PROBLEM TO BE SOLVED: To provide an advertisement operation system capable of providing advertisements at low price in a lot of locations including popular locations while deriving potential of electronic signboards.;SOLUTION: An advertisement operation system 100 which repeatedly broadcasts loop advertisements in each of liquid crystal monitoring devices 102 includes a broadcasting fee storage part for storing advertisement broadcasting fees of CM members, a designation input part for inputting designation information of a liquid crystal monitoring device 102 from a CM sponsor, a first reduction fee calculation part for calculating each reduction fee for a CM member related to a designated liquid crystal monitoring device 102 and a group to which the CM member belongs, and a first and third billed amount determination part for reducing the calculated reduction fee from the advertisement broadcasting fee stored in the broadcasting fee storage part so as to determine an advertisement broadcasting fee to be billed to each CM member.;COPYRIGHT: (C)2012,JPO&INPIT
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