| 摘要 |
Provided is an advertisement portfolio model that can reduce a risk in an advertisement transaction for an individual advertisement product. Since in an advertisement portfolio model according to the present invention, firstly a relational expression to determine a comprehensive advertisement risk management index is derived, which is an index for statistically representing a maximum unexpected loss amount which the advertisement product is subject to at a certain probability during the advertising campaign period, secondarily a plurality of correlation coefficient data of the advertisement product are calculated from the observational data of the advertisement product, and thirdly an optimal combination of the advertisement products is figured out in order to analyze at least either one of an effect, an efficiency or a risk of the advertisement product based on the relational expression for determining the comprehensive advertisement risk management index and the plurality of correlation coefficient data or the observational data which has taken the correlation into account indirectly, thereby the present invention can provide a sponsor with an optimal combination of the advertisement products.
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