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Constant value theory:
Value is a thing of the role, value is constant.
For a role, the role of the size and extent of how to determine? Such as the invention of electric light on the great progress of mankind, or the invention of the aircraft big progress of mankind? Or the invention of electric light is a positive thing for sure that the value of this thing is worth?
So many questions about the role of a value, the role of value precisely because the key to pricing, the following description of each of these questions.
First, the size and extent of the value of the role of how to judge? To solve this problem, we must first understand the value of classification.
Value Category:
I think that, at present, there are three human values, according to order of importance, one spiritual values, and second, demand value, the three is the product value. These three values are mutually independent.
Spiritual values: the role of people awareness activities.
Demand value: Demand is a standard. Demand value is the description of the state in which the demand.
Product Value: Describe the role of products.