DemandTec Forecast Lift Patent

I have been following long-time correspondent DemandTec more closely in the past months.  Here is another item of interest: " ... The latest patent covers techniques developed by DemandTec that enable users to analyze the forecasted volume lift resulting from changes in prices and promotional activity over multiple user-defined product groups. These calculations take into account both the direct impact of pricing and promotional decisions as well as the interactions between products, enabling a more holistic impact assessment. The techniques can be applied to a variety of transaction aggregations such as store, price zone, or shopper segment.... "