As for a sale on a discount on on-line, it is possible for the position which conflicted greatly in the viewpoint on fair Trade Laws to estimate this. A sale on a discount on the Internet touches off the effective competition by a price, so it has a procompetitive function. On the other hand, they are other evaluations referred to as that the sale on a discount on on-line can bring about the financial crisis of a type of industry of the same kind on off-line.
The current laws regulate a sale on a discount on on-line has largely two sorts of methods. One is regulation by predatory price setup applied to all the sale on a discount. Other one is the method of regulating the resale price maintenance act. Moreover, according to the publication culture industry promoting act only less than 10% of sale on a discount is accepted to the publication for less than 18 months after issue.
In examining the resale maintenance act of books with a view of a fair trade policy, it is necessary to carry out the amount of compared the cultural plus effect(procompetitive effect) and competitive minus effect(anticompetitive effect) which it has. The restriction of discount sale on Fair Trade Laws is not demanding what is called requirements for a supplement unlike legislation of each country concerning predatory pricing regulation. It is said that it is a predatory pricing which carried out illegal only within the case where a price can be raised after a rival eliminate by sale on a discount. Suppose that it carries out illegal only within the case where such requirements for a supplement are satisfied also in the case of our country.