| 摘要 |
An advertisement portfolio model for lessening the advertisement deal risk o f an individual advertisement commodity, wherein a relation for determining a total advertisement management index statistically indicating the maximum estimated loss that an advertisement commodity suffers with a certain probability during the advertising period is derived, data on the correlatio n of the advertisement commodity is calculated from the observation data on th e advertisement commodities, an optimum combination of advertisement commoditi es is made so as to analyze at least one of the effect, efficiency, and risk of advertisement commodities on the basis of the relation for determining the total advertisement risk management index and the correlation coefficient data, or the observation data collected considering the correlation indirectly, and thus a combination optimum to the advertiser can be provided .
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