| 摘要 |
PROBLEM TO BE SOLVED: To promote electronic commerce by giving amusement, competition, etc., when a seller and a buyer determine a price. SOLUTION: The buyer is able to lower the price of a selected article or service according to the behavior of the buyer in accompanying activity. The seller provides articles or service within a specific price range. The buyer when obtaining the highest points in the accompanying activity accepts proffer on condition that the buyer can obtain a chance to deal with the lowest price in the provided price range. The final price is within the agreement price range and determined on the basis of the behavior of the buyer in accompanying price determining activity. The price determining activity is a video game, an electronic board game, sports betting, a card game, etc., and done with a seller, an opponent of previously programmed software, an opponent of a computer, another buyer which competes for the same or a different article, and a player which joins as not a buyer, but a player. |
