Abstract: A “holiday” approach to forecasting department and/or corporate weekly sales profiles may be applied to weeks having shifting weekday holidays. In the United States, for example, shifting weekday holidays may include Valentine's Day, Independence Day, Thanksgiving, Christmas, and New Year's Eve/Day. The holiday approach may be applied the week before and the week including the holiday. The department weekly sales profile forecast for the holiday week may be based on a relationship between a department weekly sales profile and a corporate weekly sales profile for the holiday week for one or more previous years, and on the corporate weekly sales profile for the holiday week the last time the holiday occurred on the same day of the week.

Abstract: A system analyzes past sales data to identify those product assortments that may lead to the largest sales volume for the product category. The system estimates an incremental sales volume increase associated with each of one or more product assortments. The system may further identify which assortment will result in the largest sales volume for the product category, and may generate a ranking of the one or more assortments based on their associated incremental sales volume increase.

Abstract: Regular sales of a product during a period of time including at least one sales promotion for the product is estimated based on actual sales data for the product during the period of time. A correlation value for each pair of products is calculated. One or more products that are similar to a target product of are determined based on the correlation values of the similar products to the target product. Baseline sales of the target product during the period of time is calculated based on the estimated regular sales for each of the similar products. An incremental sales lift for the target product during the period of time is calculated based on actual sales data for the target product and the baseline sales of the target product during the period of time.