Method for auction which buyer and seller both can negotiate a bid price

摘要

PURPOSE: An auction method is provided to automatically lower a sale price until a bid price is matched with the sale price and to automatically raise a bid price until the bid price satisfies a sale price. CONSTITUTION: The method comprises several steps. First, a seller registers data on an auction goods at a database, receives a corresponding auction number, and a web server publicizes the registered auction data(S110-S116). In a case that there has been no successful bid for a set time, the web server lowers the sale price by a set price width(S126). In a case that the seller requests an auction cancellation, the web server cancels an auction registration(S138). In a case that a buyer requests data on the auction goods, the web server transmits the list of the auction goods and relevant data to the buyer(S144). In a case that the buyer sends a bid price to the web server, the web server transmits the bid price to the seller and the buyer(S148). In a case that the seller accepts the transmitted bid price, the web server determines the buyer as a successful bidder, transmits the bid result to the seller and the buyer, and finishes the auction(S152). In a case that a buyer requests a purchase reservation registration, the web server transmits the reservation registration data to the seller and the buyer(S162). In a case that a seller selects an instant sale, the web server determines the seller as a successful bidder(S168, S152). In a case that a purchase price of the reservation registration data is higher than a registered hopeful sale price, the web server proceeds to a successful bidder determination step(S170). In a case that a purchase price of the reservation registration data is lower than a registered hopeful sale price, the web server automatically raises the purchase price by a set price raise width(S174).