PROBLEM TO BE SOLVED: To provide a competitive sport related right selling method which is conducted over a network in which an athlete can easily obtain a sponsor even if he does not so become famous, and the sponsor can advertise through the competitive sport without spending so much.;SOLUTION: Sumo sport is held in a theme park, the situation of the sumo sport is widely televised on a terminal 30 via the Internet N by a server 21. Data on the rights (advertising right, copyright) generating attendant on an athlete (a sumo wrestler) 4, data on an athlete 5, and data calculating right price are stored in a database 23. The sever 21 calculates rights-selling price by using elements becoming an index for advertising effect such as rankings, winning record, popularity, actual power, and talent and the like as parameters, and invites a right purchaser in a terminal 30 of a third party through the Internet N. Information forming a yardstick of the advertising effect of the athlete 5 is displayed on the screen of the terminal 30. Advertising rights attaching advertising display 8 to underpants 5 or a flag 6 and the like of the athlete 5 is contained in the selling rights.;COPYRIGHT: (C)2002,JPO
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