PROBLEM TO BE SOLVED: To provide a management system for auction system, an auction system suitable to the management system and a Web server for auction for returning surely some charge to a buyer when a state relevant to a returns permission reason of a successful bid object that is previously contracted after an auction transaction is settled.;SOLUTION: An auction management subject receives the deposit of security from a seller before an exhibited object is put up to auction and a state relevant to a returns permission reason of a successful bid object that is previously contracted occurs after an action transaction is settled. Under such conditions, the auction management subject repays the charge to the buyer in place of the seller within the range of the deposited security.;COPYRIGHT: (C)2001,JPO
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