METHOD AND SYSTEM FOR SALE CONDITION NEGOTIATION, AGENCY DEVICE, AND RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a method and a system for sale condition negotiation, an agency device, and a recording medium which enable a buyer to negotiate with advantageous conditions and a seller to perform efficient sales activities when the seller who sells a supply product and the buyer who buys the supply product from the seller negotiate with each other about the sale conditions of the supply product. SOLUTION: A broker combines buyers together as a buyer group to provide a virtual large-scale buyer which has a large purchase quantity, gathers sale conditions from sellers as the large-scale buyer, and let the seller which presents optimum conditions make a contract with the buyer group.