RIGHTS RESERVED

Diminishing the value of principle and the formula:
 Assuming a population with Y individuals, A product, A product of the total value of X, n is the number of products, then the total value of A product formula is:
 X = 1+ 0.5+ 0.5 × (1-4 / Y)+ 0.5 × (1-4 / Y × 2)+ 0.5 × (1-4 / Y × 3) ...+ 0.5 × (1-4 / Y × (n-2) )
 = 0.5 +0.5 × n-1 / Y × (n × n-3 × n +2)
 When the number of products n = Y / 4 +2, the first product of the value of n is zero, the n value of the product before the product is positive, the n value of the product after product is negative.
 The value of a class of product accumulation. A product continues to increase capacity in the process, not a linear increase in total value, but limited by the demand, although demand is unlikely to accurately judge, but the assumption of a new product to get the public recognition, so all can get the public recognition of products Accumulation of the total value of the formula, that is, the above formula.