| 摘要 |
PURPOSE:To put a contract price in a proper price range as much as possible by suppressing a rise in price due to the radical tactics of a bidder. CONSTITUTION:While the price displayed on the price display part 74 of a display board D by a price raising means 50C at a specific speed set by a price raising speed setting means 50I, a bidder who intends to buy sends a bidding signal by operating a bidding machine K and a bidder who does not intend to buy quits sending the bidding signal. An auction operation device S performs specific auction processing on the basis of the bidding signal and a price stopping means 50D stops raising the price according to the detection by a bidding detecting means 50A, determining the contract price. In the process of this auction. a price slowing-down means 50K reduces the price raising speed set in the price raising speed setting means 50I when the raised price exceeds a reference price set in a reference price setting means 50J. Consequently, the price raising speed of the price raising means 50C is reduced. |
