A purchase price bid research system comprises: a mediator server connected to
a communication network and to intending purchaser terminals, wherein the intending
purchaser terminals transmit purchase price bids for a product to the mediator
server, and from among the purchase price bids for the product tendered by the
intending purchaser terminals, the mediator server determines, as effective purchase
price bids, values that are equal to or higher than a lowest price designated in
advance for the product, and employs the effective purchase price bids tendered
by intending purchasers to calculate a standard purchase price for the product.
