Commerce system, commerce method and recording medium for recording a sales pricing data structure

摘要

As for this invention, with the system which for example is used for online shopping, referring to the keyword database and the keyword database, it is the trade transaction system which consists of with the trade transaction server who has the selling price setting expedient which sets selling price and the telecommunication network which connects these with the customer terminal. The hit price which is hit in the keyword which is input in this trade transaction system, due to inputting the keyword where the customer is various, is presented. Whether or not as for the customer, the hit price which is presented propriety it judges, it is possible to do commodity purchase contract. Therefore, for the customer, it is possible, becomes easy to guarantee the customer of fixing to offer attractive online shopping. This online shopping has also the usefulness which can control the decrease of the excessive price which depends on falling to price competition.