| 摘要 |
PROBLEM TO BE SOLVED: To provide a person who wants to purchase with quick selection of a seller providing a commodity appropriating the taste of a purchaser as much as possible at a certain sum, and to provide the seller with sales promotion of a commodity which can be provided at certain sums presented by purchasers to as many purchasers as possible. SOLUTION: An intermediary A receives a demand from the person C who wants to purchase and who will present a purchase sum on a communication network. The intermediary A presents the sum to a plurality of sellers S on the basis of a demand result. After a seller S is determined providing a commodity most appropriating the taste of the person C from the sellers S applying random commodities which can be provided at the certain sum, the intermediary A collects an intermediary fee from the seller S, introduces the determined commodity and the seller S providing it to the person C, and establishes a commodity transaction. |
