors, as the demand is unlimited and no end. These requirements include the requirements necessary to make living and facilities. In everyday life, which vary according to the era of prosperity of our society, such as the demand for video cassette, refrigerator, air conditioner, washing machine, car, location services, recreation and entertainment, etc., but this needs different kinds of people do not get the check.Rabambat. Every human society is experiencing a shortage of things to a lot of little else different? This is because there are a limited number of resources in the world and scattered in various countries, inequality in the current, even though people have the ability to bring resources used more effectively based on technical progress and Science:But human society more prosperous, more compressed. The demand for new services and facilities, the more it grows. Thus was born the rare resource in their respective economies from such behaviour, the need to learn the processes for allocation of resources are limited or rare resources, human and social benefit as much as possible.
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